Here is my new weekly weather quiz question. What is a “Lightning Channel?

_________________

An Upper Level Low  (“U” shape) is moving eastward and will weaken the moisture flow to the Pacific Northwest to be replaced by a High Pressure Ridge (“Arch” shape). The graphics for days 1-3  show the frontal system, show no frontal systems approaching the Pacific Northwest. The graphics for days 3-7  Saturday through next Wednesday show a quiet weather pattern with a frontal system lingering offshore next Wednesday.

________________

Air Quality Index:

Eugene/Springfield: The Air Quality Index is 34 in the good category measuring Ozone.

Oakridge: The Air Quality Index is 12 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 32 in the Good category measuring Ozone.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

________________

ADVISORIES:

• A FLOOD WARNING IS IN EFFECT UNTIL LATE THIS MORNING FOR THE JOHN DAY RIVER AT SERVICE CREEK AFFECTING WHEELER COUNTY DUE TO RAIN AND SNOW MELT.
• A FLOOD WARNING IS IN EFFECT FOR THE SILVIES RIVER NEAR BURNS AFFECTING HARNEY  COUNTY UNTIL   THIS EVENING DUE TO RAIN AND SNOW MELT.

HEALTH ADVISORIES:

Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:

• AM sun with a slight (20%) chance of rain, partly cloudy with a (30%) chance of showers and a slight (20%) chance of thunderstorms and a bit warmer this afternoon (under 0.10 in. of rain possible), partly cloudy tonight,
• A mix of clouds and sun and a bit warmer Thursday, mostly clear at night,
• Mostly sunny and a bit warmer Friday, then mostly clear Friday night.
• highs 70-80 lows 44-53.
• Sunny and a bit warmer Saturday, clear Saturday night,
• Sunny and a bit warmer Sunday, mostly clear at night,
• Mostly sunny and a bit cooler Monday with a slight (20%) chance of afternoon showers, partly cloudy with a slight (20%) chance of evening rain, just partly cloudy late Monday night,
• Then partly cloudy and a bit cooler Tuesday with a slight (20%) chance of rain in the afternoon.
• highs 88-94 cooling to 82 Tuesday lows 58-62 cooling back to 58 Monday night. (seasonal averages high 67 low 43)

__________

Home Wood Heating Advisory:

Posted Daily

Eugene-Springfield: GREEN– Burning is Allowed.

Oakridge: GREEN– Burning is Allowed.

*Note: Pellet stoves may be used anytime if they produce no visible emissions.

Data courtesy of Lane Regional Air Protection Agency (LRAPA

__________

Eugene-Springfield Pollen Count:

Forecast for the Umpqua Valley including Roseburg:

• Mostly cloudy start, partly cloudy and a bit warmer with a slight (20%) chance of thunderstorms this afternoon (under .01 in. of rain possible), mostly cloudy tonight,
• AM clouds, sunny and a bit warmer Thursday afternoon, mostly clear Thursday night,
• Mostly sunny and a bit warmer Friday, then clear Friday night.
• highs 70-83 lows 47-54.
• Sunny and a bit warmer Saturday, clear Saturday night,
• Sunny and a bit warmer Sunday, mostly clear at night,
• Sunny and a bit cooler Monday and Tuesday, mostly clear Monday night.
• highs 92-98 cooling to 85 Tuesday lows near 60. (seasonal averages high 70 low 47)

.

___________

Forecast for The South Oregon Coast Including Coos Bay and North Bend

• Mostly cloudy start, partly cloudy with a slight (20%) chance of thunderstorms this afternoon, mostly cloudy tonight,
• Mostly cloudy start, sunny and a bit warmer Thursday afternoon, partly cloudy in the evening, mostly clear late at night,
• Some AM clouds, sunny and a bit warmer Friday, then clear Friday night.
• highs 60-67 lows 44-48.
• Sunny and a bit warmer Saturday, clear Saturday night,
• Sunny and a bit warmer Sunday, mostly clear at night,
• Mostly sunny and a bit cooler Monday, partly cloudy with a slight (20%) chance of evening showers, mostly clear Monday night,
• Then sunny and a bit cooler Tuesday.
• highs 80-88 cooling to 67 Tuesday lows 60-52. (seasonal averages high 60 low 47)

__________

Forecast for the Northern Oregon Cascades including the Cascades in Lane County:

• Mostly sunny start, a mix of clouds and sun and a bit warmer with a (40%) chance of showers and a slight (20%) chance of thunderstorms this afternoon (0.50 in. of rain possible, more in storms), (40%) chance of evening rain and thunderstorms, just mostly cloudy late tonight,
• Partly cloudy and a bit warmer Thursday afternoon, partly cloudy at night,
• Mostly sunny and a bit warmer Friday, then clear Friday night.
• snow level 6,500 ft. today, 7,000 ft. tonight, free air freezing level 9,000 ft. Thursday, 10,000 ft. Thursday night, 11,000 ft. Friday, then 13,000 ft. Friday night.
• highs 53-68 lows 35-43.
• Sunny and a bit warmer Saturday, clear Saturday night,
• Mostly sunny and a bit warmer Sunday, partly cloudy with a slight (20%) chance of evening rain, just partly cloudy late at night,
• AM sun, a mix of clouds and sun with a (40%) chance of rain Monday afternoon, partly cloudy with a (40%) chance of evening rain, just partly cloudy late Monday night,
• Then partly cloudy and a bit cooler with a (30%) chance of rain Tuesday afternoon.
• free air freezing level 14,000 ft. Saturday, 15,000 ft. Saturday night, 14,000 ft. Sunday, then snow level above 8,000 ft. Sunday night through Tuesday.
• highs 72-75 cooling to 69 Tuesday lows 47-45.

Here is my new weekly weather quiz question. What is a “Lightning Channel?

_________________

An Upper Level Low  (“U” shape) is moving eastward and will weaken the moisture flow to the Pacific Northwest to be replaced by a High Pressure Ridge (“Arch” shape). The graphics for days 1-3  show the frontal system, show no frontal systems approaching the Pacific Northwest. The graphics for days 3-7  Friday through next Tuesday show a quiet weather pattern with a frontal system lingering offshore next Tuesday.

________________

Air Quality Index:

Eugene/Springfield: The Air Quality Index is 32 in the good category measuring Ozone.

Oakridge: The Air Quality Index is 5 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 32 in the Good category measuring Ozone.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

________________

ADVISORIES:

• A FLOOD WARNING IS IN EFFECT UNTIL EARLY THURSDAY MORNING FOR THE JOHN DAY RIVER AT SERVICE CREEK AFFECTING WHEELER COUNTY DUE TO RAIN AND SNOW MELT.
• A FLOOD WARNING IS IN EFFECT FOR THE SILVIES RIVER NEAR BURNS AFFECTING HARNEY  COUNTY UNTIL   WEDNESDAY EVENING DUE TO RAIN AND SNOW MELT.

HEALTH ADVISORIES:

Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:

• Mostly clear tonight,
• AM sun with a slight (20%) chance of rain, partly cloudy with a (30%) chance of showers and a slight (20%) chance of thunderstorms and a bit warmer Wednesday afternoon (under 0.10 in. of rain possible), partly cloudy Wednesday night,
• A mix of clouds and sun and a bit warmer Thursday, mostly clear at night,
• Mostly sunny and a bit warmer Friday, then mostly clear Friday night.
• lows 42-53 highs 70-80.
• Sunny and a bit warmer Saturday, clear Saturday night,
• Sunny and a bit warmer Sunday, mostly clear at night,
• Mostly sunny and a bit cooler Monday with a slight (20%) chance of afternoon showers, partly cloudy with a slight (20%) chance of evening rain, just partly cloudy late Monday night,
• Then partly cloudy and a bit cooler Tuesday with a slight (20%) chance of rain in the afternoon.
• highs 88-94 cooling to 82 Tuesday lows 58-62 cooling back to 58 Monday night. (seasonal averages high 67 low 43)

__________

Home Wood Heating Advisory:

Posted Daily

Eugene-Springfield: GREEN– Burning is Allowed.

Oakridge: GREEN– Burning is Allowed.

*Note: Pellet stoves may be used anytime if they produce no visible emissions.

Data courtesy of Lane Regional Air Protection Agency (LRAPA

__________

Eugene-Springfield Pollen Count:

Forecast for the Umpqua Valley including Roseburg:

• Mostly clear this evening, becoming mostly cloudy tonight with areas of coastal fog while patchy inland fog late tonight,
• Mostly cloudy start, partly cloudy and a bit warmer with a slight (20%) chance of thunderstorms Wednesday afternoon (under .01 in. of rain possible), mostly cloudy Wednesday night,
• AM clouds, sunny and a bit warmer Thursday afternoon, mostly clear Thursday night,
• Mostly sunny and a bit warmer Friday, then clear Friday night.
• lows 46-54 highs 70-83.
• Sunny and a bit warmer Saturday, clear Saturday night,
• Sunny and a bit warmer Sunday, mostly clear at night,
• Sunny and a bit cooler Monday and Tuesday, mostly clear Monday night.
• highs 92-98 cooling to 85 Tuesday lows near 60. (seasonal averages high 70 low 47)

.

___________

Forecast for The South Oregon Coast Including Coos Bay and North Bend

• Mostly clear with a slight (20%) chance of evening thunderstorms, becoming partly cloudy late tonight,
• Mostly cloudy start, partly cloudy with a slight (20%) chance of thunderstorms Wednesday afternoon, mostly cloudy Wednesday night,
• Mostly cloudy start, sunny and a bit warmer Thursday afternoon, partly cloudy in the evening, mostly clear late at night,
• Some AM clouds, sunny and a bit warmer Friday, then clear Friday night.
• lows 43-48 highs 60-67.
• Sunny and a bit warmer Saturday, clear Saturday night,
• Sunny and a bit warmer Sunday, mostly clear at night,
• Mostly sunny and a bit cooler Monday, partly cloudy with a slight (20%) chance of evening showers, mostly clear Monday night,
• Then sunny and a bit cooler Tuesday.
• highs 80-88 cooling to 67 Tuesday lows 60-52. (seasonal averages high 60 low 47)

__________

Forecast for the Northern Oregon Cascades including the Cascades in Lane County:

• Partly cloudy with a good (50%) chance of evening rain and slight (20%) chance of thunderstorms (under 0.10 in. of rain possible, more in storms), just partly cloudy late tonight,
• Mostly sunny start, a mix of clouds and sun and a bit warmer with a (40%) chance of showers and a slight (20%) chance of thunderstorms Wednesday (0.50 in. of rain possible, more in storms), (40%) chance of evening rain and thunderstorms, just mostly cloudy late Wednesday night,
• Partly cloudy and a bit warmer Thursday afternoon, partly cloudy at night,
• Mostly sunny and a bit warmer Friday, then clear Friday night.
• snow level 6,500 ft. tonight and Wednesday, 7,000 ft. Wednesday night, free air freezing level 9,000 ft. Thursday, 10,000 ft. Thursday night, 11,000 ft. Friday, then 13,000 ft. Friday night.
•  lows 33-43 highs 53-68.
• Sunny and a bit warmer Saturday, clear Saturday night,
• Mostly sunny and a bit warmer Sunday, partly cloudy with a slight (20%) chance of evening rain, just partly cloudy late at night,
• AM sun, a mix of clouds and sun with a (40%) chance of rain Monday afternoon, partly cloudy with a (40%) chance of evening rain, just partly cloudy late Monday night,
• Then partly cloudy and a bit cooler with a (30%) chance of rain Tuesday afternoon.
• free air freezing level 14,000 ft. Saturday, 15,000 ft. Saturday night, 14,000 ft. Sunday, then snow level above 8,000 ft. Sunday night through Tuesday.
• highs 72-75 cooling to 69 Tuesday lows 47-45.

Here is my new weekly weather quiz question. What is a “Lightning Channel?

_________________

An Upper Level Low  is moving eastward and will weaken the moisture flow to the Pacific Northwest. A surface low with it associated cold front are shown approaching the California coast keeping the weaker flow of coastal moisture still aimed our way. The graphics for days 1-3  show the frontal system, as described above, sliding southward away from us.. The graphics for days 3-7  Friday through next Tuesday show a quiet weather pattern with a frontal system lingering offshore.

________________

Air Quality Index:

Eugene/Springfield: The Air Quality Index is 28 in the good category measuring Ozone.

Oakridge: The Air Quality Index is 6 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 19 in the Good category measuring Ozone.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

________________

ADVISORIES:

• A FLOOD WARNING IS IN EFFECT UNTIL THURSDAY MORNING FOR THE JOHN DAY RIVER AT SERVICE CREEK AFFECTING WHEELER COUNTY DUE TO RAIN AND SNOW MELT.
• A FLOOD WARNING IS IN EFFECT FOR THE SILVIES RIVER NEAR BURNS AFFECTING HARNEY  COUNTY UNTIL   WEDNESDAY EVENING DUE TO RAIN AND SNOW MELT.
• A FLOOD ADVISORY IS IN EFFECT FOR BAKER COUNTY UNTIL 6 PM MDT TODAY DUE TO RAIN AND SNOW MELT.

HEALTH ADVISORIES:

Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:

• Sunny and warmer today, mostly clear tonight,
• Sunny and a bit warmer Wednesday, partly cloudy at night,
• Sunny and a bit warmer Thursday, then partly cloudy Thursday night.
• highs 65-72 lows 42-47.
• Partly cloudy and a bit warmer Friday, mostly clear Friday night,
• Mostly sunny and a bit warmer Saturday, clear at night,
• Mostly sunny and a bit warmer Sunday, mostly clear Sunday night,
• Then mostly sunny and a bit cooler with a slight (20%) chance of showers Monday afternoon.
• highs 80-93 cooling to 86 Monday lows 52-59. (seasonal averages high 67 low 43)

__________

Home Wood Heating Advisory:

Posted Daily

Eugene-Springfield: GREEN– Burning is Allowed.

Oakridge: GREEN– Burning is Allowed.

*Note: Pellet stoves may be used anytime if they produce no visible emissions.

Data courtesy of Lane Regional Air Protection Agency (LRAPA

__________

Eugene-Springfield Pollen Count:

Forecast for the Umpqua Valley including Roseburg:

• Some AM clouds, sunny and warmer this afternoon, mostly clear with a slight (20%) chance of evening showers, just mostly clear late tonight,
• Mostly sunny and a bit warmer Wednesday with a slight (20%) chance of afternoon showers, partly cloudy with a slight (20%) chance of evening showers, just mostly cloudy late at night,
• Mostly cloudy start, sunny and a bit warmer Thursday afternoon, then mostly clear Thursday night.
• highs 68-75 lows 44-49.
• Mostly sunny and a bit warmer Friday, clear Friday night,
• Sunny and a bit warmer Saturday, clear at night,
• Sunny and a bit warmer Sunday, mostly clear Sunday night,
• Some AM clouds, then mostly sunny and a bit cooler with a slight (20%) chance  of showers Monday afternoon.
• highs 83-95 cooling to 87 Monday lows 54-60. (seasonal averages high 70 low 47)

.

___________

Forecast for The South Oregon Coast Including Coos Bay and North Bend

• Some AM clouds, sunny and warmer this afternoon, mostly clear tonight,
• Sunny and a bit cooler Wednesday, partly cloudy in the evening, mostly cloudy late at night,
• Partly cloudy and a bit warmer Thursday, then partly cloudy Thursday night.
• highs 64-62 warming back to 64 Thursday lows 42-45.
• Sunny and a bit warmer Friday and Saturday, clear both nights,
• Sunny and a bit warmer Sunday, mostly clear Sunday night,
• Some AM clouds, then sunny and a bit cooler Monday afternoon.
• highs 67-84 cooling to 72 Monday lows 48-59 cooling to 54 Sunday night. (seasonal averages high 60 low 47)

__________

Forecast for the Northern Oregon Cascades including the Cascades in Lane County:

• Partly cloudy with slight (20%) chance of showers and a bit warmer this afternoon, a slight (20%) chance of evening showers, just partly cloudy late tonight,
• Mostly sunny start, a mix of clouds and sun and a bit warmer with a (40%) chance of showers and a slight (20%) chance of thunderstorms Wednesday afternoon, partly cloudy with a slight (20%) chance of evening showers, just party cloudy late at night,
• Some AM clouds, sunny and a bit warmer Thursday afternoon, then partly cloudy Thursday night.
• snow level 4,500 ft. tonight, 6,000 ft. Tuesday afternoon, 6,500 ft. Tuesday night, 6,000 ft. Wednesday, 7,000 ft. Wednesday night, free air freezing level 9,000 ft. Thursday, then 10,000 ft. Thursday night.
• highs 50-59 lows 32-38.
• Mostly sunny and a bit warmer Friday, mostly clear Friday night,
• Mostly sunny and a bit warmer Saturday, clear at night,
• Mostly sunny and a bit warmer Sunday, partly cloudy with a slight (20%) chance of evening showers, just partly cloudy late Sunday night,
• AM sun, then partly cloudy and a bit cooler a (40%) chance of showers Monday afternoon.
• free air freezing level 11,000 ft. Friday, 13,000 ft. Friday night, 14,000 ft. Saturday, 15,000 ft. Saturday night, 14,000 ft. Sunday, then snow level above 8,000 ft. Sunday night and Monday.
• highs 68-74 cooling to 72 Monday lows 38-48.

Here is my new weekly weather quiz question. What is a “Lightning Channel?

_________________

An Upper Level Low  is moving eastward and will weaken the moisture flow to the Pacific Northwest. A surface low with it associated cold front are shown approaching the California coast keeping the weaker flow of coastal moisture still aimed our way. The graphics for days 1-3  show the frontal system, as described above, apparently falling as part as it makes landfall. The graphics for days 3-7  Thursday through next Monday show a quiet weather pattern.

________________

Air Quality Index:

Eugene/Springfield: The Air Quality Index is 31 in the good category measuring Ozone.

Oakridge: The Air Quality Index is 7 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 30 in the Good category measuring Ozone.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

________________

ADVISORIES:

• A FLOOD WARNING IS IN EFFECT UNTIL THURSDAY MORNING FOR THE JOHN DAY RIVER AT SERVICE CREEK AFFECTING WHEELER COUNTY DUE TO RAIN AND SNOW MELT.
• A FLOOD WARNING IS IN EFFECT FOR THE SILVIES RIVER NEAR BURNS AFFECTING HARNEY  COUNTY UNTIL   WEDNESDAY EVENING DUE TO RAIN AND SNOW MELT.
• A FLOOD ADVISORY IS IN EFFECT FOR BAKER COUNTY UNTIL 6 PM MDT TUESDAY DUE TO RAIN AND SNOW MELT.
• A FLOOD ADVISORY IS IN EFFECT UNTIL 7:45 PM THIS EVENING FOR CLACKAMAS COUNTY.

HEALTH ADVISORIES:

Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:

• Mostly cloudy with a good (50%) chance of evening showers and a slight (20%) chance of thunderstorms (small hail possible), becoming partly cloudy late tonight (under 0.10 in. of rain possible, more in storms),
• Partly cloudy and warmer Tuesday, mostly clear Tuesday night,
• Mostly sunny and a bit warmer Wednesday, partly cloudy at night,
• Partly cloudy Thursday, then partly cloudy Thursday night.
• lows 42-47 highs 65-72.
• Partly cloudy and a bit warmer Friday, mostly clear Friday night,
• Mostly sunny and a bit warmer Saturday, clear at night,
• Mostly sunny and a bit warmer Sunday, mostly clear Sunday night,
• Then mostly sunny and a bit cooler with a slight (20%) chance of showers Monday afternoon.
• highs 80-93 cooling to 86 Monday lows 52-59. (seasonal averages high 67 low 43)

__________

Home Wood Heating Advisory:

Posted Daily

Eugene-Springfield: GREEN– Burning is Allowed.

Oakridge: GREEN– Burning is Allowed.

*Note: Pellet stoves may be used anytime if they produce no visible emissions.

Data courtesy of Lane Regional Air Protection Agency (LRAPA

__________

Eugene-Springfield Pollen Count:

Forecast for the Umpqua Valley including Roseburg:

• Mostly cloudy with a good (50%) chance of evening showers and a slight (20%) chance of thunderstorms, a good (50%) chance of showers tonight (under 0.10 in. of rain possible),
• Some AM clouds, sunny and warmer Tuesday, mostly clear with a slight (20%) chance of evening showers, just mostly clear late Tuesday night,
• Mostly sunny and a bit warmer Wednesday with a slight (20%) chance of afternoon showers, partly cloudy with a slight (20%) chance of evening showers, just mostly cloudy late at night,
• Mostly cloudy start, sunny and a bit warmer Thursday afternoon, then mostly clear Thursday night.
• lows 43-49 highs 68-75.
• Mostly sunny and a bit warmer Friday, clear Friday night,
• Sunny and a bit warmer Saturday, clear at night,
• Sunny and a bit warmer Sunday, mostly clear Sunday night,
• Some AM clouds, then mostly sunny and a bit cooler with a slight (20%) chance  of showers Monday afternoon.
• highs 83-95 cooling to 87 Monday lows 54-60. (seasonal averages high 70 low 47)

.

___________

Forecast for The South Oregon Coast Including Coos Bay and North Bend

• Partly cloudy with a slight (20%) chance  of evening coastal showers while a slight (20%) chance of inland evening showers and a slight (20%) chance of thunderstorms and a slight (20%) chance of inland showers tonight,
• Some AM clouds, sunny and warmer Tuesday afternoon, mostly clear Tuesday night,
• Sunny and a bit cooler Wednesday, partly cloudy in the evening, mostly cloudy late at night,
• Partly cloudy and a bit warmer Thursday, then partly cloudy Thursday night.
• lows 42-45 highs 64-62 warming back to 64 Thursday.
• Sunny and a bit warmer Friday and Saturday, clear both nights,
• Sunny and a bit warmer Sunday, mostly clear Sunday night,
• Some AM clouds, then sunny and a bit cooler Monday afternoon.
• highs 67-84 cooling to 72 Monday lows 48-59 cooling to 54 Sunday night. (seasonal averages high 60 low 47)

__________

Forecast for the Northern Oregon Cascades including the Cascades in Lane County:

• Mostly cloudy with evening showers, snow showers likely (70%) and a slight (20%) of thunderstorms, a slight (20%) chance of showers late tonight (0.25 in. of rain possible, evening small hail possible, 1-3 in. of snow possible),
• Partly cloudy with slight (20%) chance of showers and a bit warmer Tuesday afternoon, a slight (20%) chance of evening showers, just partly cloudy late Tuesday night,
• Mostly sunny start, a mix of clouds and sun and a bit warmer with a (40%) chance of showers and a slight (20%) chance of thunderstorms Wednesday afternoon, partly cloudy with a slight (20%) chance of evening showers, just party cloudy late at night,
• Some AM clouds, sunny and a bit warmer Thursday afternoon, then partly cloudy Thursday night.
• snow level 4,500 ft. tonight, 6,000 ft. Tuesday afternoon, 6,500 ft. Tuesday night, 6,000 ft. Wednesday, 7,000 ft. Wednesday night, free air freezing level 9,000 ft. Thursday, then 10,000 ft. Thursday night.
• lows 28-38 highs 50-59.
• Mostly sunny and a bit warmer Friday, mostly clear Friday night,
• Mostly sunny and a bit warmer Saturday, clear at night,
• Mostly sunny and a bit warmer Sunday, partly cloudy with a slight (20%) chance of evening showers, just partly cloudy late Sunday night,
• AM sun, then partly cloudy and a bit cooler a (40%) chance of showers Monday afternoon.
• free air freezing level 11,000 ft. Friday, 13,000 ft. Friday night, 14,000 ft. Saturday, 15,000 ft. Saturday night, 14,000 ft. Sunday, then snow level above 8,000 ft. Sunday night and Monday.
• highs 68-74 cooling to 72 Monday lows 38-48.

Here is my new weekly weather quiz question. What is a “Lightning Channel?

_________________

An Upper Level Low  and surface low with it associated cold front are approaching the California coast keeping the weaker flow of coastal moisture still aimed our way. The graphics for days 1-3  show the frontal system, as described above ,apparently falling as part as it makes landfall. The graphics for days 3-7  Thursday through next Monday show a quiet weather pattern, but a frontal system can be seen offshore to our west Sunday.

________________

Air Quality Index:

Eugene/Springfield: The Air Quality Index is 16 in the Good category measuring Ozone.

Oakridge: The Air Quality Index is 8 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 21 in the Good category measuring Ozone.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

________________

ADVISORIES:

• A FLOOD WARNING IS IN EFFECT UNTIL LATE THIS EVENING FOR THE JOHN DAY RIVER AT SERVICE CREEK AFFECTING WHEELER COUNTY DUE TO RAIN AND SNOW MELT.
• A FLOOD ADVISORY IS IN EFFECT UNTIL TUESDAY AFTERNOON FOR THE SPRAGUE RIVER NEAR BEATY AFFECTING KLAMATH COUNTY DUE TO RAIN AND SNOW MELT.
• A FLOOD WARNING IS IN EFFECT FOR THE SILVIES RIVER NEAR BURNS AFFECTING HARNEY  COUNTY UNTIL   WEDNESDAY AFTERNOON DUE TO RAIN AND SNOW MELT.
• A FLOOD ADVISORY IS IN EFFECT FOR BAKER COUNTY UNTIL 6 PM MDT TUESDAY DUE TO RAIN AND SNOW MELT.

HEALTH ADVISORIES:

Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:

• Mostly cloudy with AM rain, showers and a bit cooler this afternoon (0.25 in. of rain possible), a slight (20%) chance of evening showers, partly cloudy late tonight (under 0.10 in. of rain possible),
• Partly cloudy with patchy AM fog, partly cloudy and a bit warmer Tuesday afternoon, mostly clear at night,
• Mostly sunny and a bit warmer Wednesday, then partly cloudy Wednesday night.
• highs 57-65 lows 42-46.
• Partly cloudy and a bit warmer Thursday, partly cloudy Thursday night,
• Some AM clouds, mostly sunny and a bit warmer Friday afternoon, mostly clear at night,
• Mostly sunny and a bit warmer Saturday and Sunday, clear Saturday night.
• highs 74-88 lows 47-57. (seasonal averages high 67 low 43)

__________

Home Wood Heating Advisory:

Posted Daily

Eugene-Springfield: GREEN– Burning is Allowed.

Oakridge: GREEN– Burning is Allowed.

*Note: Pellet stoves may be used anytime if they produce no visible emissions.

Data courtesy of Lane Regional Air Protection Agency (LRAPA

__________

Eugene-Springfield Pollen Count:

Forecast for the Umpqua Valley including Roseburg:

• AM showers, a bit cooler with showers likely (70%) and a slight (20%) chance of thunderstorms this afternoon (0.10 in. of rain possible), a (30%) chance of evening showers and a slight (20%) chance of thunderstorms late tonight (under 0.10 in. of rain possible),
• Partly cloudy and warmer Tuesday, mostly clear at night,
• Some AM clouds, sunny and a bit warmer Wednesday afternoon, then partly cloudy Wednesday night.
• highs 56-72 lows 43-48.
• Mostly sunny and a bit warmer Thursday, mostly clear Thursday night,
• Sunny and a bit warmer Friday and Saturday, clear both nights,
• AM sun, then partly cloudy and a bit cooler with a slight (20%) chance of showers and thunderstorms Sunday afternoon.
• highs 77-89 cooling to 87 Sunday lows 50-57. (seasonal averages high 70 low 47)

.

___________

Forecast for The South Oregon Coast Including Coos Bay and North Bend

• Mostly cloudy with AM showers likely (70%), a good (50%) chance of showers this afternoon (0.10 in. of rain possible), partly cloudy tonight with a slight (20%) chance of evening inland showers,
• Some AM clouds, sunny and warmer Tuesday afternoon, mostly clear at night,
• Some AM clouds, sunny Wednesday afternoon, partly cloudy in the evening, then mostly cloudy late Wednesday night.
• highs 56-62 lows 42-44.
• Mostly sunny and a bit warmer Thursday, mostly clear Thursday night,
• Sunny and a bit warmer Friday and Saturday, clear both nights,
• Sunny start, then partly cloudy and a bit warmer Sunday afternoon.
• highs 65-77 lows 45-54. (seasonal averages high 60 low 47)

__________

Forecast for the Northern Oregon Cascades including the Cascades in Lane County:

• Mostly cloudy with AM rain and snow showers, rain showers and snow showers likely (70%) with a slight (20%) chance of thunderstorms and a bit cooler this afternoon (0.50 in. of rain possible, small hail possible, 2 in. of snow possible), a good (50%) chance of evening rain and snow showers and a slight (20%) of thunderstorms, just mostly cloudy late tonight (0.25 in. of rain possible, evening small hail possible, 1 in. of snow possible),
• Partly cloudy with slight (20%) chance of showers and a bit warmer Tuesday afternoon, a slight (20%) chance of evening showers, just partly cloudy late at night,
• Mostly sunny start, partly cloudy and a bit warmer with a slight (20%) chance of showers and thunderstorms Wednesday afternoon, a slight (20%) chance of evening showers, then just cloudy late Wednesday night.
• snow level 4,500 ft. today and tonight, 6,000 ft. Tuesday afternoon, 6,000 ft. Tuesday night, 6,500 ft. Wednesday, then 7,000 ft Wednesday night.
• highs 40-55 lows 28-35.
• Some AM clouds, sunny and a bit warmer Thursday afternoon, partly cloudy Thursday night,
• Mostly sunny and a bit warmer Friday, mostly clear at night,
• Mostly sunny and a bit warmer Saturday, clear Saturday night,
• AM sun, then partly cloudy with a (30%) chance of showers Sunday afternoon.
• snow level free air freezing level 9,000 ft. Thursday, 10,000 ft. Thursday night,12,000 ft. Friday, 13,000 ft. Friday night, 14,000 ft. Saturday and Saturday night, then above 8,000 ft. Sunday.
• highs 62-72 lows 38-48.

Here is my weekly weather quiz question for the last time. What is the “Lifted Index? Here is the correct answer.  Lifted Index(abbrev. LI)- A common measure of atmospheric instability. Its value is obtained by computing the temperature that air near the ground would have if it were lifted to some higher level (around 18,000 feet, usually) and comparing that temperature to the actual temperature at that level. Negative values indicate instability – the more negative, the more unstable the air is, and the stronger the updrafts are likely to be with any developing thunderstorms. However there are no “magic numbers” or threshold LI values below which severe weather becomes imminent.

_________________

An Upper Level Low  and surface low with it associated cold front are approaching the California coast keeping the weaker flow of coastal moisture still aimed our way. The graphics for days 1-3  show the frontal system, as described above ,apparently falling as part as it makes landfall. The graphics for days 3-7  Wednesday through next Sunday show a quiet weather pattern, but a frontal system can be seen offshore to our west Sunday.

________________

Air Quality Index:

Eugene/Springfield: The Air Quality Index is 34 in the Good category measuring Ozone.

Oakridge: The Air Quality Index is 16 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 35 in the Good category measuring Ozone.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

________________

ADVISORIES:

• A FLOOD WARNING IS IN EFFECT UNTIL LATE MONDAY EVENING FOR THE JOHN DAY RIVER AT SERVICE CREEK AFFECTING WHEELER COUNTY DUE TO RAIN AND SNOW MELT.
• A FLOOD ADVISORY IS IN EFFECT UNTIL TUESDAY AFTERNOON FOR THE SPRAGUE RIVER NEAR BEATY AFFECTING KLAMATH COUNTY DUE TO RAIN AND SNOW MELT.
• A FLOOD WARNING IS IN EFFECT FOR THE SILVIES RIVER NEAR BURNS AFFECTING HARNEY  COUNTY UNTIL   WEDNESDAY AFTERNOON DUE TO RAIN AND SNOW MELT.
• A FLOOD ADVISORY IS IN EFFECT FOR BAKER COUNTY UNTIL 6 PM MDT TUESDAY DUE TO RAIN AND SNOW MELT.

HEALTH ADVISORIES:

Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:

• Mostly cloudy with rain likely (70%) late tonight (0.25 in. of rain possible),
• Mostly cloudy with AM rain, showers and a bit cooler Monday afternoon (0.25 in. of rain possible), a slight (20%) chance of evening showers, partly cloudy late Monday night (under 0.10 in. of rain possible),
• Partly cloudy with patchy AM fog, partly cloudy and a bit warmer Tuesday afternoon, mostly clear at night,
• Mostly sunny and a bit warmer Wednesday, then partly cloudy Wednesday night.
• lows 46-42 warming back to 46 Wednesday highs 57-65.
• Partly cloudy and a bit warmer Thursday, partly cloudy Thursday night,
• Some AM clouds, mostly sunny and a bit warmer Friday afternoon, mostly clear at night,
• Mostly sunny and a bit warmer Saturday and Sunday, clear Saturday night.
• highs 74-88 lows 47-57. (seasonal averages high 67 low 43)

__________

Home Wood Heating Advisory:

Posted Daily

Eugene-Springfield: GREEN– Burning is Allowed.

Oakridge: GREEN– Burning is Allowed.

*Note: Pellet stoves may be used anytime if they produce no visible emissions.

Data courtesy of Lane Regional Air Protection Agency (LRAPA

__________

Eugene-Springfield Pollen Count:

Forecast for the Umpqua Valley including Roseburg:

• Mostly cloudy with evening showers likely (70%), showers late tonight (0.25 in. of rain possible),
• AM showers, a bit cooler with showers likely (70%) and a slight (20%) chance of thunderstorms Monday afternoon (0.10 in. of rain possible), a (30%) chance of evening showers and a slight (20%) chance of thunderstorms late Monday night (under 0.10 in. of rain possible),
• Partly cloudy and warmer Tuesday, mostly clear at night,
• Some AM clouds, sunny and a bit warmer Wednesday afternoon, then partly cloudy Wednesday night.
• lows 44-48 highs 56-72.
• Mostly sunny and a bit warmer Thursday, mostly clear Thursday night,
• Sunny and a bit warmer Friday and Saturday, clear both nights,
• AM sun, then partly cloudy and a bit cooler with a slight (20%) chance of showers and thunderstorms Sunday afternoon.
• highs 77-89 cooling to 87 Sunday lows 50-57. (seasonal averages high 69 low 46)

.

___________

Forecast for The South Oregon Coast Including Coos Bay and North Bend:

• Mostly cloudy with evening coastal showers likely (70%) and showers late tonight while inland showers tonight (0.25 in. of rain possible),
• Mostly cloudy with AM showers likely (70%), a good (50%) chance of showers Monday afternoon (0.10 in. of rain possible), partly cloudy Monday night with a slight (20%) chance of evening inland showers,
• Some AM clouds, sunny and warmer Tuesday afternoon, mostly clear at night,
• Some AM clouds, sunny Wednesday afternoon, partly cloudy in the evening, then mostly cloudy late Wednesday night.
• lows 47-42 warming to 44 Wednesday night highs 56-62.
• Mostly sunny and a bit warmer Thursday, mostly clear Thursday night,
• Sunny and a bit warmer Friday and Saturday, clear both nights,
• Sunny start, then partly cloudy and a bit warmer Sunday afternoon.
• highs 65-77 lows 45-54. (seasonal averages high 59 low 47)

__________

Forecast for the Northern Oregon Cascades including the Cascades in Lane County:

• Partly cloudy with a good (50%) chance of evening showers, mostly cloudy with rain and snow late tonight (0.25 in. of rain possible, 1 in. of snow possible),
• Mostly cloudy with AM rain and snow showers, rain showers and snow showers likely (70%) with a slight (20%) chance of thunderstorms and a bit cooler Monday afternoon (0.50 in. of rain possible, small hail possible, 2 in. of snow possible), a good (50%) chance of evening rain and snow showers and a slight (20%) of thunderstorms, just mostly cloudy late Monday night (0.25 in. of rain possible, evening small hail possible, 1 in. of snow possible),
• Partly cloudy with slight (20%) chance of showers and a bit warmer Tuesday afternoon, a slight (20%) chance of evening showers, just partly cloudy late at night,
• Mostly sunny start, partly cloudy and a bit warmer with a slight (20%) chance of showers and thunderstorms Wednesday afternoon, a slight (20%) chance of evening showers, then just cloudy late Wednesday night.
• snow level 5,500 ft. tonight, 4,500 ft. Monday and Monday night, 6,000 ft. Tuesday afternoon, 6,000 ft. Tuesday night, 6,500 ft. Wednesday, then 7,000 ft Wednesday night.
• lows 32-28 warming to 35 Wednesday night highs 40-55.
• Some AM clouds, sunny and a bit warmer Thursday afternoon, partly cloudy Thursday night,
• Mostly sunny and a bit warmer Friday, mostly clear at night,
• Mostly sunny and a bit warmer Saturday, clear Saturday night,
• AM sun, then partly cloudy with a (30%) chance of showers Sunday afternoon.
• snow level free air freezing level 9,000 ft. Thursday, 10,000 ft. Thursday night,12,000 ft. Friday, 13,000 ft. Friday night, 14,000 ft. Saturday and Saturday night, then above 8,000 ft. Sunday.
• highs 62-72 lows 38-48.

Here is my weekly weather quiz question for the last time. What is the “Lifted Index? Here is the correct answer.  Lifted Index(abbrev. LI)- A common measure of atmospheric instability. Its value is obtained by computing the temperature that air near the ground would have if it were lifted to some higher level (around 18,000 feet, usually) and comparing that temperature to the actual temperature at that level. Negative values indicate instability – the more negative, the more unstable the air is, and the stronger the updrafts are likely to be with any developing thunderstorms. However there are no “magic numbers” or threshold LI values below which severe weather becomes imminent.

_________________

An Upper Level Low  and surface low with it associated cold front are approaching the California coast keeping the weaker flow of coastal moisture still aimed our way. The graphics for days 1-3  show the frontal system, as described above ,apparently falling as part as it makes landfall. The graphics for days 3-7  Wednesday through next Sunday show a quiet weather pattern, but a frontal system can be seen offshore to our west Saturday.

________________

Air Quality Index:

Eugene/Springfield: The Air Quality Index is 35 in the Good category measuring Ozone.

Oakridge: The Air Quality Index is 10 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 33 in the Good category measuring Ozone.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

________________

ADVISORIES:

• A FLOOD WARNING IS IN EFFECT UNTIL LATE NEXT WEDNESDAY EVENING FOR THE JOHN DAY RIVER AT SERVICE CREEK AFFECTING WHEELER COUNTY DUE TO RAIN AND SNOW MELT.
• A FLOOD ADVISORY IS IN EFFECT UNTIL 11AM TODAY FOR THE SPRAGUE RIVER NEAR BEATY AFFECTING KLAMATH COUNTY DUE TO RAIN AND SNOW MELT.
• A FLOOD WARNING IS IN EFFECT FOR THE SILVIES RIVER NEAR BURNS AFFECTING HARNEY  COUNTY UNTIL LATE NEXT WEDNESDAY EVENING DUE TO RAIN AND SNOW MELT.
• A FLOOD ADVISORY IS IN EFFECT FOR BAKER COUNTY UNTIL 5 PM MDT TODAY DUE TO RAIN AND SNOW MELT.

HEALTH ADVISORIES:

Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:

• A mix of clouds and sun with a good (50%) chance of showers this afternoon, mostly cloudy with a good (50%) chance of showers late tonight (0.25 in. of rain possible),
• Mostly cloudy with showers likely (70%) and a bit cooler Monday (0.25 in. of rain possible), a good (50%) chance of evening showers, a slight (20%) chance of showers late at night (under 0.10 in. of rain possible),
• A mix of clouds and sun and a bit warmer with a slight (20%) chance of showers Tuesday, then mostly clear Tuesday night.
• highs 62-56 warming to 65 Tuesday lows 44-42.
• Mostly sunny and a bit warmer Wednesday, partly cloudy Wednesday night,
• Partly cloudy and a bit warmer Thursday, partly cloudy at night,
• Mostly sunny and a bit warmer Friday and Saturday, mostly clear Friday night.
• highs 72-83 lows 45-52. (seasonal averages high 67 low 43)

__________

Home Wood Heating Advisory:

Posted Daily

Eugene-Springfield: GREEN– Burning is Allowed.

Oakridge: GREEN– Burning is Allowed.

*Note: Pellet stoves may be used anytime if they produce no visible emissions.

Data courtesy of Lane Regional Air Protection Agency (LRAPA

__________

Eugene-Springfield Pollen Count:

Forecast for the Umpqua Valley including Roseburg:

• Mostly cloudy with a slight (20%) chance of showers and a bit warmer this afternoon, cloudy with a good (50%) chance of evening showers, showers late tonight (0.50 in. of rain possible),
• AM showers likely (70%), a bit cooler with showers likely (70%) and a slight (20%) chance of thunderstorms Monday afternoon (0.25 in. of rain possible), a (30%) chance of showers at night (under 0.10 in. of rain possible),
• Partly cloudy and warmer with a slight (20%) chance of showers Tuesday afternoon, mostly clear Tuesday night.
• highs 62-57 warming to 67 Tuesday lows 45-43 warming back to 45 Tuesday night.
• Mostly sunny and a bit warmer Wednesday, partly cloudy Wednesday night,
• Mostly sunny and a bit warmer Thursday, mostly clear at night,
• Sunny and a bit warmer Friday, clear Friday night,
• Then sunny and a bit warmer Saturday.
• highs 72-87 lows 47-54. (seasonal averages high 69 low 46)

.

___________

Forecast for The South Oregon Coast Including Coos Bay and North Bend:

• Mostly cloudy with a slight (20%) chance of showers and slightly warmer today, evening showers likely (70%), showers late tonight (0.25 in. of rain possible),
• Mostly cloudy with a good (50%) of coastal showers while inland AM showers likely (70%) and a good (50%) chance of inland showers Monday afternoon (0.10 in. of rain possible), a slight (20%) chance of showers at night,
• Partly cloudy and warmer Tuesday, then mostly clear Tuesday night,
• highs 58-62 lows 46-43.
• Mostly sunny and a bit warmer Wednesday, partly cloudy Wednesday night,
• Mostly sunny and a bit warmer Thursday, mostly clear at night,
• Then sunny and a bit warmer Friday and Saturday, clear Friday night.
• highs 62-73 lows 43-48. (seasonal averages high 59 low 47)

__________

Forecast for the Northern Oregon Cascades including the Cascades in Lane County:

• A mix of clouds and sun with a slight (20%) chance of AM rain and snow showers, a good (50%) chance of showers and a bit cooler this afternoon (0.10 in. of rain possible, little or no snow accumulation expected), a good (50%) chance of evening showers, rain and snow likely (70%) late tonight (under 0.10 in. of rain possible),
• Mostly cloudy and a bit cooler with rain and snow showers Monday (snow possibly heavy in the afternoon), evening rain and snow showers likely (70%), then a slight (20%) chance of rain and snow showers  late at night,
• Clouds and sun with slight (20%)chance of AM rain and snow showers, a (40%) chance of showers and a bit warmer Tuesday afternoon, partly cloudy with a slight (20%) chance of evening showers, then just partly cloudy late Tuesday night.
• snow level 4,000 ft. rising to 5,500 ft. this afternoon, 5,500 ft. tonight, then 4,500 ft. Monday and Monday night, 5,000 ft. Tuesday, then 5,500 ft. Tuesday night.
• highs 45-42 warming to 47 Tuesday lows 32-29.
• Mostly sunny and a bit warmer with a slight (20%) chance of showers Wednesday afternoon, partly cloudy Wednesday night,
• Some AM clouds, sunny and a bit warmer Thursday afternoon, mostly clear Thursday night,
• Partly cloudy and a bit warmer Friday, partly cloudy Friday night,
• Then mostly sunny and a bit warmer Saturday.
• snow level  6,000 ft. Wednesday, free air freezing level 9,000 ft Wednesday night and Thursday, 10,000 ft. Thursday night, 12,000 ft. Friday, then 13,000 ft. Saturday.
• highs 55-70 lows 34-42.

Here is my weekly weather quiz question for the last time. What is the “Lifted Index? Here is the correct answer.  Lifted Index(abbrev. LI)- A common measure of atmospheric instability. Its value is obtained by computing the temperature that air near the ground would have if it were lifted to some higher level (around 18,000 feet, usually) and comparing that temperature to the actual temperature at that level. Negative values indicate instability – the more negative, the more unstable the air is, and the stronger the updrafts are likely to be with any developing thunderstorms. However there are no “magic numbers” or threshold LI values below which severe weather becomes imminent.

_________________

An Upper Level Low  and surface low with it associated cold front are approaching the California coast keeping the weaker flow of coastal moisture still aimed our way. The graphics for days 1-3  show the frontal system, as described above ,apparently falling as part as it makes landfall. The graphics for days 3-7  Tuesday through next Saturday show a quiet weather pattern, but a frontal system can be seen offshore to our west Saturday.

________________

Air Quality Index:

Eugene/Springfield: The Air Quality Index is 32 in the Good category measuring Ozone.

Oakridge: The Air Quality Index is 6 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 31 in the Good category measuring Ozone.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

________________

ADVISORIES:

• A FLOOD WARNING IS IN EFFECT UNTIL LATE NEXT WEDNESDAY EVENING FOR THE JOHN DAY RIVER AT SERVICE CREEK AFFECTING WHEELER COUNTY DUE TO RAIN AND SNOW MELT.
• A FLOOD ADVISORY IS IN EFFECT UNTIL TUESDAY AFTERNOON FOR THE SPRAGUE RIVER NEAR BEATY AFFECTING KLAMATH COUNTY DUE TO RAIN AND SNOW MELT.
• A FLOOD WARNING IS IN EFFECT FOR THE SILVIES RIVER NEAR BURNS AFFECTING HARNEY  COUNTY UNTIL LATE NEXT WEDNESDAY EVENING DUE TO RAIN AND SNOW MELT.
• A FLOOD ADVISORY IS IN EFFECT FOR BAKER COUNTY UNTIL 5 PM MDT SUNDAY DUE TO RAIN AND SNOW MELT.

HEALTH ADVISORIES:

Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:

• Partly cloudy with a slight (20%) chance of evening showers, just partly cloudy late tonight (under 0.10 in. of rain possible),
• A mix of clouds and sun and slightly cooler with a slight (20%) chance of showers Sunday afternoon, mostly cloudy with a slight (20%) chance of evening showers, a good (50%) chance of showers late Sunday night (0.25 in. of rain possible),
• Mostly cloudy with showers likely (70%) and a bit cooler Monday (0.25 in. of rain possible), a good (50%) chance of evening showers, a slight (20%) chance of showers late at night (under 0.10 in. of rain possible),
• A mix of clouds and sun and a bit warmer with a slight (20%) chance of showers Tuesday, then mostly clear Tuesday night.
• lows 42-44 cooling back to 42 Tuesday night highs 62-56 warming to 65 Tuesday.
• Mostly sunny and a bit warmer Wednesday, partly cloudy Wednesday night,
• Partly cloudy and a bit warmer Thursday, partly cloudy at night,
• Mostly sunny and a bit warmer Friday and Saturday, mostly clear Friday night.
• highs 72-83 lows 45-52. (seasonal averages high 67 low 43)

__________

Home Wood Heating Advisory:

Posted Daily

Eugene-Springfield: GREEN– Burning is Allowed.

Oakridge: GREEN– Burning is Allowed.

*Note: Pellet stoves may be used anytime if they produce no visible emissions.

Data courtesy of Lane Regional Air Protection Agency (LRAPA

__________

Eugene-Springfield Pollen Count:

Forecast for the Umpqua Valley including Roseburg:

• Mostly cloudy with a slight (20%) chance of evening thunderstorms, partly cloudy with a slight (20%) chance of showers tonight (0.10 in. of rain possible),
• Mostly cloudy with a slight (20%) chance of showers and a bit warmer Sunday afternoon, cloudy with a good (50%) chance of evening showers, showers late Sunday night (0.50 in. of rain possible),
• AM showers likely (70%), a bit cooler with showers likely (70%) and a slight (20%) chance of thunderstorms Monday afternoon (0.25 in. of rain possible), a (30%) chance of showers at night (under 0.10 in. of rain possible),
• Partly cloudy and warmer with a slight (20%) chance of showers Tuesday afternoon, mostly clear Tuesday night.
• lows 42-45 cooling to 43 Monday night warming to 45 Tuesday night highs 62-57 warming to 67 Tuesday.
• Mostly sunny and a bit warmer Wednesday, partly cloudy Wednesday night,
• Mostly sunny and a bit warmer Thursday, mostly clear at night,
• Sunny and a bit warmer Friday, clear Friday night,
• Then sunny and a bit warmer Saturday.
• highs 72-87 lows 47-54. (seasonal averages high 69 low 46)

.

___________

Forecast for The South Oregon Coast Including Coos Bay and North Bend:

• Mostly cloudy with a slight (20%) chance of coastal showers, becoming partly cloudy late tonight (under 0.10 in. of rain possible),
• Mostly cloudy with a slight (20%) chance of showers and slightly warmer Sunday, evening showers likely (70%), showers late Sunday night (0.25 in. of rain possible),
• Mostly cloudy with a good (50%) of coastal showers while inland AM showers likely (70%) and a good (50%) chance of inland showers Monday afternoon (0.10 in. of rain possible), a slight (20%) chance of showers at night,
• Partly cloudy and warmer Tuesday, then mostly clear Tuesday night,
• lows 42-46 cooling to 43 Tuesday night highs 58-62.
• Mostly sunny and a bit warmer Wednesday, partly cloudy Wednesday night,
• Mostly sunny and a bit warmer Thursday, mostly clear at night,
• Then sunny and a bit warmer Friday and Saturday, clear Friday night.
• highs 62-73 lows 43-48. (seasonal averages high 59 low 47)

__________

Forecast for the Northern Oregon Cascades including the Cascades in Lane County:

• Mostly cloudy with evening showers and snow showers with a slight (20%) chance of thunderstorms, a good (50%) chance of rain and snow showers late tonight (0.25 in. of rain possible, 1 in. of snow possible),
• A mix of clouds and sun with a slight (20%) chance of AM rain and snow showers, a good (50%) chance of showers and a bit cooler Sunday afternoon (0.10 in. of rain possible, little or no snow accumulation expected), a good (50%) chance of evening showers, rain and snow likely (70%) late Sunday night (under 0.10 in. of rain possible),
• Mostly cloudy and a bit cooler with rain and snow showers Monday (snow possibly heavy in the afternoon), evening rain and snow showers likely (70%), then a slight (20%) chance of rain and snow showers  late at night,
• Clouds and sun with slight (20%)chance of AM rain and snow showers, a (40%) chance of showers and a bit warmer Tuesday afternoon, partly cloudy with a slight (20%) chance of evening showers, then just partly cloudy late Tuesday night.
• snow level 4,500 ft. tonight, 4,000 ft. rising to 5,500 ft. Sunday afternoon, 5,500 ft. Sunday night, then 4,500 ft. Monday and Monday night, 5,000 ft. Tuesday, then 5,500 ft. Tuesday night.
• lows 29-32 cooling back to 29 Monday night and Tuesday night highs 45-42 warming to 47 Tuesday.
• Mostly sunny and a bit warmer with a slight (20%) chance of showers Wednesday afternoon, partly cloudy Wednesday night,
• Some AM clouds, sunny and a bit warmer Thursday afternoon, mostly clear Thursday night,
• Partly cloudy and a bit warmer Friday, partly cloudy Friday night,
• Then mostly sunny and a bit warmer Saturday.
• snow level  6,000 ft. Wednesday, free air freezing level 9,000 ft Wednesday night and Thursday, 10,000 ft. Thursday night, 12,000 ft. Friday, then 13,000 ft. Saturday.
• highs 55-70 lows 34-42.

Here is my weekly weather quiz question for the last time. What is the “Lifted Index? Here is the correct answer.  Lifted Index(abbrev. LI)- A common measure of atmospheric instability. Its value is obtained by computing the temperature that air near the ground would have if it were lifted to some higher level (around 18,000 feet, usually) and comparing that temperature to the actual temperature at that level. Negative values indicate instability – the more negative, the more unstable the air is, and the stronger the updrafts are likely to be with any developing thunderstorms. However there are no “magic numbers” or threshold LI values below which severe weather becomes imminent.

_________________

An Upper Level Low  and surface low with it associated cold front are sliding down the California coast keeping the flow of coastal moisture aimed our way. The graphics for days 1-3  show the frontal system, as described above,  moving southward tonight. The graphics for days 3-7  Tuesday through next Saturday show a quiet weather pattern, but a parade of fronts can be seen offshore to our northwest.

________________

Air Quality Index:

Eugene/Springfield: The Air Quality Index is 19 in the Good category measuring Ozone.

Oakridge: The Air Quality Index is 11 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 21 in the Good category measuring Ozone.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

________________

ADVISORIES:

• A FLOOD WARNING IS IN EFFECT UNTIL NEXT WEDNESDAY MORNING FOR THE JOHN DAY RIVER AT SERVICE CREEK AFFECTING WHEELER COUNTY.
• A FLOOD WARNING IS IN EFFECT FOR THE SPRAGUE  RIVER NEAR BEATTY AFFECTING KLAMATH COUNTY UNTIL EARLY SUNDAY MORNING DUE TO SNOW MELT.
• A FLOOD WARNING IS IN EFFECT FOR THE SILVIES RIVER NEAR BURNS AFFECTING HARNEY  COUNTY UNTIL LATE NEXT MONDAY NIGHT DUE TO SNOW MELT.
• A FLOOD ADVISORY IS IN EFFECT FOR BAKER COUNTY DUE TO RAIN AND SNOW MELT UNTIL 5 PM MDT SUNDAY.

HEALTH ADVISORIES:

Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:

• Mostly cloudy with patchy AM fog, a good (50%) chance of showers today (under 0.10 in. of rain possible), a slight (20%) chance of showers tonight (under 0.10 in. of rain possible),
• Mostly cloudy with a slight (20%) chance of AM showers, a good (50%) chance of showers Sunday afternoon, a good (50%) chance of evening showers, a good (50%) chance of rain late at night (under 0.10 in. of rain possible),
• Mostly cloudy with AM rain likely (70%), showers likely (70%) with a slight (20%) chance of thunderstorms Monday afternoon, a (40%) chance of evening showers, then partly cloudy late Monday night.
• highs near 60 lows 42-44 cooling back to 42 Monday night.
• AM clouds and sun with a slight (20%) chance of showers and a bit warmer Tuesday, partly cloudy Tuesday night,
• Partly cloudy and a bit warmer Wednesday, partly cloudy at night,
• Partly cloudy and a bit warmer Thursday, mostly clear Thursday night,
• Then mostly sunny and a bit warmer Friday.
• highs 65-76 lows 42-46. (seasonal averages high 66 low 43)

__________

Home Wood Heating Advisory:

Posted Daily

Eugene-Springfield: GREEN– Burning is Allowed.

Oakridge: GREEN– Burning is Allowed.

*Note: Pellet stoves may be used anytime if they produce no visible emissions.

Data courtesy of Lane Regional Air Protection Agency (LRAPA

__________

Eugene-Springfield Pollen Count:

Forecast for the Umpqua Valley including Roseburg:

• Mostly cloudy with a good (50%) chance of AM showers, showers likely (70%) this afternoon (under 0.10 in. of rain possible), a (30%) chance of showers tonight (0.10 in. of rain possible),
• Mostly cloudy with a (30%) chance of showers and a bit warmer Sunday, evening showers likely (70%), rain late at night (0.10 in. of rain possible),
• Mostly cloudy with a good (50%) chance of AM showers, a bit cooler with showers likely (70%) Monday afternoon, then a (30%) chance of showers Monday night.
• highs 62-63 c0oling to 60 Monday lows 42-47 cooling to 46 Monday night.
• Mostly cloudy with a slight (20%) chance of AM showers, partly cloudy a bit warmer with a slight (20%) chance of showers Tuesday afternoon, partly cloudy Tuesday night,
• Partly cloudy and a bit warmer Wednesday, partly cloudy at night,
• Mostly sunny and a bit warmer Thursday, mostly clear Thursday night,
• Then sunny and a bit warmer Friday.
• highs 66-80 lows 45-49. (seasonal averages high 69 low 46)

.

___________

Forecast for The South Oregon Coast Including Coos Bay and North Bend:

• Mostly cloudy and a bit warmer with a (30%) chance of showers today (under 0.10 in. of rain possible), a slight (20%) chance of showers tonight (under 0.10 in. of rain possible),
• Mostly cloudy with a (30%) chance of showers Sunday, evening showers, rain late at night (0.10 in. of rain possible),
• Mostly cloudy with a good (50%) of AM rain, a good (50%) chance of showers and a bit warmer Monday afternoon, then a slight (20%) chance of showers Monday night.
• highs near 58 lows 42-45 cooling back to 42 Monday night.
• Mostly cloudy with a slight (20%) chance of AM showers, just partly cloudy and a bit warmer Tuesday, partly cloudy Tuesday night,
• Partly cloudy and a bit warmer Wednesday and at night,
• Mostly sunny and a bit warmer Thursday, mostly clear Thursday night,
• Then sunny and a bit warmer Friday.
• highs 60-67 lows 43-45. (seasonal averages high 59 low 47)

__________

Forecast for the Northern Oregon Cascades including the Cascades in Lane County:

• Mostly cloudy with a good (50%) chance of AM rain and snow showers, showers with a slight (20%) chance of thunderstorms and a bit warmer this afternoon (0.25 in. of rain possible, 1 in. of snow possible), evening showers and snow showers likely (70%) with a slight (20%) chance of evening thunderstorms, a good (50%) chance of rain and snow showers late tonight (0.25 in. of rain possible, 1 in. of snow possible),
• Mostly cloudy with a good (50%) chance of AM snow showers, a good (50%) chance of showers and a bit warmer Sunday afternoon (little or no snow accumulation expected), evening showers likely (70%), rain and snow likely (70%) late at night,
• Mostly cloudy AM rain and snow likely (70%), showers and a bit cooler with a slight (20%) chance of thunderstorms Monday afternoon, evening rain and snow showers likely (70%), then a slight (20%) chance of rain and snow showers  late Monday night.
• snow level 5,000 ft. today, 4,500 ft. tonight, 4,000 ft. rising to 5,000 ft. Sunday afternoon, then 5,000 ft. Sunday night through Monday night.
• highs 42-44 cooling to 42 Monday lows 28-32 cooling to 29 Monday night.
• Clouds and sun with slight (20%) chance of AM rain and snow showers, a good (50%) chance of showers and a bit warmer Tuesday afternoon, partly cloudy with a (30%) chance of evening showers, just partly cloudy late Tuesday night,
• Partly cloudy and a bit warmer with a slight (20%) chance of showers Wednesday afternoon and evening, just partly cloudy late at night,
• Some AM clouds, sunny and a bit warmer Thursday afternoon, mostly clear Thursday night,
• Then mostly sunny and a bit warmer Friday.
• snow level 5,000 ft. Tuesday, 5,500 ft. Tuesday night, 6,000 ft. Wednesday, 6,500 ft Wednesday night,free air freezing level 9,000 ft. Thursday, 11,000 ft. Thursday night, then 13,000 ft. Friday.
• highs 47-65 lows 32-36.

5.3.23

Here is my weekly weather quiz question. What is the “Lifted Index?

_________________

An Upper Level Low  and surface low with it associated cold front are sliding down the California coast keeping the flow of coastal moisture aimed our way. The graphics for days 1-3  show the frontal system, as described above,  moving southward tonight. The graphics for days 3-7  Monday through next Friday show a quiet weather pattern, but a parade of fronts can be seen offshore to our northwest.

________________

Air Quality Index:

Eugene/Springfield: The Air Quality Index is 28 in the Good category measuring Ozone.

Oakridge: The Air Quality Index is 12 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 28 in the Good category measuring Ozone.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

________________

ADVISORIES:

• A FLOOD WARNING IS IN EFFECT UNTIL NEXT WEDNESDAY MORNING FOR THE JOHN DAY RIVER AT SERVICE CREEK AFFECTING WHEELER COUNTY.
• A FLOOD WARNING IS IN EFFECT FOR THE SPRAGUE  RIVER NEAR BEATTY AFFECTING KLAMATH COUNTY UNTIL EARLY SUNDAY MORNING DUE TO SNOW MELT.
• A FLOOD WARNING IS IN EFFECT FOR THE SILVIES RIVER NEAR BURNS AFFECTING HARNEY  COUNTY UNTIL LATE NEXT MONDAY NIGHT DUE TO SNOW MELT.
• A FLOOD ADVISORY IS IN EFFECT FOR BAKER COUNTY DUE TO RAIN AND SNOW MELT UNTIL 5 PM MDT SUNDAY.

HEALTH ADVISORIES:

Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:

• Mostly cloudy with a slight (20%) chance of rain tonight with patchy fog late (under 0.10 in. of rain possible),
• Mostly cloudy with patchy AM fog, a good (50%) chance of showers Saturday (0.10 in. of rain possible), a slight (20%) chance of showers Saturday night (under 0.10 in. of rain possible),
• Mostly cloudy with a slight (20%) chance of AM showers, a good (50%) chance of showers Sunday afternoon, a good (50%) chance of evening showers, a good (50%) chance of rain late at night (under 0.10 in. of rain possible),
• Mostly cloudy with AM rain likely (70%), showers likely (70%) with a slight (20%) chance of thunderstorms Monday afternoon, a (40%) chance of evening showers, then partly cloudy late Monday night.
• lows 47-42 warming to 44 Sunday night cooling to 42 Monday night highs near 60.
• AM clouds and sun with a slight (20%) chance of showers and a bit warmer Tuesday, partly cloudy Tuesday night,
• Partly cloudy and a bit warmer Wednesday, partly cloudy at night,
• Partly cloudy and a bit warmer Thursday, mostly clear Thursday night,
• Then mostly sunny and a bit warmer Friday.
• highs 65-76 lows 42-46. (seasonal averages high 66 low 43)

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Home Wood Heating Advisory:

Posted Daily

Eugene-Springfield: GREEN– Burning is Allowed.

Oakridge: GREEN– Burning is Allowed.

*Note: Pellet stoves may be used anytime if they produce no visible emissions.

Data courtesy of Lane Regional Air Protection Agency (LRAPA

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Eugene-Springfield Pollen Count:

Forecast for the Umpqua Valley including Roseburg:

• Mostly cloudy with evening showers likely (70%), a good (50%) chance of showers late tonight (0.10 in. of rain possible),
• Mostly cloudy with a good (50%) chance of AM showers, showers likely (70%) Saturday afternoon (under 0.10 in. of rain possible), a (30%) chance of showers Saturday night (0.10 in. of rain possible),
• Mostly cloudy with a (30%) chance of showers and a bit warmer Sunday, evening showers likely (70%), rain late at night (0.10 in. of rain possible),
• Mostly cloudy with a good (50%) chance of AM showers, a bit cooler with showers likely (70%) Monday afternoon, then a (30%) chance of showers Monday night.
• lows 46-42 warming to 46 Monday night highs 62-63 c0oling to 60 Monday.
• Mostly cloudy with a slight (20%) chance of AM showers, partly cloudy a bit warmer with a slight (20%) chance of showers Tuesday afternoon, partly cloudy Tuesday night,
• Partly cloudy and a bit warmer Wednesday, partly cloudy at night,
• Mostly sunny and a bit warmer Thursday, mostly clear Thursday night,
• Then sunny and a bit warmer Friday.
• highs 66-80 lows 45-49. (seasonal averages high 69 low 46)

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Forecast for The South Oregon Coast Including Coos Bay and North Bend:

• Mostly cloudy with a (40%) chance of showers tonight (under 0.10 in. of rain possible),
• Mostly cloudy and a bit warmer with a (30%) chance of showers Saturday (under 0.10 in. of rain possible), a slight (20%) chance of showers Saturday night (under 0.10 in. of rain possible),
• Mostly cloudy with a (30%) chance of showers Sunday, evening showers, rain late at night (0.10 in. of rain possible),
• Mostly cloudy with a good (50%) of AM rain, a good (50%) chance of showers and a bit warmer Monday afternoon, then a slight (20%) chance of showers Monday night.
• lows 45-42 warming back to 45 Sunday night cooling back to 42 Monday night highs near 58.
• Mostly cloudy with a slight (20%) chance of AM showers, just partly cloudy and a bit warmer Tuesday, partly cloudy Tuesday night,
• Partly cloudy and a bit warmer Wednesday and at night,
• Mostly sunny and a bit warmer Thursday, mostly clear Thursday night,
• Then sunny and a bit warmer Friday.
• highs 60-67 lows 43-45. (seasonal averages high 59 low 47)

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Forecast for the Northern Oregon Cascades including the Cascades in Lane County:

• Mostly cloudy with a good (50%) chance of rain with a good (50%) chance of snow late tonight (0.25 in. of rain possible, little or no snow accumulation expected),
• Mostly cloudy with a good (50%) chance of AM rain and snow showers, showers with a slight (20%) chance of thunderstorms and a bit warmer Saturday afternoon (0.25 in. of rain possible, 1 in. of snow possible), evening showers and snow showers likely (70%) with a slight (20%) chance of evening thunderstorms, a good (50%) chance of rain and snow showers late Saturday night (0.25 in. of rain possible, 1 in. of snow possible),
• Mostly cloudy with a good (50%) chance of AM snow showers, a good (50%) chance of showers and a bit warmer Sunday afternoon (little or no snow accumulation expected), evening showers likely (70%), rain and snow likely (70%) late at night,
• Mostly cloudy AM rain and snow likely (70%), showers and a bit cooler with a slight (20%) chance of thunderstorms Monday afternoon, evening rain and snow showers likely (70%), then a slight (20%) chance of rain and snow showers  late Monday night.
• snow level 5,000 ft. tonight and Saturday, 4,500 ft. Saturday night, 4,000 ft. rising to 5,000 ft. Sunday afternoon, then 5,000 ft. Sunday night through Monday night.
• lows 32-28 warming to 32 Sunday night cooling to 29 Monday night highs 42-44 cooling to 42 Monday.
• Clouds and sun with slight (20%) chance of AM rain and snow showers, a good (50%) chance of showers and a bit warmer Tuesday afternoon, partly cloudy with a (30%) chance of evening showers, just partly cloudy late Tuesday night,
• Partly cloudy and a bit warmer with a slight (20%) chance of showers Wednesday afternoon and evening, just partly cloudy late at night,
• Some AM clouds, sunny and a bit warmer Thursday afternoon, mostly clear Thursday night,
• Then mostly sunny and a bit warmer Friday.
• snow level 5,000 ft. Tuesday, 5,500 ft. Tuesday night, 6,000 ft. Wednesday, 6,500 ft Wednesday night,free air freezing level 9,000 ft. Thursday, 11,000 ft. Thursday night, then 13,000 ft. Friday.
• highs 47-65 lows 32-36.

5.3.23