Here is my new weekly weather quiz question. What is the “Ionosphere?

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An Upper Level Low Pressure Trough (“U “shape) is slowly moving southward over the Pacific Northwest. The graphics for days 1-3 show the frontal activity approaching Oregon.  The graphics for days 3-7 show more complex frontal activity moving our way Thursday through next Monday giving us chances of getting wet.

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Air Quality Index:

Eugene/Springfield: The Air Quality Index is 14in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 61 in the Moderate category measuring Particulate Matter.

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

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

NOTE: Outdoor burning remains temporarily prohibited for the following areas: Eugene-Springfield (Always), Florence (Always), Lowell, Oakridge and UGB, and Springfield and UGB.

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ADVISORIES:

• A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 4 PM TODAY FOR THE NORTHERN OREGON CASCADE FOOTHILLS.
• A WINTER WEATHER ADVISORY IS IN EFFECT FROM 7 AM TODAY UNTIL 4 AM TONIGHT FOR THE NORTHERN OREGON CASCADES AND THE CASCADES IN LANE COUNTY.
• A WINTER WEATHER ADVISORY IS IN EFFECT IS IN EFFECT UNTIL 11 AM TODAY FOR THE LOWER COLUMBIA AND THE WESTERN COLUMBIA RIVER GORGE.
• A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 11AM TODAY FOR THE CENTRAL WILLAMETTE VALLEY.
• A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 11 AM TODAY FOR THE COAST RANGE OF NORTHWESTERN OREGON.AND THE CENTRAL COAST RANGE OF OF WESTERN OREGON.

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

• Mostly cloudy with AM rain and snow (snow level 500 ft.), showers with a slight (20%) chance of thunderstorms and a bit cooler this afternoon (0.25 in. of rain possible, 1 in. of snow possible), late evening rain and snow showers with a slight (20%) chance of thunderstorms, rain and snow showers late tonight (0.25 in. of rain possible, 0.50 in. of snow possible, snow level 1,000 ft. falling to 500 ft. late at night),
• Mostly cloudy with rain and snow showers Tuesday (1 in. of snow possible, snow level 500 ft. rising to 1,000 ft. in the afternoon), a good (50%) chance of Wednesday, partly cloudy in the evening, then mostly cloudy with a slight (20%) of rain and snow late Wednesday night (snow level 500 ft. late at night).
• highs near42 lows 32-26 warming to 28 Wednesday night.
• Mostly cloudy with AM rain and snow (snow level 500 ft.), rain Thursday afternoon, a good (50%) chance of evening rain and snow, a slight (20%) chance of snow late Thursday night (snow level 1,500 ft. falling to 500 ft. late at night),
• AM clouds and sun with a good (50%) chance of rain and a slight (20%) chance of snow (snow level 1,000 ft.), a mix of clouds and sun and a bit warmer with a good (50 %) chance of rain Friday afternoon (snow level 500 ft.), evening rain and snow likely (70%), rain and snow likely (70%) late Friday night (snow level 1,500 ft. falling to 1,000 ft,
• Mostly cloudy with AM rain and snow (snow level 1,000 ft.), rain and a bit cooler Saturday afternoon, evening rain and snow, a (%) chance of rain or snow late Saturday night,
• Mostly cloudy with AM rain likely (70%) and a (30%) chance of snow, then rain likely (70%) Sunday afternoon (snow level 500 ft. rising to 1,000 ft. in the afternoon.).
• highs 42-45 cooling to 43 Saturday night lows 30-32 cooling to 29 Saturday night (seasonal averages high 54 low 36)

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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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Forecast for the Umpqua Valley including Roseburg:

• Mostly cloudy with showers, snow showers and a slight (20%) chance of thunderstorms and a bit cooler this afternoon (0.25 in. of rain possible, 1-2 in. of snow possible lower elevations while 5-8 in. of snow possible above 1,500 ft., snow level 900 ft. rising to 1,500 ft. this afternoon) and breezy (Wind: S 15-25 mph), evening rain and snow showers and a slight (20%) chance of thunderstorms, snow showers and a slight (20%) chance thunderstorms late at night (0.25 in. of rain possible, 2-4 in. of snow possible lower elevations while 4-7 in. of snow possible above 1,500 ft., snow level 700 ft.)
• Mostly cloudy with AM snow showers and a slight (20%) chance of thunderstorms, partly cloudy showers, snow showers and a slight (20%) chance of thunderstorms and a bit cooler Tuesday afternoon (snow level 1,000 ft.), a good (50%) chance of evening rain and snow with a slight (20%) chance of thunderstorms, a good (50%) chance of showers late Tuesday night,
• Mostly cloudy with a slight (20%) chance of AM snow showers, partly cloudy and a bit warmer with a slight (20%) chance of rain and snow showers Wednesday afternoon, just partly cloudy in the evening, rain and snow showers, then mostly cloudy with a slight (20%) chance of rain and snow showers late Wednesday night.
• lows 33-27 highs 44-42 warming back to 44 Wednesday.
• Mostly cloudy with a (40%) chance of AM rain and snow showers, rain and snow showers Thursday afternoon, a good (50%) chance of rain and snow showers late Thursday night,
• Mostly cloudy with a slight (20%) chance of rain and snow showers and a bit warmer Friday and in the evening, rain and snow showers likely (70%) late Friday night,
• Then mostly cloudy and a bit cooler with rain and snow showers Saturday through Sunday,
• highs 43-47 cooling to 44 Saturday and Sunday lows near 32. (seasonal averages high 56 low 38)

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

• Mostly cloudy with coastal showers and a (30%) chance of thunderstorms while inland showers and snow showers with a (30%) chance of thunderstorms and a bit cooler today (0.50 in. of rain possible, patchy blowing snow, snow possibly heavy at times, snow level 1,000 ft. rising to 1,500 ft. this afternoon), evening coastal showers with a (30%) chance of thunderstorms and coastal showers, snow showers and a slight (20%) chance of thunderstorms late tonight while inland showers and snow showers with a slight (20%) chance of thunderstorms tonight (0.50 in. of rain possible, 3-5 in. of snow possible, snow level 900 ft.),
• Mostly cloudy with AM coastal showers, snow showers and a slight (20%) chance of thunderstorms and coastal showers and a bit cooler Tuesday afternoon while inland showers and snow showers and a slight (20%) chance of thunderstorms Tuesday, evening showers and snow showers with a slight (20%) chance of thunderstorms, a good (50%) chance of rain and snow showers late Tuesday night (snow level 400 ft.),
• Partly cloudy with a slight (20%) chance of AM rain and snow showers, just partly cloudy and a bit warmer Wednesday afternoon, partly cloudy in the evening, then mostly cloudy with rain and snow showers likely (70%) late Wednesday night .
• highs 46-44 warming back to 46 Wednesday lows near 37-29.
• Mostly cloudy with AM rain and snow showers, showers and a bit warmer Thursday afternoon, a good (50%) chance of rain and snow showers late Thursday night,
• Mostly cloudy with a slight (20%) chance of AM rain and snow showers, a (30%) chance of showers Friday afternoon, evening rain and snow showers likely (70%), rain and snow showers late at night,
• Mostly cloudy and a bit cooler with rain and snow showers and breezy Saturday and  Saturday night,
• Then mostly cloudy and slightly warmer with rain and snow showers Sunday.
• highs 48-46warming back to 48 Sunday lows 30-33 cooling back to 30 Saturday night. (seasonal averages high 54 low 41)

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

• Mostly cloudy with AM snow, and a bit warmer with snow showers today (2-6 in. of snow possible, snow, possibly heavy at times this afternoon, snow showers tonight (3-7 in. of snow possible, snow possibly heavy at times) and breezy (Wind: S 5-15 mph increasing and shifting to W 15-25 mph late tonight),
• Mostly cloudy with snow showers and a bit cooler Tuesday (1-2 in. of snow possible), a slight (20%) chance of snow showers Tuesday night, evening show showers, a good (50%) chance of snow showers late at night,
• A mix of clouds and sun and a bit warmer with a (40%) chance of snow showers Wednesday, partly cloudy in the evening,  then mostly cloudy late Wednesday night.
• snow level at the surface tonight, 1,500 ft. Monday afternoon, at the surface Monday night through Wednesday, then free air freezing level 2,500 ft. Wednesday evening.
• highs 28-25 warming to 27 Wednesday lows 17-13.
• Mostly cloudy with a good (50%) chance of AM snow, snow and a bit warmer Thursday afternoon, a good (50%) chance of snow Thursday night,
• A mix of clouds and sun and a bit warmer with a good (50%) chance of snow Friday, partly cloudy with a good 50%) chance of evening snow, mostly cloudy with a good (50%) chance of snow showers late at night,
• Mostly cloudy with snow and a bit cooler Saturday, snow likely (70%) Saturday night,
• Then mostly cloudy with snow Sunday.
• snow level 2,000 ft. Thursday and Thursday evening, 1,500 ft. Friday afternoon through Saturday afternoon, then at the surface Saturday night and Sunday.
• highs 30-32 cooling to 28 Saturday and Sunday lows 16-18 cooling back to 16 Saturday night.

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For all of your Eugene-Springfield and Lane County News, Weather, and Sports go to: EugeneDailyNews.com

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