Mar
01.
Here is my weekly weather quiz question. “What is a “Polar Front?”
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The Jet Stream will be bringing us colder air from the northwest with an Upper Level High Pressure Ridge (“Arch” shape) moving over the the Pacific Northwest. The graphics for days 1-3 show the cold front that moved through Oregon. The graphics for days 3-7 Monday through Friday show the frontal activity through the period.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 13 in the Good category measuring Particulate Matter.
Oakridge: The Air Quality Index is 20 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 8 in the Good category measuring Particulate Matter.
Data courtesy of Lane Regional Air Protection Agency (LRAPA)
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ADVISORIES:
- A WINTER STORM WARNING IS IN EFFECT UNTIL 7 AM SATURDAY ABOVE 1,000 FT. FOR THE COAST RANGE OF NORTHWEST OREGON AND THE CENTRAL COAST RANGE OF WESTERN OREGON.
- A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 4 PM SATURDAY ABOVE 1,500 FT. FOR THE NORTHERN OREGON CASCADE FOOTHILLS, THE NORTHERN OREGON CASCADES, THE CASCADE FOOTHILLS IN LANE COUNTY, THE CASCADES IN LANE COUNTY, AND THE UPPER HOOD RIVER VALLEY.
- A WINTER STORM WARNING IS IN EFFECT UNTIL 10 AM SATURDAY ABOVE 2,500 FT. FOR THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN LAKE COUNTY.
- A WINTER STORM WARNING IS IN EFFECT UNTIL 10 AM SATURDAY FOR THE SOUTH CENTRAL OREGON CASCADES, THE SISKIYOU MOUNTAINS, AND THE SOUTHERN OREGON CASCADES.
- A WINTER STORM WARNING IS IN EFFECT UNTIL 4 PM SUNDAY FOR EASTERN CURRY COUNTY AND JOSEPHINE COUNTY.
- A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 10 AM SATURDAY FOR EASTERN CURRY COUNTY AND JOSEPHINE COUNTY.
- A WINTER WEATHER ADVISORY IS IN EFFECT FROM 10 AM SATURDAY UNTIL 4 PM SUNDAY ABOVE 4,000 FT. FOR THE EAST SLOPES OF THE OREGON CASCADES.
- A WINTER STORM WARNING IS IN EFFECT UNTIL 10 AM SATURDAY FOR CENTRAL AND EASTERN LAKE COUNTY.
- A WINTER STORM WARNING IS IN EFFECT UNTIL 10 AM SATURDAY ABOVE 2,500 FT. FOR THE EASTERN DOUGLAS COUNTY FOOTHILLS.
- A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 10 AM SATURDAY FOR THE EASTERN DOUGLAS COUNTY FOOTHILLS
- A WINTER STORM WARNING IS IN EFFECT UNTIL 10 AM SATURDAY ABOVE 2,000 FT. FOR CENTRAL DOUGLAS COUNTY.
- A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 10 AM SATURDAY ABOVE 800 FT. FOR CENTRAL DOUGLAS COUNTY.
- A WINTER STORM WARNING IS IN EFFECT UNTIL 10 AM SATURDAY ABOVE 2,500 FT. FOR THE EASTERN DOUGLAS COUNTY FOOTHILLS.
- A WINTER STORM WARNING IS IN EFFECT UNTIL 4 PM SUNDAY ABOVE 2,500 FT. FOR EASTERN CURRY COUNTY, AND JOSEPHINE COUNTY.
- A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 10 AM SATURDAY ABOVE 1,500 FT. FOR EASTERN CURRY COUNTY, AND JOSEPHINE COUNTY.
- A WINTER STORM WARNING IS IN EFFECT UNTIL 10 AM SATURDAY ABOVE 2,500 FT. FOR JACKSON COUNTY.
- A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 4 PM SUNDAY FOR JACKSON COUNTY.
- A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 4 AM SUNDAY ABOVE 1,000 FT. FOR THE COAST RANGE OF NORTHWEST OREGON AND THE CENTRAL COAST RANGE OF WESTERN OREGON.
- A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 10 AM SATURDAY ABOVE 800 FT. FOR THE SOUTH CENTRAL OREGON COAST.
- A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 10 AM SATURDAY ABOVE 1,000 FT. FOR THE CURRY COUNTY COAST.
- A HIGH WIND WARNING IS IN EFFECT UNTIL 11 PM MST TODAY FOR HARNEY COUNTY AND MALHEUR COUNTY.
- A HIGH SURF ADVISORY IS IN EFFECT UNTIL 10 PM TONIGHT FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
- A FLOOD WATCH IS IN EFFECT THROUGH MIDNIGHT TONIGHT FOR THE COQUILLE RIVER AT COQUILLE AFFECTING THE SOUTH CENTRAL OREGON COAST.
- AN AVALANCHE WARNING IS IN EFFECT UNTIL 7 AM SATURDAY FOR THE WALLOWA MOUNTAINS NORTH.
HEALTH ADVISORIES:
- A PERMANENT HEALTH ADVISORY REMAINS IN EFFECT FOR THE SOUTH UMPQUA RIVER BAR. POOLS IN THE BEDROCK ALONG THE RIVERS EDGE ARE KNOWN TO DEVELOP BLUE-GREEN ALGAE (CYANOBACTERIAL) BLOOMS THAT CAN BE HARMFUL TO PETS AND PEOPLE IF ACCIDENTAL INGESTION OCCURS. SIGNS HAVE BEEN POSTED ALONG SEVERAL ACCESS AREAS ALONG THE RIVER.
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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:
- Mostly cloudy with evening rain showers and possible snow showers with a slight (20%) chance of thunderstorms, snow showers likely (70%) with a (%) chance of rain showers late tonight (0.50 in. of rain possible, more in storms, little or no snow accumulation expected, snow level 500 ft.),
- Mostly cloudy and a bit cooler with rain and snow showers likely (70%) with a slight (20%) chance of thunderstorms Saturday afternoon (0.25 in. of rain possible, small hail possible, little or no snow accumulation expected, snow level 500 ft.), rain and snow showers likely (70%) with a slight (20%) chance of thunderstorms evening thunderstorms, rain and snow showers likely (70%) late Saturday night with a slight (20%) chance of thunderstorms (0.25 in. of rain possible, 1 in. of snow possible, small hail possible, snow level 500 ft.),
- Mostly cloudy with AM snow showers, a bit warmer with showers and a slight (20%) chance of thunderstorms Sunday afternoon (snow level 500 ft.), evening rain and snow showers with a slight (20%) chance of thunderstorms, rain and snow showers at night (snow level 1,000 ft.),
- Mostly cloudy with rain and snow showers Monday (snow level 1,500 ft.), then rain showers with snow showers likely (70%) Monday night (snow level 1,500 ft.).
- lows 33-30 warming to 34 Sunday night cooling to 32 Monday night highs 43-45.
- Mostly cloudy with a (%) chance of rain with snow showers likely (70%) and a bit warmer Tuesday, a good (50%) chance of rain and snow showers Tuesday night,
- Mostly cloudy with a good (50%) chance of rain and snow showers Wednesday (snow level 1,000 ft.), a good (50%) chance of rain and snow showers at night (snow level 1,500 ft),
- A mix of clouds and sun and a bit warmer with a (40%) chance of rain and snow showers Thursday (snow level 1,500 ft.), partly cloudy with a slight (20%) chance of showers Thursday night,
- Then a mix of clouds and sun and a bit warmer with a (30%) chance of showers Friday.
- highs 46-52 lows 30-32. (seasonal averages high 54 low 36)
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EUGENE-SPRINGFIELD POLLEN COUNT:
GRASS: ABSENT (0)
TREES: LOW (9)
WEEDS: ABSENT (0)
Measured 2.29.24
Data courtesy of Oregon Allergy Associates.
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Home Wood Heating Advisory:
Eugene-Springfield: GREEN- Burning wood in wood stoves or fireplaces is allowed.
Oakridge: GREEN- Burning wood in wood stoves or fireplaces is allowed.
*Pellet stoves can be used anytime since they don’t produce the particulate smoke.
Data courtesy of Lane Regional Air Protection Agency (LRAPA)
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Forecast for the Umpqua Valley including Roseburg:
- Mostly cloudy with evening rain showers and snow showers with a slight (20%) chance of thunderstorms, rain showers snow showers likely (70%) and a slight (20%) chance of thunderstorms late tonight (0.25 in. of rain possible, 3-4 in. of snow possible lower elevations and 3-6 in.of snow possible higher elevations, snow level 800 ft.falling to 300 ft.),
- Cloudy with showers and snow showers likely (70%) and a slight (20%) chance of thunderstorms and and a bit cooler Saturday (0.10 in. of rain possible, 1-2 in. of snow possible lower elevations and 3-4 in. of snow possible above 1,500 ft., snow level 300 ft. rising to 1,000 ft. in the afternoon,), showers and snow showers and a slight (20%) chance of thunderstorms Saturday night (under 0.10 in. of rain possible, 1-2 in. of snow possible lower elevations and 2-3 in. of snow possible above 1,500 ft.,snow level 500 ft. ),
- Mostly cloudy with rain showers and snow showers with a slight (20%) chance of thunderstorms and a bit warmer Sunday (snow level 600 ft. rising to 2,000 ft. in the afternoon), rain showers and snow showers with a slight (20%) chance of thunderstorms late at night (snow level 1,500 ft. falling to 1,000 ft. late at night),
- Mostly cloudy with AM rain and snow and a slight (20%) chance of thunderstorms, rain showers and and snow and a bit warmer Monday afternoon, evening rain and snow showers, then rain and snow showers likely (70%) late Monday night.
- lows 32-35 highs 44-46.
- Mostly cloudy with AM rain and snow showers likely (70%), a good (50%) chance of rain and snow showers Tuesday afternoon, a good (50%) chance of rain and snow showers Tuesday night,
- Mostly cloudy with a good (50%) chance of rain and snow showers Wednesday and at night,
- Mostly cloudy and a bit warmer with a (40%) chance of rain and snow Thursday, a slight (20%) chance of rain and snow Thursday night,
- Then mostly cloudy and a bit warmer with a slight (20%) chance of rain and snow Friday.
- highs 46-53 lows near 32. (seasonal average high 57 low 38)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Mostly cloudy with early evening coastal showers and a slight (20%) chance of thunderstorms with coastal showers and snow showers and a slight chance of coastal thunderstorms late tonight while inland showers and snow showers with a slight (20%) chance of thunderstorms tonight (0.25 in. of rain possible, 3-4 in. of snow possible, patchy blowing snow late at night (snow level 700 ft.),
- Mostly cloudy with AM coastal showers and snow showers with a slight (20%) chance of thunderstorms with coastal showers likely (70%) and a bit cooler Saturday afternoon while inland AM showers and snow showers with a slight (20%) chance of thunderstorms and snow showers with a slight (20%) chance of thunderstorms Saturday afternoon (0.25 in. of rain possible, 1-2 in. of snow possible, snow level 800 ft.), coastal showers and a (30%) chance of thunderstorms Saturday night while inland snow showers and a slight (20%) chance of thunderstorms (0.25 in. of rain possible, 2-3 in. of snow possible, snow level 800 ft.)
- Mostly cloudy with coastal showers and a slight (20%) chance of thunderstorms Sunday while inland snow showers with a slight (20%) chance of thunderstorms at night (snow level 1,500 ft.)
- Mostly cloudy with AM showers and a slight (20%) chance of thunderstorms, showers and a bit warmer Monday afternoon and evening, then rain and snow showers likely (70%) Monday night.
- Sunday lows 34-37 highs 47-49.
- Mostly cloudy with AM rain and snow showers likely (70%), a good (50%) chance of showers and a bit warmer Tuesday afternoon, a (40%) chance of rain and snow showers Tuesday night,
- Mostly cloudy with a good (50%) chance of rain and snow showers Wednesday and in the evening, a good (50%) chance of rain and snow late Wednesday night,
- Mostly cloudy with a (40%) chance of AM rain and snow, a (30%) chance of rain and a bit warmer Thursday afternoon, mostly cloudy with a slight (20%) chance of rain Thursday night,
- Then mostly cloudy and a bit warmer with a slight (20%) chance of rain Friday.
- highs 50-56 lows 35-37. (seasonal average high 55 low 41)
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Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Mostly cloudy with snow showers and patchy evening blowing snow, snow showers tonight (3-6 in. of snow possible, snow possibly heavy at times),
- Mostly cloudy and a bit cooler with snow showers likely (70%) Saturday (1-3 in. of snow possible), snow showers likely (70%) at night (1-2 in. of snow possible),
- Mostly cloudy and a bit warmer with snow showers Sunday, snow showers Sunday night,
- Mostly cloudy and a bit warmer with snow and rain showers Monday (snow possibly heavy at times), then snow showers with a slight (20%) chance of rain showers Monday night.
- snow level 1,500 ft. this evening, at the surface Saturday and Saturday night, 1,500 ft. Sunday afternoon, at the surface Sunday night, 1,500 ft. Monday, then 2,000 ft. Monday night.
- lows 18-14 warming to 20 Sunday night and Monday night highs 26-29.
- Mostly cloudy and a bit warmer with snow showers likely (70%) Tuesday, snow showers likely (70%) with a good (50%) chance of rain showers Tuesday night,
- Mostly cloudy and a bit warmer with snow showers likely (70%) Wednesday, a good (50%) chance of snow showers at night,
- A mix of clouds and sun and a bit warmer with a good (50%) chance of snow showers likely (70%) and a bit cooler Thursday, partly cloudy with a (40%) chance of snow showers and a slight (20%) chance of rain showers Thursday night,
- Partly cloudy and a bit warmer with a (30%) chance of snow and rain showers Friday.
- snow level 1,500 ft. Tuesday, 2,000 ft. Tuesday night,1,500 ft. Wednesday and Wednesday night, 2,000 ft, Thursday, 2,500 ft. Thursday night, then 3,000 ft. Friday.
- highs 32-18 warming to 20 Thursday night lows 18-20.
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