Mar
21.
Here is my weekly weather quiz question. “What is the “QPf Discussion?”
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An Upper Level High Pressure Ridge (“Arch” shape) starts migrating away from us. The graphics for days 1-3 show the frontal systems that is on the way to the Pacific Northwest Friday. The graphics for days 3-7 Monday through Friday show the frontal system that pushes through the Pacific Northwest Wednesday and next Thursday.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 15 in the Good category measuring Particulate Matter.
Oakridge: The Air Quality Index is 17 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 38 in the Good category measuring Particulate Matter.
Data courtesy of Lane Regional Air Protection Agency (LRAPA)
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ADVISORIES:
- NONE AT THIS TIME.
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 patchy AM fog and a good (50%) chance of rain, some sun breaks with showers and a bit cooler with a slight (20%) chance of thunderstorms this afternoon (0.25 in. of rain possible, more in storms), evening showers likely (70%) with a slight (20%) chance of thunderstorms, a good (50%) chance of showers late tonight (0.10 in. of rain possible),
- Mostly cloudy with showers and a slight (20%) chance of thunderstorms and a bit cooler Saturday (0.10 in. of rain possible), a slight (20%) chance of evening thunderstorms, showers likely (70%) at night (under 0.10 in. of rain possible),
- Mostly cloudy and a bit cooler with showers likely (70%) Sunday, then a good (50%) chance of showers Sunday night.
- highs 60-56 lows near 42.
- Mostly cloudy with rain and a bit cooler Monday, rain likely (70%) Monday night,
- Mostly cloudy and a bit warmer with rain Tuesday, rain at night,
- Mostly cloudy with rain Wednesday and Wednesday night,
- Then mostly cloudy with rain likely (70%) Thursday.
- highs 52-55 lows 42-44 cooling to 40 Thursday. (seasonal averages high 58 low 38)
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EUGENE-SPRINGFIELD POLLEN COUNT:
GRASS: ABSENT (0)
TREES: HIGH (345)
WEEDS: ABSENT (0)
Measured 3.21.24
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 AM rain, showers and a bit cooler with a slight (20%) chance of thunderstorms this afternoon and evening (0.10 in. of rain possible), a good (50%) chance of showers late tonight (under 0.10 in. of rain possible, snow level 3,500 ft.),
- Mostly cloudy with AM showers likely (70%), showers with a slight (20%) chance of thunderstorms and a bit cooler Saturday (0.10 in. of rain possible), evening showers with a slight (20%) chance of thunderstorms, a good (50%) chance of showers late at night (under 0.10 in. of rain possible),
- Mostly cloudy with showers likely (70%) Sunday, then a (30%) chance of showers Sunday night.
- highs 58-55 lows near 43.
- Mostly cloudy with AM showers likely (70%), rain likely (70%) Monday night,
- Mostly cloudy with rain likely (70%) Tuesday, rain at night,
- Mostly cloudy with Wednesday and in the evening, rain and snow likely (70%) Wednesday night and Thursday AM, then rain likely (70%) Thursday afternoon.
- highs near 55 lows near 43. (seasonal average high 60 low 40)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Mostly cloudy with AM rain, coastal showers likely (70%) with a slight (20%) chance of thunderstorms this afternoon while inland showers and a bit cooler with a slight (20%) chance of thunderstorms this afternoon (0.50 in. of rain possible), evening coastal showers with a slight (20%) chance of thunderstorms and coastal showers with a slight (20%) chance of thunderstorms late tonight while mostly cloudy with inland evening showers and a slight (20%) chance of thunderstorms and inland showers late tonight (0.10 in. of rain possible),
- Mostly cloudy and a bit cooler with showers and a slight (20%) chance of thunderstorms Saturday (0.25 in. of rain possible), evening coastal showers likely (70%) while inland evening showers and a slight (20%) chance of thunderstorms, a good (50%) chance of showers late at night (under 0.10 in. of rain possible),
- Mostly cloudy with AM showers likely (70%), then a good (50%) chance of showers Sunday afternoon, a (30%) chance of showers Sunday night,
- highs 58-55 lows 44-42.
- Mostly cloudy with AM showers likely (70%), showers Monday afternoon, rain likely (70%) Monday night,
- Mostly cloudy with rain likely (70%) Tuesday, rain and breezy at night,
- Mostly cloudy with rain and breezy Wednesday, rain Wednesday night,
- Mostly cloudy with AM rain, then rain likely (70%) Thursday afternoon.
- highs near 55 lows 42-44 cooling back to 42 Wednesday night. (seasonal average high 55 low 42)
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Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Mostly cloudy with a slight (20%) chance of AM rain, showers and a bit cooler with a slight (20%) chance of thunderstorms this afternoon (0.25 in. of rain possible, more in storms), evening showers and snow showers with a slight (20%) chance of thunderstorms, rain and snow showers likely (70%) late tonight (0.50 in. of rain possible),
- Mostly cloudy with rain showers and snow showers a slight (20%) chance of thunderstorms and a bit cooler Saturday and in the evening, rain and snow showers likely (70%) late at night,
- Mostly cloudy with rain and snow showers Sunday, then a (50%) chance of rain and snow showers Sunday night.
- snow level 6,000 ft. today, 5,000 ft. falling to 4,000 ft. tonight, 3,500 ft. Saturday through Sunday, then 4,000 ft. Sunday night.
- highs 48-37 lows near 28.
- Mostly cloudy with snow and rain Monday, rain and snow Monday night,
- Mostly cloudy with rain and snow Tuesday and at night,
- Mostly cloudy and a bit cooler with rain and snow Wednesday (snow possibly heavy at times), snow and rain likely (70%) Wednesday night,
- Then mostly cloudy and a bit cooler with snow and rain Thursday.
- snow level 3,500 ft. Monday, 4,000 ft. Monday night, 3,500 ft. Tuesday, 4,000 ft.Wednesday, then 3,000 ft. Wednesday night and Thursday.
- highs 38-36 lows near 28.
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