Mar
24.
Here is my weekly weather quiz question for the last time. “What is the “QPf Discussion?” Here is the correct answer. The QPF is the Quantitative Precipitation Forecast. A spatial and temporal precipitation forecast that will predict the potential amount of future precipitation for a specified region, or area.
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An Upper Level Low Pressure Trough (“U” shape) covers just about all of the Western U.S.. The graphics for days 1-3 show the frontal system moving through the Pacific Northwest Monday. The graphics for days 3-7 Wednesday through Sunday show the parade of frontal systems headed toward the Pacific Northwest between Wednesday and Thursday and another moves southeastward through Southern California between Friday and next Saturday.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 12 in the Good category measuring Particulate Matter.
Oakridge: The Air Quality Index is 6 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 6 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 a slight (20%) chance of evening rain, a good (50%) chance of rain late tonight (under 0.10 in. of rain possible),
- Mostly cloudy with rain and slightly cooler Monday (under 0.10 in. of rain possible), evening rain likely (70%), a good (50%) chance of rain late Monday night (under 0.10 in. of rain possible),
- Mostly cloudy with AM rain likely (70%), a mix of clouds and sun and a bit warmer with a good (50%) chance of rain Tuesday afternoon, a good (50%) chance of evening rain, rain likely (70%) late at night (0.10 in. of rain possible),
- Mostly cloudy and a bit cooler with rain Wednesday, then showers with a slight (20%) chance of thunderstorms Wednesday night.
- lows 42-45 cooling back to 42 Wednesday night highs 53-57 cooling to 55 Wednesday.
- Mostly cloudy and a bit cooler with rain and a slight (20%) chance of thunderstorms Thursday, showers likely (70%) with a slight (20%) chance of thunderstorms Thursday night,
- Mostly cloudy with rain likely (70%) and a bit warmer Friday, a (40%) chance of evening rain, partly cloudy with a (40%) chance of rain late at night,
- Mostly sunny and a bit warmer with a slight (20%) chance of rain Saturday, mostly clear Saturday night,
- Then sunny and a bit warmer Sunday.
- highs 54-64 lows near 39. (seasonal averages high 58 low 38)
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EUGENE-SPRINGFIELD POLLEN COUNT:
GRASS: ABSENT (0)
TREES: HIGH (103)
WEEDS: ABSENT (0)
Measured 3.23.24
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 a slight (20%) chance of evening showers, just mostly cloudy late tonight,
- Mostly cloudy with a slight (20%) chance of AM showers, rain likely (70%) and a bit cooler Monday afternoon (under 0.10 in. of rain possible, snow level 3,500 ft.), evening rain likely (70%), a good (50%) chance of showers late Monday night (under 0.10 in. of rain possible, snow level 3,500 ft.),
- Mostly cloudy and a bit warmer with a (40%) chance of showers Tuesday (under 0.10 in. of rain possible, snow level 3,000 ft.), a good (50%) chance of evening showers, showers likely (70%) late at night (under 0.10 in. of rain possible),
- Then mostly cloudy and a bit cooler with showers and a slight (20%) chance of thunderstorms Wednesday and Wednesday night.
- lows 42-47 cooling to 43 Wednesday night highs 54-60 cooling to 57 Wednesday.
- Mostly cloudy with AM showers and snow showers with a slight (20%) chance of thunderstorms, showers and a bit cooler with a slight (20%) chance of thunderstorms Thursday afternoon, evening showers, a good (50%) chance of rain and snow showers at night,
- Mostly cloudy with a good (50%) chance of AM rain and snow showers, a good (50%) chance of showers and a bit warmer Friday afternoon, mostly cloudy with a good (50%) chance of evening showers, a (30%) chance of showers late Friday night,
- Mostly cloudy with a (30%) chance of AM showers, partly cloudy and a bit warmer with a slight (20%) chance of showers Saturday afternoon, a slight (20%) chance of evening showers, becoming mostly clear late Saturday night,
- Then sunny and a bit warmer Sunday.
- highs 55-64 lows near 40. (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 a slight (20%) chance of early evening inland showers, a slight (20%) chance of showers tonight,
- Mostly cloudy with a good (50%) chance of AM showers, coastal showers likely (70%) Monday afternoon while inland rain likely (70%) Monday afternoon (under 0.10 in. of rain possible), a good (50%) chance of evening coastal rain while evening inland rain likely (70%), a good (50%) chance of showers late Monday night (under 0.10 in. of rain possible),
- Mostly cloudy and a bit warmer with a (30%) chance of showers Tuesday (under 0.10 in. of rain possible), cloudy with a good (50%) chance of evening showers, showers likely (70%) late at night (under 0.10 in. of rain possible),
- Then mostly cloudy and a bit cooler with showers and breezy and a slight (20%) chance of thunderstorms Wednesday and Wednesday night.
- lows 43-46 cooling back to 43 Wednesday night highs 54-57 cooling to 55 Wednesday.
- Mostly cloudy with showers and a bit cooler and breezy with a slight (20%) chance of thunderstorms Thursday, evening showers, showers likely (70%) Thursday night,
- Mostly cloudy with AM showers likely (70%), a bit warmer with a good (50%) chance of showers Friday afternoon, mostly cloudy with a (40%) chance of evening showers, partly cloudy with a (30%) chance of showers at night,
- Mostly cloudy and a bit warmer with a slight (20%) chance of showers Saturday and in the evening, just partly cloudy late Saturday night,
- Then mostly sunny and a bit warmer with a slight (20%) chance of showers Sunday afternoon.
- highs 53-59 lows near 42. (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 evening rain and snow likely (70%), a good (50%) chance of rain and snow late tonight (0.25 in,. of rain possible),
- Mostly cloudy with a good (50%) chance of AM rain and snow, rain and snow and a bit warmer Monday afternoon (0.10 in. of rain possible, 1 in. of snow possible), rain and snow Monday night (0.10 in. of rain possible, 1 in. of snow possible),
- Mostly cloudy with AM snow and rain likely (70%), a mix of clouds and sun with a good (50%) chance of rain and snow and a bit Tuesday afternoon, rain and snow likely (70%) late at night,
- Mostly cloudy with rain and snow Wednesday, then snow and rain with a slight (20%) chance of thunderstorms Wednesday night.
- snow level 3,500 ft. tonight through Tuesday, 4,500 ft. Tuesday night and Wednesday, then 3,000 ft. Wednesday night.
- lows 28-32 cooling to 27 Wednesday night highs 38-40.
- Mostly cloudy and a bit cooler with rain and snow Thursday, a good (50%) chance of snow and rain Thursday night,
- Mostly cloudy with snow and rain and a bit warmer Friday, a (30%) chance of rain and snow at night,
- A mix of clouds and sun with a good (50%) chance of rain and snow and a bit warmer Saturday, slow clearing with a (30%) chance of rain and snow Saturday night,
- Then mostly sunny and a bit warmer with a slight (20%) chance of rain and snow Sunday.
- snow level 3,500 ft. Thursday through Friday, 4,000 ft. Friday through Saturday, then 4,500 ft. 4,500 ft. Saturday night and Sunday.
- highs 40-48 lows 25-27.
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