Mar
23.
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) moves up along the coast. The graphics for days 1-3 show the frontal system moving through the Pacific Northwest Monday. The graphics for days 3-7 Tuesday through Saturday show the parade of frontal systems headed toward the Pacific Northwest Wednesday and Thursday and Thursday and Friday.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 10 in the Good category measuring Particulate Matter.
Oakridge: The Air Quality Index is 4 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 4 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 (40%) chance of evening showers and a slight (20%) chance of thunderstorms, a good (50%) chance of showers late tonight (under 0.10 in. of rain possible, more in storms),
- Mostly cloudy and a bit cooler with showers likely (70%) Sunday (under 0.10 in. of rain possible), a good (50%) chance of evening showers, a slight (20%) chance of showers late Sunday night (under 0.10 in. of rain possible),
- Mostly cloudy with rain and a bit cooler Monday (under 0.10 in. of rain possible), rain at 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 rain likely (70%) Tuesday afternoon, then rain likely (70%) Tuesday night.
- lows 42-44 highs 55-52 warming to 57 Tuesday.
- Mostly cloudy and a bit cooler with rain Wednesday and Wednesday night,
- Mostly cloudy and a bit cooler with rain Thursday, rain at night,
- Mostly cloudy with rain and a bit warmer Friday, mostly cloudy with a good (50%) chance of evening rain, partly cloudy with a good (50%) chance of rain Friday night,
- Then a mix of clouds and sun and a bit warmer Saturday.
- highs 54-52 warming to 59 Saturday lows 42-39. (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 early evening showers likely (70%) and a slight (20%) chance of thunderstorms, a good (50%) chance of showers late tonight (0.10 in. of rain possible, snow level 3,500 ft.),
- Mostly cloudy and a bit cooler with a good (50%) chance of showers Sunday (under 0.10 in. of rain possible, AM snow level 3,500 ft.), a (30%) chance of showers Sunday night (evening snow level 3,500 ft.),
- Mostly cloudy with a good (50%) chance of AM showers, showers Monday afternoon (under 0.10 in. of rain possible, snow level 3,000 ft.), evening showers, showers likely (70%) late at night (under 0.10 in. of rain possible, snow level 3,500 ft. falling to 3,000 ft. late at night),
- Mostly cloudy and a bit warmer with a good (50%) chance of showers Tuesday, a good (50%) chance of evening showers, then showers likely (70%) Tuesday night.
- lows 42-45 highs 56-60.
- Mostly cloudy and a bit cooler with showers Wednesday, showers Wednesday night,
- Mostly cloudy with AM rain and snow showers, showers and a bit cooler Thursday afternoon, rain and snow showers likely (70%) at night,
- Mostly cloudy with AM rain and snow showers, showers and a bit warmer Friday afternoon, a good (50%) chance of showers Friday night,
- Then mostly cloudy and a bit warmer with a (30%) chance of showers Saturday.
- highs 56-53 warming to 60 Friday lows 43-39. (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 evening showers and a slight (20%) chance of thunderstorms and a good (50%) chance of coastal showers late tonight while a slight (20%) chance of inland thunderstorms and patchy inland fog with showers late tonight (0.25 in. of rain possible),
- Mostly cloudy with a good (50%) chance of coastal showers Sunday while patchy inland AM fog and a (30%) chance of showers (under 0.10 in. of rain possible), a slight (20%) chance of showers Sunday night,
- Mostly cloudy with AM showers likely (70%), showers Monday afternoon (0.10 in. of rain possible), evening showers likely (70%), a good (50%) chance of showers late at night (under 0.10 in. of rain possible),
- Mostly cloudy and a bit warmer with a good (50%) chance of showers Tuesday and in the evening, then showers likely (70%) Tuesday night.
- lows near 43 highs near 55.
- Mostly cloudy and a bit cooler with showers and breezy Wednesday, showers and breezy Wednesday night,
- Mostly cloudy with showers and a bit cooler and breezy Thursday, showers at night,
- Mostly cloudy and a bit warmer with showers Friday, evening showers likely (70%), a good (50%) chance of showers Friday night,
- Then mostly cloudy and a bit warmer with a (40%) chance of showers Saturday.
- highs 55-53 warming to 58 Saturday 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:
- Partly cloudy with a good (50%) chance of rain and snow showers and a slight (20%) chance of thunderstorms this evening, evening snow showers with rain showers likely (70%) late tonight (under 0.10 in. of rain possible, little or now snow accumulation expected),
- Mostly cloudy with a good (50%) chance of AM rain and snow showers, rain and snow showers likely (70%) and a bit cooler Sunday afternoon (0.10 in. of rain possible), rain and snow Monday night,
- Mostly cloudy with snow and rain likely (70%) Tuesday, then rain and snow likely (70%) Tuesday night.
- snow level 3,500 ft. tonight, 3,000 ft. Sunday, 3,500 ft. Sunday night through Tuesday, then 4,500 ft. Tuesday night.
- lows 27-29 warming to 30 Tuesday night highs 37-39.
- Mostly cloudy with rain and snow Wednesday, snow and rain Wednesday night,
- Mostly cloudy and a bit cooler with snow and rain Thursday, snow and rain likely (70%) at night,
- Mostly cloudy with snow and rain and a bit warmer Friday, a good (50%) chance of rain and snow Friday night,
- Then snow likely (70%) with a good (50%) chance of rain and a bit warmer Saturday.
- snow level 4,500 ft.Wednesday, 3,000 ft. Wednesday night through Thursday night, then 3,500 ft. Friday through Saturday.
- highs 39-35 warming to 40 Saturday lows near 27.
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