Apr
22.
Here is my new weekly weather quiz question “What is a “Rear Flank Downdraft?”
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An Upper Level High Pressure Ridge (“Arch” shape) takes over bringing dry weather and sunshine. The graphics for days 1-3 show the next front is on the way. The graphics for days 3-7 Friday through Tuesday show two frontal systems headed our way. One front moves across the Pacific Northwest Friday with another between Sunday and Monday.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 22 in the Good category measuring Particulate Matter.
Oakridge: The Air Quality Index is 13 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 63 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 sunny and a bit warmer today, mostly clear tonight,
- A mix of clouds and sun and a bit cooler Wednesday, partly cloudy at night,
- Mostly cloudy and cooler with rain Thursday, then rain Thursday night.
- highs 73-57 lows 40- 48.
- Mostly cloudy with rain and a bit warmer Friday, a good (50%) chance of rain Friday night,
- Mostly cloudy and a bit warmer with rain likely (70%) and a bit warmer Saturday, mostly cloudy with a good (50%) chance of rain at night,
- Then mostly cloudy with rain likely 70%) Sunday through Monday.
- highs 58-60 lows 4-43. (seasonal averages high 63 low 41)
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EUGENE-SPRINGFIELD POLLEN COUNT:
GRASS: ABSENT (0)
TREES: HIGH (333)
WEEDS: LOW (9)
Measured 4.22.24
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:
- Partly cloudy and a bit warmer today, clear tonight,
- Partly cloudy and a bit cooler Wednesday, partly cloudy at night,
- Mostly cloudy with showers and cooler Thursday, then showers Thursday night,
- highs 75-58 lows 43-49.
- Mostly cloudy with showers Friday, a good (50%) chance of showers Friday night,
- Mostly cloudy and a bit cooler with showers likely (70%) Saturday and at night,
- Mostly cloudy and a bit cooler with a (40%) chance of showers Sunday, a (40%) chance of showers Sunday night,
- Then mostly cloudy with a (40%) chance of showers Monday.
- highs 58-62 cooling to 60 Sunday warming back to 62 Monday lows 46-44. (seasonal averages high 65 low 44)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Mostly cloudy start, sunny this afternoon, mostly clear this evening, mostly cloudy late tonight,
- AM clouds, partly cloudy and a bit cooler Wednesday afternoon, mostly cloudy with a slight (20%) chance of coastal rain late at night,
- Mostly cloudy with showers and a bit cooler Thursday, then showers Thursday night.
- highs 60-56 lows 42-48.
- Mostly cloudy with showers Friday, a good (50%) chance of showers Friday night,
- Mostly cloudy with a good (50%) chance of AM rain, showers likely (70%) Saturday afternoon, a good (50%) chance of showers at night,
- Then mostly cloudy with a good (50%) chance of showers Sunday through Monday.
- highs near 56 lows near 44. (seasonal average high 57 low 45)
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Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Mostly sunny today, mostly clear tonight,
- Mostly sunny and a bit cooler Wednesday, partly cloudy at night,
- Mostly cloudy with rain and snow showers and cooler Thursday, then rain and snow showers Thursday night (snow possibly heavy at times).
- free air freezing level 11,000 ft. tonight, 10,000 ft. Tuesday, 10,000 ft.Tuesday night, 5,000 ft. Wednesday, 5,500 ft. Wednesday night, 5,000 ft. Thursday, then 5,500 ft. Thursday night.
- highs 63-43 lows near 35.
- Mostly cloudy and a bit cooler with rain and snow showers Friday (snow possibly heavy at times), rain and snow showers likely (70%) Friday night,
- Mostly cloudy and a bit warmer with rain and snow showers likely (70%) Saturday, rain and snow showers likely (70%) at night,
- Mostly cloudy and a bit warmer with rain and snow showers likely (70%) Sunday, then rain and snow showers likely (70%) Sunday night and Monday.
- snow level 5,000 ft. Friday through Saturday, 5,500 ft. Saturday night, 5,000 ft. Sunday and Sunday night, then 4,000 ft. Monday.
- highs 40-46 cooling to 43 Monday lows near 32.
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