Apr
09.
Here is my weekly weather quiz question. “What is a “Radiosonde?”
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An Upper Lever High Pressure Ridge brings the Pacific Northwest sunshine. The graphics for days 1-3 show the weak frontal system that moved through Pacific Northwest today having little influence except a few sprinkles. The graphics for days 3-7 Friday through Tuesday show frontal systems moving over the Pacific Northwest Friday and Sunday through Monday.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 7 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 6 in the Good category measuring Particulate Matter.
Data courtesy of Lane Regional Air Protection Agency (LRAPA)
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ADVISORIES:
- A FLOOD WARNING IS IN EFFECT UNTIL LATE FRIDAY EVENING FOR THE OWYHEE RIVER BELOW THE OWYHEE DAM AFFECTING MALHEUR COUNTY.
- A FROST ADVISORY IS IN EFFECT FROM MIDNIGHT TONIGHT UNTIL 9 AM WEDNESDAY FOR THE NORTH OREGON COAST LOWLANDS, THE NORTH OREGON COAST RANGE, AND THE UPPER HOOD RIVER VALLEY.
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:
- Partly cloudy tonight,
- Mostly sunny and a bit warmer Wednesday, partly cloudy Wednesday night,
- A mix of clouds and sun and a bit cooler Thursday, mostly cloudy with a slight (20%) chance of evening rain, a good (50%) chance of rain late at night,
- Mostly cloudy and cooler a good (50%) chance of rain Friday, then a good (50%) chance of showers Friday night.
- lows 38-44 highs 66-62.
- A mix of clouds and sun and a bit warmer with a (40%) chance of showers Saturday, mostly cloudy with a (40%) chance of showers Saturday night,
- Mostly cloudy and a bit cooler with a (40%) chance of showers Sunday, a slight (20%) chance of showers at night,
- A mix of clouds and sun and a bit cooler with a good (50%) chance of showers Monday, mostly cloudy with a (40%) chance of showers Monday night,
- Then a mix of clouds and sun and a bit cooler with a good (50%) chance of showers Tuesday.
- highs 68-57 lows 44-37. (seasonal averages high 60 low 39)
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EUGENE-SPRINGFIELD POLLEN COUNT:
GRASS: ABSENT (0)
TREES: HIGH (184)
WEEDS: ABSENT (0)
Measured 4.9.24
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:
- Becoming mostly cloudy with patchy fog late tonight,
- Patchy AM and late night fog, partly cloudy and a bit warmer Wednesday afternoon, mostly cloudy in the evening, partly cloudy late Wednesday night,
- Partly cloudy and a bit cooler Thursday, a slight (20%) chance of evening rain, mostly clear with patchy fog late at night,
- Mostly cloudy and cooler with showers likely (70%) Friday, then a good (50%) chance of showers Friday night.
- lows 42-46 highs 72-64.
- Mostly cloudy and a bit warmer with a (30%) chance of showers Saturday, a (30%) chance of showers Saturday night,
- Mostly cloudy with a (30%) chance of showers and a bit warmer Sunday, a slight (20%) chance of showers at night,
- Mostly cloudy with a (20%) chance of showers and a bit cooler Monday, partly cloudy with a slight (20%) chance of evening showers, a slight (20%) chance of rain and snow showers late Monday night,
- Partly cloudy with a slight (20%) chance of AM rain and snow showers, then mostly cloudy and a bit cooler with a (30%) chance of showers Tuesday afternoon.
- highs 68-58 lows 46-39. (seasonal averages high 62 low 42)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Partly cloudy this evening, mostly cloudy with patchy inland fog late tonight,
- Patchy AM and late night fog, partly cloudy and a bit warmer Wednesday, partly cloudy Wednesday night,
- Patchy AM fog, mostly cloudy and a bit cooler Thursday afternoon, mostly cloudy with a good (50%) chance of evening showers, showers likely (70%) late at night (under 0.10 in. of rain possible),
- Mostly cloudy with AM showers likely (70%), a good (50%) chance of showers Friday afternoon, then a (40%) chance of showers Friday night.
- lows near 42 highs 58-60 cooling back to 58 Thursday.
- Mostly cloudy and a bit warmer with a (30%) chance of showers Saturday and Saturday night,
- Mostly cloudy with a (30%) chance of showers and a bit cooler Sunday, a slight (20%) chance of showers at night,
- Mostly cloudy and a bit cooler with a slight (20%) chance of showers Monday, partly cloudy with a slight (20%) chance of showers Monday night,
- Then mostly cloudy and a bit cooler with a (30%) chance of showers Tuesday.
- highs 57-59 cooling to cooling to 54 Monday lows 44-42. (seasonal average high 56 low 43)
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Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Partly cloudy tonight,
- Mostly sunny and warmer Wednesday, partly cloudy in the evening, mostly clear late Wednesday night,
- Mostly sunny and a bit cooler Thursday, mostly cloudy with a slight (20%) chance of evening rain, a good (50%) chance of rain and snow late at night,
- Mostly cloudy with rain likely (70%) with snow and a bit cooler Friday, then showers showers likely (70%) with possible snow showers and thunderstorms Friday night.
- free air freezing level 8,000 ft. rising to 9,000 ft. late tonight, 9,000 ft. rising to 10,000 ft. Wednesday afternoon, 10,000 ft. Wednesday night, 9,000 ft. Thursday, snow level 6,000 ft. Thursday night, 6,000 ft. Friday, then 6,500 ft. Friday night.
- lows 30-37 highs 58-52.
- A mix of clouds and sun with a good (50%) of rain and snow showers and a bit warmer Saturday, mostly cloudy with a good (50%) chance of rain and snow showers with a slight (20%) chance of thunderstorms at night,
- Mostly cloudy with a good (50%) chance of AM rain and snow, partly cloudy and a bit cooler with a good (50%) chance of rain and snow Sunday afternoon, mostly cloudy with a good (50%) chance of rain and snow showers Sunday night,
- Mostly cloudy with a good (50%) chance of AM snow and rain showers, partly cloudy and a bit cooler with a good (50%) chance of snow and rain showers Monday afternoon, mostly cloudy with a good (50%) chance of snow and rain showers Monday night,
- Then a mix of clouds and sun and a bit cooler with a good (50%) chance of snow and rain showers Tuesday .
- snow level 6,500 ft. Saturday and Saturday night, 5,000 ft. Sunday, 4,500 ft. Sunday night, 3,500 ft. Monday, 3,000 ft. Monday night, then 3,000 ft. Tuesday.
- highs 56-42 lows 35-25.
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