Apr
10.
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 next frontal system moving through Pacific Northwest Thursday. The graphics for days 3-7 Saturday through Wednesday show a frontal system moving over the Pacific Northwest between Sunday and Monday.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 23 in the Good category measuring Particulate Matter.
Oakridge: The Air Quality Index is 9 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 21 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.
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:
- Becoming partly cloudy late tonight,
- A mix of clouds and sun, becoming mostly cloudy with sun breaks and a bit cooler Thursday afternoon, mostly cloudy with a (30%) chance of evening rain, rain likely (70%) late Thursday night (under 0.10 in. of rain possible),
- Mostly cloudy with AM rain likely (70%), a bit cooler a good (50%) chance of showers Friday afternoon, a (40%) chance of evening showers, a slight (20%) chance of showers late at night,
- Mostly sunny and a bit warmer with a slight (20%) chance of showers Saturday, then partly cloudy with a slight (20%) chance of showers Saturday night,
- lows 40-46 cooling to 42 Saturday night highs 62-60 warming to 67 Saturday.
- Mostly sunny and a bit cooler Sunday, partly cloudy in the evening, mostly cloudy late Sunday night,
- A mix of clouds and sun and a bit cooler with a slight (20%) chance of showers Monday, partly cloudy with a slight (20%) chance of showers at night,
- Mostly sunny and a bit cooler with a (40%) chance of showers Tuesday, partly cloudy in the evening, mostly clear late Tuesday night,
- Then sunny and a bit warmer Wednesday.
- highs 62-57 warming back to 62 Wednesday lows 42-36. (seasonal averages high 60 low 39)
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EUGENE-SPRINGFIELD POLLEN COUNT:
GRASS: ABSENT (0)
TREES: HIGH (168)
WEEDS: ABSENT (0)
Measured 4.10.24
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 with patchy fog late tonight,
- Patchy A fog, mostly cloudy and a bit cooler Thursday, a slight (20%) chance of evening showers, showers likely (70%) with patchy fog late Thursday night,
- Mostly cloudy and a bit cooler with showers likely (70%) Friday, a (40%) chance of showers Friday night,
- Mostly cloudy and a bit warmer with a (30%) chance of showers Saturday, then a (30%) chance of showers Saturday night.
- lows 43-47 cooling to 44 Saturday night highs 66-60 warming to 65 Saturday.
- Mostly cloudy with a slight (20%) chance of AM showers, just partly cloudy and a bit cooler Sunday afternoon, partly cloudy in the evening, mostly cloudy late Sunday night,
- Mostly cloudy with a (20%) chance of AM showers, partly cloudy and a bit cooler with a slight (20%) chance of showers Monday afternoon, partly cloudy with a slight (20%) chance of evening rain and snow showers at night,
- Partly cloudy with a slight (20%) chance of rain and snow showers and a bit cooler with a slight (20%) chance of rain and snow showers Tuesday afternoon, a slight (20%) chance of evening showers, mostly clear late Tuesday night,
- Then sunny and a bit warmer Wednesday.
- highs 63-57 warming back to 63 Wednesday lows 42-38. (seasonal averages high 62 low 42)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Becoming mostly cloudy late tonight,
- Patchy AM fog, mostly cloudy and a bit cooler Thursday afternoon, cloudy with a slight (20%) chance of evening showers, showers late Thursday night with patchy fog (under 0.10 in. of rain possible),
- Cloudy with AM showers, a good (50%) chance of coastal showers Friday afternoon while inland showers likely (70%) Friday afternoon, mostly cloudy with a (40%) chance of showers Friday night,
- Then mostly cloudy and a bit warmer with a slight (20%) chance of showers Saturday and Saturday night.
- lows 42-45 cooling to 44 Friday night and Saturday night highs 57-59.
- Mostly cloudy and a bit cooler Sunday, then mostly cloudy Sunday night,
- Mostly cloudy with a slight (20%) chance of AM showers, partly cloudy and a bit cooler Monday afternoon, partly cloudy with a slight (20%) chance of showers late at night,
- Mostly cloudy with a slight (20%) chance of showers Tuesday and in the evening, mostly clear Tuesday night,
- Then sunny and a bit warmer Wednesday.
- highs 57-55 warming to 59 Wednesday lows 42-39. (seasonal average high 56 low 43)
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Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Mostly cloudy tonight,
- 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 and snow late Thursday night,
- Mostly cloudy with AM rain and snow likely (70%), showers and a bit cooler Friday afternoon, evening showers likely (70%), a good (50%) chance of showers at night (under 0.10 in. of rain possible),
- A mix of clouds and sun with a good (50%) chance of showers and a bit warmer Saturday, then mostly cloudy with a good (50%) chance of rain showers and a slight (20%) chance of snow showers Saturday night.
- free air freezing level 10,000 ft. falling to 9,000 ft. late tonight, 9,000 ft. Thursday, snow level 5,500 ft. Thursday night, 5,000 ft. rising to 6,000 ft. Friday afternoon, then 6,500 ft. Friday night and Saturday, then 7,000 Saturday night.
- lows 33-35 cooling back to 33 Saturday night highs 54-47 warming to 53 Saturday.
- Mostly cloudy and a bit cooler with a slight (20%) chance of rain and snow showers Sunday, partly cloudy with a slight (20%) chance of evening rain and snow showers, mostly cloudy with a slight (20%) chance of rain and snow showers Sunday night,
- A mix of clouds and sun with a good (50%) chance of rain and snow showers and a bit cooler Monday afternoon, mostly cloudy with a good (50%) chance of snow and rain showers at night,
- A mix of clouds and sun and a bit cooler with a good (50%) chance of snow and rain showers Tuesday, mostly cloudy with a slight (20%) chance of evening rain and snow showers, partly cloudy with a slight (20%) chance of rain and snow showers late Tuesday night,
- Mostly sunny and a bit warmer with a slight (20%) chance of showers Wednesday.
- snow level 5,000 ft. Sunday, 4,500 ft. Sunday night, 3,500 ft. Monday, 3,000 ft. Monday night and Tuesday, then 3,500 ft. Tuesday night and Wednesday.
- highs 54-47 warming to 53 Saturday lows 30-24.
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