May
12.
Here is my new weekly weather quiz question. “What is “Rime Ice?”
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An Upper Level High Pressure Ridge (“Arch” shape ) is taking slowly tilting and moving to the east enhancing cooling. The graphics for days 1-3 show weak frontal waves moving across Oregon Monday and Tuesday for cooling. The graphics for days 3-7 Thursday through Monday show a frontal system sliding through Oregon between Thursday and Friday and another frontal system to our northwest Sunday.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 38 in the Good category measuring Ozone.
Oakridge: The Air Quality Index is 16 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 17 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 cooler today, partly cloudy this evening, mostly clear late tonight,
- Sunny and a bit warmer Tuesday, clear at night,
- Sunny and a bit warmer Wednesday, then clear Wednesday night.
- highs 73-80 lows 46-52.
- Sunny and a bit cooler Thursday and Friday, clear both nights,
- Sunny and a bit cooler Saturday, mostly clear Saturday night,
- Then sunny and a bit warmer Sunday.
- highs 79-70 warming to 73 Sunday lows 47-43 warming to 45 Saturday night (seasonal averages high 68 low 44)
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EUGENE-SPRINGFIELD POLLEN COUNT:
GRASS: HIGH (20)
TREES: MODERATE (65)
WEEDS: LOW (9)
Measured 5.12.24
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:
- Some AM clouds, sunny and a bit cooler this afternoon, mostly clear this evening, partly cloudy late tonight,
- Some AM clouds, sunny Tuesday afternoon, clear at night,
- Sunny and a bit warmer Wednesday, then clear Wednesday night.
- highs 77-85 lows 50-54.
- Sunny and a bit cooler Thursday and Friday, mostly clear both nights,
- Mostly sunny and a bit warmer Saturday, mostly clear at night,
- Then mostly sunny Sunday.
- highs 83-73 warming to 76 Sunday lows 52-45 warming to 47 Saturday night. (seasonal average high 71 low 48)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- AM clouds, sunny and a bit warmer this afternoon, partly cloudy tonight,
- Some AM clouds, sunny and a bit warmer Tuesday afternoon, mostly clear at night,
- Mostly sunny and a bit warmer Wednesday, then mostly clear Wednesday night.
- highs 63-70 lows 46-48.
- Mostly sunny and a bit cooler Thursday, Friday and Saturday, mostly clear each night,
- Then mostly sunny and a bit warmer Sunday.
- highs 66-62 warming to warming to 64 Saturday lows 47-45 warming back to 47 Saturday night. (seasonal average high 60 low 48)
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Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Sunny and a bit cooler today, partly cloudy this evening, mostly clear late tonight,
- Then sunny and a bit warmer Tuesday and Wednesday, clear both nights.
- free air freezing level 11,000 ft. today, 12,000 ft. tonight, 13,000 ft. Tuesday through Wednesday, then 14,000 ft. Wednesday night.
- highs 62-70 lows 38-44.
- Sunny and a bit cooler Thursday, Friday and Saturday, mostly clear each night,
- Then sunny and a bit warmer with a slight (20%) chance of rain Sunday.
- free air freezing level 14,000 ft. Thursday and Thursday night, 13,000 ft. Friday, 10,000 ft. Friday night, 6,500 ft. Saturday, 9,000 ft. Saturday night, then snow level 6,500 ft. Sunday.
- highs 69-60 warming to 63 Sunday lows 42-35 warming to 37 Saturday night.
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