May
31.
Here is my weekly weather quiz question. “What is a “Rocketsonde?”
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An Upper Level High Pressure Ridge (“Arch” shape ) is approaching the West Coast. The graphics for days 1-3 show no frontal systems approaching the Pacific Northwest until Sunday. The graphics for days 3-7 Monday through Friday show a cold front that will be moving through Oregon Monday followed closely by another complex frontal system next Wednesday.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 41 in the Good category measuring Ozone.
Oakridge: The Air Quality Index is 14 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 14 in the Good category measuring Particulate Matter.
Data courtesy of Lane Regional Air Protection Agency (LRAPA.org)
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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:
- Partly cloudy tonight,
- A mix of clouds and sun and a bit cooler Saturday, mostly cloudy with a (40%) chance of rain late Saturday night,
- Mostly cloudy with a good (50%) chance of AM rain, rain and a bit warmer Sunday afternoon (under 0.10 in. of rain possible), rain at night (1.00 in. of rain possible),
- Mostly cloudy with rain Monday, then a slight (20%) chance of rain Monday night.
- lows 48-56 cooling to 50 Monday night high 73-66.
- A mix of clouds and sun and a bit warmer with a slight (20%) chance of rain Tuesday, partly cloudy with a slight (20%) chance of showers Tuesday night,
- Mostly sunny and a bit warmer Wednesday, mostly clear at night,
- Sunny and a bit warmer Thursday, mostly clear Thursday night,
- Then mostly sunny and a bit warmer Friday.
- highs 73-85 lows 52-54. (seasonal averages high 71 low 46)
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EUGENE-SPRINGFIELD POLLEN COUNT:
GRASS: HIGH VERY (361)
TREES: MODERATE (25)
WEEDS: LOW (5)
Measured 5.31.24
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 clear this evening, partly cloudy late tonight,
- Partly cloudy start, mostly cloudy and a bit cooler Saturday and Saturday night,
- Mostly cloudy and a bit cooler with a (30%) chance of rain Sunday (under 0.10 in. of rain possible), rain at night (0.50 in. of rain possible),
- Mostly cloudy with AM rain, a good (50%) chance of showers and a bit cooler Monday afternoon, then a slight (20%) chance of showers Monday night.
- lows 50-59 cooling to 52 Monday night highs 77-67.
- Partly cloudy and warmer with a slight (20%) chance of showers Tuesday afternoon, mostly clear in the evening, partly cloudy late Tuesday night,
- Mostly sunny and a bit warmer Wednesday and Thursday, mostly clear both nights,
- Then partly cloudy and a bit warmer Friday.
- highs 68-89 lows 50-57. (seasonal average high 73 low 50)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Partly cloudy this evening, mostly cloudy with patchy fog late tonight,
- Patchy AM and late night fog, mostly cloudy Saturday afternoon and Saturday night,
- Patchy AM fog and a good (50%) chance of rain, rain likely (70%) and a bit cooler Sunday afternoon (0.10 in. of rain possible), rain at night (1.00 in. of rain possible),
- Mostly cloudy with AM rain, a good (50%) chance of rain and a bit cooler Monday afternoon, then just mostly cloudy Monday night.
- lows 47-52 cooling to 49 Monday night highs 64-62.
- Partly cloudy and a bit warmer with a slight (20%) chance of showers Tuesday, partly cloudy in the evening, mostly cloudy late Tuesday night,
- Partly cloudy and a bit cooler Wednesday, partly cloudy at night,
- Partly cloudy and a bit warmer Thursday, partly cloudy Thursday night,
- Then partly cloudy and a bit cooler Friday.
- highs 70-72 cooling back to 70 Friday lows 50-48. (seasonal average high 62 low 50)
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Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Partly cloudy this evening, mostly cloudy late tonight,
- A mix of clouds and sun and a bit cooler Saturday, mostly cloudy with a slight (20%) chance of rain Saturday night,
- Mostly cloudy with rain and a bit cooler Sunday, rain at night,
- Mostly cloudy and a bit cooler with rain Monday, then a (50%) chance of showers Monday night.
- free air freezing level 12,000 ft. tonight, 11,000 ft. Saturday afternoon, snow level 7,500 ft. Saturday night, above 8,000 ft. Sunday night through Monday night.
- lows 42-45 cooling to 38 Monday night highs 60-50.
- Mostly sunny and a bit warmer with a slight (20%) chance of rain Tuesday, partly cloudy with a slight (20%) chance of showers Tuesday night,
- Sunny and warmer Wednesday, mostly clear at night,
- Mostly sunny and a bit warmer Thursday, partly cloudy with a slight (20%) chance of showers Thursday night,
- Then mostly sunny and a bit cooler with a slight (20%) chance of showers Friday.
- snow level above 8,000 ft. Tuesday and Tuesday night, free air freezing level 15,000 ft. Wednesday through Thursday, then snow level above 8,000 ft. Thursday night and Friday.
- highs 63-82 cooling to 78 Friday lows 43-52.
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