May
17.
Here is my weekly weather quiz question. “What is “Rime Ice?”
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An Upper Level High Pressure Ridge (“Arch” shape ) is approaching the West Coast. The graphics for days 1-3 show a weak frontal wave moving across Oregon this evening. The graphics for days 3-7 Sunday through Thursday show a front that slides through between Tuesday and next Wednesday and another cold front approaching next Friday.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 37 in the Good category measuring Ozone.
Oakridge: The Air Quality Index is 12 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 10 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 clear tonight,
- Mostly sunny and a bit cooler Saturday, mostly clear in the evening, partly cloudy late Saturday night,
- Mostly sunny Sunday, partly cloudy in the evening, mostly clear late at night,
- Sunny and a bit warmer Monday, mostly clear Monday night.
- lows 42-40 warming to 43 Monday night highs 65-70.
- A mix of clouds and sun and a bit cooler with a slight (20%) chance of rain Tuesday, mostly cloudy with a good (50%) chance of rain Tuesday night,
- A mix of clouds and sun with a good (50%) chance of showers Wednesday, partly cloudy with a slight (20%) chance of showers at night,
- Mostly sunny and a bit warmer with a slight (20%) chance of showers Thursday, just partly cloudy Thursday night,
- Then mostly sunny and a bit warmer with a slight (20%) chance of showers Friday.
- highs 66-68 lows 47-44 warming to 46 Thursday night (seasonal averages high 69 low 44)
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EUGENE-SPRINGFIELD POLLEN COUNT:
GRASS: HIGH (48)
TREES: MODERATE (44)
WEEDS: ABSENT (0)
Measured 5.17.24
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 tonight,
- Some AM clouds, sunny and a bit cooler Saturday afternoon, mostly clear in the evening, partly cloudy late Saturday night,
- Partly cloudy and a bit cooler Sunday, mostly clear at night,
- Mostly sunny and a bit warmer Monday, then mostly clear Monday night.
- lows 42-44 highs 70-65 warming to 72 Monday.
- Partly cloudy start, mostly cloudy with a slight (20%) chance of showers Tuesday afternoon, mostly cloudy with a slight (2o%) chance of showers Tuesday night,
- Mostly cloudy with a slight (20%) chance of AM showers, partly cloudy and a bit cooler with a slight (20%) chance of showers Wednesday afternoon, partly cloudy with a slight (20%) chance of showers at night,
- Partly cloudy with a slight (20%) chance of showers and a bit warmer Thursday, just partly cloudy Thursday night,
- Then partly cloudy with a slight (20%) of showers Friday.
- highs 72-68 warming to 70 Friday lows 50-45 warming to 47 Thursday night. (seasonal average high 72 low 48)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Mostly clear with patchy fog late tonight,
- Some AM clouds, sunny Sunday, mostly clear Saturday night,
- Partly cloudy with patchy AM coastal fog, partly cloudy and a bit cooler Sunday afternoon, mostly clear at night,
- Mostly sunny and a bit warmer Monday, mostly clear Monday night,
- Partly cloudy start, mostly cloudy with a slight (20%) chance of showers Tuesday afternoon, mostly cloudy with a slight (20%) chance of showers Tuesday night.
- lows 42-44 highs 59-62.
- Mostly cloudy with a slight (20%) chance of AM showers, partly cloudy and a bit cooler with a slight (20%) chance of showers Wednesday afternoon, partly cloudy with a slight (20%) chance of showers late at night,
- Partly cloudy and a bit warmer Thursday, partly cloudy Thursday night,
- Mostly cloudy with a slight (20%) chance of AM showers, then just partly cloudy Friday afternoon.
- highs 62-59 warming back to 62 Thursday lows 47-45. (seasonal average high 61 low 48)
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Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Clear tonight,
- Sunny and a bit cooler Saturday, partly cloudy with a slight (20%) of evening showers, mostly cloudy with a slight (20%) chance of rain and snow Saturday night,
- A slight (20%) chance of AM snow, mostly sunny Sunday afternoon, just partly cloudy at night,
- Sunny and a bit warmer Monday, mostly clear Monday night.
- free air freezing level 10,000 ft. tonight, 10,000 ft. falling to 8,000 ft. Saturday afternoon, snow level 5,500 ft. falling to 4,000 ft. late Saturday night, 3,500 ft. Sunday morning, free air freezing level 6,000 ft. falling to 5,500 ft. late Sunday night, 7,500 ft. Monday, then 9,000 ft. Monday night.
- lows 34-29 highs 55-47 warming to 56 Monday.
- Mostly sunny and a bit cooler with a slight (20%) chance of rain Tuesday, mostly cloudy with rain likely (70%) Tuesday night,
- A mix of clouds and sun and a bit cooler with a good (50%) chance of rain and snow showers Wednesday, mostly cloudy with a good (50%) chance of evening rain and snow showers, partly cloudy with a slight (20%) chance of rain and snow showers at night,
- Mostly sunny and a bit warmer with a (30%) chance of snow showers and a slight (20%) chancre of rain showers Thursday, partly cloudy with a slight (20%) chance of rain and snow showers Thursday night,
- Then mostly sunny with a (40%) chance of showers Friday.
- snow level 6,500 ft. Tuesday, 7,000 ft. Tuesday night, 5,500 ft. Wednesday, 5,000 ft. Wednesday night, 5,500 ft. Thursday, then 6,500 ft. Thursday night and Friday.
- highs 54-50 warming to 55 Friday lows 37-32 warming to 35 Thursday night.
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