Aug
20.
Here is my weekly weather quiz question “What is a “Snow Advisory?”
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An Upper Level Low Pressure Trough keeps the chance of rain around.The graphics for days 1-3 show a frontal system sliding into Oregon today and tonight. The graphics for days 3-7 Saturday through Wednesday show a frontal system to our northwest Tuesday and moving closer to us Thursday.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 30 in the Good category measuring Ozone.
Oakridge: The Air Quality Index is 13 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 19 in the Good category measuring Particulate Matter.
Data courtesy of Lane Regional Air Protection Agency (LRAPA.org)
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ADVISORIES:
- A FIRE WEATHER WATCH IS IN EFFECT FROM THURSDAY MORNING THROUGH THURSDAY EVENING FOR STRONG GUSTY WIND AND LOW RELATIVE HUMIDITY FOR THE SOUTH CENTRAL OREGON DESERT INCLUDING THE BLM LAND IN EASTERN LAKE AND WESTERN HARNEY COUNTIES.
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:
- A mix of clouds and sun and a bit cooler today, mostly cloudy with a good (50%) chance of rain tonight (under 0.10 in. of rain possible),
- Mostly cloudy and a bit warmer with rain likely (70%) Thursday, evening rain likely (70%) Thursday night (0.10 in. of rain possible),
- Mostly cloudy and a bit cooler with rain likely (70%) Friday (0.25 in. of rain possible), then mostly cloudy with a good (50%) chance of rain Friday night.
- highs 78-70 lows 57-52.
- Mostly cloudy start with a good (50%) chance of AM rain, partly cloudy and a bit warmer with a good (50%) chance of showers Saturday afternoon, mostly cloudy with a (30%) chance of evening rain, partly cloudy with a (30%) chance of rain late Saturday night,
- Mostly sunny and a bit warmer Sunday, mostly clear Sunday night,
- Mostly sunny and a bit warmer Monday, mostly clear in the evening, partly cloudy late Monday night,
- Then sunny Tuesday.
- highs 72-83 lows 52-54. (seasonal averages high 84 low 51)
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EUGENE-SPRINGFIELD POLLEN COUNT:
GRASS: LOW (3)
TREES: ABSENT (0)
WEEDS: MODERATE (11)
Last Measured 8.19.24
Data courtesy of Oregon Allergy Associates.
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Forecast for the Umpqua Valley including Roseburg:
- Partly cloudy with patchy AM fog, sunny and a bit cooler this afternoon, mostly cloudy with a slight (20%) chance of showers tonight,
- Mostly cloudy with a (30%) chance of AM showers, showers and cooler Thursday afternoon (under 0.10 in. of rain possible), mostly cloudy with a good (50%) of evening showers, showers likely (70%) late Thursday night (under 0.10 in. of rain possible),
- Mostly cloudy with patchy AM fog and a good (50%) chance of AM showers, a bit warmer with showers likely (70%) and a slight (20%) chance of thunderstorms Friday afternoon, mostly cloudy with a good (50%) chance of showers evening showers, then partly cloudy with a (40%) chance of showers late Friday night.
- highs 84-72 lows 59-55.
- Mostly cloudy and warmer with a (30%) chance of showers Saturday, mostly cloudy with a slight (20%) chance of evening showers, mostly clear with a slight (20%) chance of showers late Saturday night,
- Some AM clouds with a slight (20%) chance of showers, sunny and a bit warmer Sunday afternoon, mostly clear Sunday night,
- Then mostly sunny Monday and Tuesday, mostly clear Monday night.
- highs 82-84 lows 54-57. (seasonal averages high 85 low 57)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Mostly cloudy with patchy AM inland fog, partly cloudy and a bit cooler this afternoon, mostly cloudy with a slight (20%) chance of evening coastal showers and coastal showers likely (70%) with patchy fog late tonight while mostly cloudy with a slight (20%) chance of inland showers tonight (under 0.10 in. of rain possible),
- Mostly cloudy with patchy AM fog and coastal showers likely (70%) with coastal showers and a bit cooler Thursday afternoon while patchy AM fog and a good (50%) chance of inland showers with showers likely (70%) and a bit cooler Thursday afternoon with a slight (20%) of inland thunderstorms (under 0.10 in. of rain possible, more in storms), then mostly cloudy with a good (50%) chance of evening showers, showers likely (70%) Thursday night with patchy coastal fog late at night (0.10 in. of rain possible),
- Mostly cloudy with AM showers likely (70%), showers likely (70%) and a bit cooler with showers likely (70%) and a slight (20%) chance of thunderstorms Friday afternoon, mostly cloudy with a good (50%) of evening showers, then partly cloudy with a (40%) chance of showers late Friday night.
- highs 69-65 lows 58-54.
- Mostly cloudy and a bit warmer with a (30%) chance of showers Saturday, partly cloudy with a slight (20%) chance of showers Saturday night,
- Some AM clouds with a slight (20%) chance of AM showers, sunny and a bit warmer Sunday afternoon, mostly clear at night,
- Then mostly sunny Monday and Tuesday, mostly clear Monday night.
- highs 67-70 lows 57-59 cooling back to 57 Sunday night. (seasonal average high 67 low 54)
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Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Mostly sunny and a bit cooler today, mostly cloudy with a (40%) chance of rain late tonight,
- Mostly cloudy and a bit cooler with rain likely (70%) Thursday, rain with a slight (20%) chance of thunderstorms at night,
- Mostly cloudy and a bit cooler with showers and a slight (20%) chance of thunderstorms Friday, mostly cloudy with showers likely (70%) and a slight (20%) chance of thunderstorms Friday night.
- free air freezing level 12,000 ft. today, snow level above 8,000 ft. tonight through Thursday night, 7,500 ft. Friday, then 8,000 ft. Friday night.
- highs 65-52 lows 43-38.
- Mostly cloudy and a bit cooler with a good (50%) chance of rain Saturday, mostly cloudy with a (40%) chance of rain Saturday night,
- Mostly sunny and warmer with a slight (20%) chance of rain Sunday, just partly cloudy a night,
- Sunny and warmer Monday, partly cloudy Monday night,
- Then mostly sunny Tuesday.
- snow level 8,000 ft. Saturday, above 8,000 ft. Saturday night, free air freezing level 14,000 ft. Sunday, 14,000 ft. Sunday night and Monday, then 15,000 ft. Monday night and Tuesday.
- highs 49-70 lows 38-46.
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