Aug
21.
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. The graphics for days 3-7 Saturday through Wednesday show a frontal system to our northwest Tuesday and moving closer to us Wednesday.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 27 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 12 in the Good category measuring Particulate Matter.
Data courtesy of Lane Regional Air Protection Agency (LRAPA.org)
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ADVISORIES:
- A FRED FLAG WARNING IS IN EFFECT FROM 11 AM UNTIL 8 PM TODAY 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:
- Cloudy, possible sun breaks, and a bit cooler with good (50%) chance of showers today (0.25 in. of rain possible), showers likely (70%) tonight (0.25 in. to 0.50 in. of rain possible),
- Mostly cloudy and a bit cooler with showers and a slight (20%) chance of thunderstorms Friday (0.25 in. of rain possible), mostly cloudy with a good (50%) chance of showers and a slight (20%) chance of evening thunderstorms, a good (50%) chance of showers late Friday night,
- A mix of clouds and sun with a good (50%) chance of showers and a bit warmer Saturday, then partly cloudy with a slight (20%) chance of showers Saturday night.
- highs 72-70 warming to 73 Saturday lows 53-52.
- Mostly sunny and a bit warmer Sunday, mostly clear Sunday night,
- Sunny and a bit warmer Monday, mostly clear at night,
- Mostly sunny and a bit cooler Tuesday, mostly clear Tuesday night,
- Then sunny and a bit warmer Wednesday.
- highs 79-85 cooling to 82 Tuesday warming to 84 Wednesday lows 52-54 cooling back to 52 Tuesday night. (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:
- Mostly cloudy with a good (50%) of showers and cooler today (under 0.10 in. of rain possible), mostly cloudy with a good (50%) chance of evening showers and a slight (20%) chance of thunderstorms, a (40%) chance of showers late tonight (under 0.10 in. of rain possible),
- Mostly cloudy with a good (50%) chance of AM showers and a slight (20%) chance of thunderstorms, a bit cooler with showers and a slight (20%) chance of thunderstorms Friday afternoon (0.25 in. of rain possible), mostly cloudy with evening showers likely (70%), patchy fog with a slight (20%) chance of showers late Friday night (0.10 in of rain possible),
- Mostly cloudy with patchy AM fog and a slight (20%) chance of showers, partly cloudy and warmer with a slight (20%) chance of showers Saturday afternoon, partly cloudy with a slight (20%) chance of evening showers, then mostly clear with patchy fog late Saturday night.
- highs 72-69 warming to 74 Saturday lows 54-53.
- Patchy AM fog, sunny and warmer Sunday afternoon and mostly clear Sunday night,
- Patchy AM fog, sunny and a bit warmer Monday afternoon, mostly clear at night,
- Then mostly sunny and a bit cooler Tuesday and Wednesday, mostly clear Tuesday night.
- highs 82-88 cooling to 85 Tuesday and Wednesday lows 56-58 cooling to 56 Tuesday night. (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 AM coastal showers likely (70%) and a good (50%) chance of coastal showers and a bit cooler this afternoon while mostly cloudy and a bit cooler with inland showers likely (70%) today (under 0.10 in. of rain possible, more in storms), mostly cloudy with a (40%) chance of evening coastal showers and a slight (20%) chance of coastal thunderstorms and coastal showers likely (70%) tonight while a (30%) chance of inland showers tonight (under 0.10 in. of rain possible),
- Mostly cloudy with showers likely (70%) and a bit cooler Friday (0.25 in. of rain possible), mostly cloudy with a good (50%) of evening coastal showers with a slight (20%) chance of thunderstorms and patchy fog with a good (50%) chance of coastal showers late at night while mostly cloudy with a (30%) chance of evening inland showers and partly cloudy with patchy inland fog with a (40%) chance of showers late Friday night under 0.10 in. of rain possible),
- Mostly cloudy with patchy AM fog and a (30%) chance of showers, partly cloudy and a bit warmer with a (40%) chance of showers Saturday afternoon , partly cloudy with a slight (20%) chance of evening showers, then mostly clear with patchy fog late Saturday night.
- highs 66-64 warming to 67 Saturday lows 54-56 cooling back to 54 Saturday night.
- Some AM clouds with patchy fog, sunny and a bit warmer Sunday afternoon, mostly clear with patchy fog Sunday night,
- Patchy AM fog, mostly sunny and a bit warmer Monday, mostly clear with patchy fog at night,
- Patchy AM fog, sunny and a bit cooler Tuesday afternoon, mostly clear Tuesday night,
- Then mostly sunny Wednesday.
- highs 70-72 cooling to 68 Tuesday and Wednesday lows 58-56 warming to 57 Tuesday night. (seasonal average high 67 low 54)
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Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Cloudy with a slight (20%) chance of AM showers, a bit cooler with showers and a slight (20%) chance of thunderstorms this afternoon (0.25 in. of rain possible), showers with a slight (20%) chance of thunderstorms tonight (0.50 in. of rain possible, more in storms),
- Mostly cloudy and a bit cooler with showers and a slight (20%) chance of thunderstorms Friday, evening showers likely (70%) and a slight (20%) chance of thunderstorms, a good (50%) chance of showers late at night,
- Mostly cloudy and a bit warmer with a good (50%) chance of showers Saturday, then mostly cloudy with a (30%) chance of showers Saturday night.
- snow level above 8,000 ft. today, 8,000 ft. rising to above 8,000 ft. tonight, 7,000 ft. Friday and Friday night, 7,500 ft. Saturday, then above 8,000 ft. Saturday night.
- highs 59-48 warming to 50 Saturday lows 39-37.
- Mostly sunny and warmer Sunday, just partly cloudy Sunday night,
- Sunny and warmer Monday, mostly clear in the evening, partly cloudy late at night,
- Sunny and a bit cooler Tuesday, partly cloudy Tuesday night,
- Then sunny and a bit cooler Wednesday.
- free air freezing level 13,000 ft. Sunday, 15,000 ft. Sunday night and Monday, free air freezing level 15,000 ft. Monday night, 14,000 ft. Tuesday, then 15,000 ft. Tuesday night and Wednesday.
- highs 62-72 cooling to 68 Wednesday lows 43-47 cooling to 42 Tuesday night.
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