Aug
16.
Here is my weekly weather quiz question “What is “Snotel?”
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An Upper Level Low Pressure Area will be ushering in marine moisture which means we’ll get weekend rain chances. The graphics for days 1-3 show a frontal system moving into Oregon Friday. The graphics for days 3-7 Monday through Friday show a frontal system pushing into California Wednesday.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 37 in the Good category measuring Particulate Matter.
Oakridge: The Air Quality Index is 81 in the Moderate category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 48 in the Moderate category measuring Particulate Matter.
Data courtesy of Lane Regional Air Protection Agency (LRAPA.org)
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ADVISORIES:
- A RED FLAG WARNING IS IN EFFECT FROM 1 PM MDT UNTIL 8 PM MDT SATURDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR THE BURNS BLM AND THE VALE BLM.
- A RED FLAG WARNING IS IN EFFECT FROM 1 PM UNTIL 9 PM SATURDAY FOR ABUNDANT LIGHTNING ON DRY FUELS FOR THE UMPQUA BASIN, THE UMPQUA NATIONAL FOREST, THE WESTERN ROGUE BASIN INCLUDING THE ILLINOIS VALLEY, THE SISKIYOU MOUNTAINS, THE EASTERN ROGUE VALLEY, AND THE SOUTHERN OREGON CASCADES.
- A RED FLAG WARNING IS IN EFFECT FROM SATURDAY AFTERNOON THROUGH SATURDAY EVENING FOR STRONG GUSTY WIND AND LOW RELATIVE HUMIDITY FOR THE KLAMATH BASIN AND THE SOUTH CENTRAL OREGON DESERT INCLUDING THE BLM LAND IN EASTERN LAKE AND WESTERN HARNEY COUNTIES.
- A RED FLAG WARNING IS IN EFFECT FROM 1 PM UNTIL 8 PM SATURDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR THE SOUTHERN BLUE AND STRAWBERRY MOUNTAINS.
- A FIRE WEATHER WATCH IS IN EFFECT FROM SATURDAY AFTERNOON THROUGH LATE SATURDAY NIGHT FOR ABUNDANT LIGHTNING FOR THE LOWER COLUMBIA BASIN OF OREGON.
- AN AIR QUALITY ADVISORY IS IN EFFECT UNTIL 5 PM MONDAY DUE TO WILDFIRE SMOKE FOR DESCHUTES COUNTY.
- AN AIR QUALITY ALERT IS IN EFFECT UNTIL NOON MONDAY DUE TO WILDFIRE SMOKE FOR KLAMATH AND LAKE COUNTIES.
- A FLASH FLOOD WATCH IS IN EFFECT FROM SATURDAY AFTERNOON THROUGH LATE SATURDAY NIGHT FOR THE NORTH OREGON CASCADES, THE CASCADES OF MARION AND LINN COUNTIES, AND THE CASCADES OF LANE COUNTY.
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,
- A mix of clouds and sun and a bit cooler with showers likely (70%) and a (30%) chance of thunderstorms Saturday afternoon (0.25 in. of rain possible, more in storms), mostly cloudy with evening showers likely (70%) and a slight (20%) chance of thunderstorms, a (%) chance of showers and a slight (20%) chance of thunderstorms late Saturday night,
- Patchy AM fog, a mix of clouds and sun and a bit warmer with a (40%) chance of rain Sunday afternoon, mostly clear in the evening, partly cloudy with patchy fog late Sunday night,
- A mix of clouds and sun Monday, then partly cloudy Monday night.
- lows 56-53 highs 80-82.
- A mix of clouds and sun and a bit warmer Tuesday, mostly cloudy with a slight (20%) chance of rain Tuesday night,
- Mostly sunny and a bit cooler with a slight (20%) chance of rain Wednesday, partly cloudy in the evening, mostly cloudy late Wednesday night,
- A mix of clouds and sun and a bit warmer with a slight (20%) chance of rain Thursday, partly cloudy Thursday night,
- Then a mix of clouds and sun with a slight (20%) chance of rain Friday.
- highs 83-79 warming to 82 Thursday and Friday lows 55-53. (seasonal averages high 84 low 52)
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EUGENE-SPRINGFIELD POLLEN COUNT:
GRASS: LOW (3)
TREES: ABSENT (0)
WEEDS: LOW (2)
Last Measured 8.14.24
Data courtesy of Oregon Allergy Associates.
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Forecast for the Umpqua Valley including Roseburg:
- Becoming partly cloudy late tonight,
- Mostly cloudy with a good (50%) chance of AM showers and a slight (20%) chance of thunderstorms, showers and a (30%) chance of thunderstorms Saturday afternoon, evening showers likely (70%) with a (30%) chance of thunderstorms, showers with a slight (20%) of thunderstorms late Saturday night,
- Partly cloudy with a (30%) chance of AM showers, partly cloudy with a (30%) chance of showers Sunday afternoon, mostly clear in the evening, partly cloudy late at night,
- Partly cloudy and a bit warmer Monday, then partly cloudy Monday night.
- lows 60-56 highs 82-84.
- Partly cloudy and a bit warmer Tuesday, partly cloudy with a slight (20%) chance of showers Tuesday night,
- Partly cloudy and a bit cooler with a slight (20%) chance of showers Wednesday, partly cloudy at night,
- Mostly cloudy with a slight (20%) chance of AM showers, just partly cloudy Thursday afternoon, just partly cloudy Thursday night,
- Mostly cloudy with a slight (20%) chance of AM showers, then partly cloudy with a slight (20%) chance of showers Friday afternoon.
- highs 85-83 lows near 57. (seasonal averages high 86 low 57)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend
- Increasing clouds to mostly cloudy late tonight,
- Mostly cloudy with a good (5%) chance of AM showers and a slight (20%) chance of thunderstorms, a bit warmer with showers and a slight (20%) chance of thunderstorms Saturday afternoon, mostly cloudy evening showers likely (70%) and a slight (20%) chance of thunderstorms, a good (50%) chance of showers late Saturday night,
- Mostly cloudy with a (40%) chance of coastal showers and a bit warmer while partly cloudy with with a (40%) chance of AM inland showers and mostly cloudy with a (40%) chance of inland showers Sunday afternoon, just partly cloudy Sunday night,
- Mostly cloudy start, partly cloudy and a bit cooler Monday afternoon, then mostly cloudy Monday night.
- lows 56-59 cooling to 54 Monday night highs 67-69.
- Mostly cloudy and a bit warmer with a slight (20%) chance of showers Tuesday afternoon and Tuesday night.
- Mostly cloudy with a slight (20%) chance of AM showers, partly cloudy with a slight (20%) chance of showers Wednesday afternoon, partly cloudy in the evening, mostly cloudy at night,
- Mostly cloudy with a slight (20%) chance of showers Thursday and Thursday night,
- Then mostly cloudy with a slight (20%) chance of showers Friday.
- highs 70-65 warming to 67 Thursday and Friday lows 53-58 . (seasonal average high 67 low 54)
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Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Mostly clear this evening, partly cloudy late tonight,
- Sunny start, a mix of clouds and sun and a bit cooler with showers and a slight (20%) chance of thunderstorms Saturday afternoon (0.10 -1.00 in. of rain possible, heavy rain possible in storms), mostly cloudy with evening showers with thunderstorms likely (70%), a good (50%) chance of showers and a slight (20%) chance of thunderstorms late Saturday night (0.10-0.25 in. of rain possible, more possible in storms),
- Mostly sunny and a bit cooler with a slight (20%) chance of rain Sunday, just partly cloudy late at night,
- Mostly sunny and a bit warmer Monday, partly cloudy in the evening, mostly cloudy late Monday night.
- free air freezing level 12,000 ft. today, snow level above 8,000 ft, tonight through Sunday, free air freezing level 11,000 ft. Saturday night, snow level above 8,000 ft. Sunday, then free air freezing level 12,000 ft. Sunday night.
- lows 46-42 highs 68-63.
- Mostly sunny and a bit warmer Tuesday, partly cloudy in the evening, mostly cloudy with a slight (20%) chance of rain at night,
- Mostly sunny and a bit cooler with a slight (20%) chance of rain Wednesday, partly cloudy in the evening, mostly cloudy late Wednesday night,
- Mostly sunny and a bit warmer Thursday, partly cloudy in the evening, mostly cloudy late Thursday night,
- Then mostly sunny and a bit warmer with a slight (20%) chance of rain Friday.
- free air freezing level 12,000 ft. Monday, 13,000 ft. Monday night, 12,000 ft. Tuesday, snow level above 8,000 ft. Tuesday night, free air freezing level 12,000 ft. Wednesday night and Thursday, 13,000 ft. Thursday night, then snow level above 8,000 ft. Friday.
- highs 67-65 lows near 43.
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