Here is my weekly weather quiz question for the last time. “What is the “Santa Ana Wind?” Here is the correct answer. The Santa Ana Wind: In southern California, a weather condition in which strong, hot, dust-bearing winds descend to the Pacific Coast around Los Angeles from inland desert regions. A frontal system will be well offshore Next Saturday.
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An Upper Level Low Pressure Trough (“U” shape) brings Summer heat. The graphics for days 1-3 show a frontal system sliding into Oregon over last night, but not much change except for some cooling and maybe a light sprinkle. The graphics for days 3-7 Wednesday through Sunday show no frontal systems pushing through the Pacific Northwest until a cold front moves through between Wednesday and next Thursday.
ADVISORIES:
- A RED FLAG WARNING IS IN EFFECT FROM 1 PM UNTIL 8 PM TODAY FOR WIND AND LOW RELATIVE HUMIDITY FOR THE LOWER COLUMBIA BASIN OF OREGON.
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.
Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:
- AM clouds with a slight (20%) chance of showers, mostly sunny and a bit cooler this afternoon, mostly clear tonight,
- Then sunny and a bit warmer Monday and Tuesday, clear both nights,
- highs 83-84 lows 49-52.
- Mostly sunny and a bit cooler Wednesday, mostly cloudy in the evening, partly cloudy late Wednesday night,
- A mix of clouds and sun and and a bit cooler with a slight (20%) chance of showers Thursday, partly cloudy at night,
- Then mostly sunny and a bit warmer Friday and Saturday, partly cloudy Friday night,
- highs 78-74 warming to 82 Saturday lows 52-48 warming to 50 Saturday. (seasonal averages high 76 low 49)
Forecast for the Umpqua Valley including Roseburg:
- AM clouds with a slight (20%) chance of rain, sunny and cooler this afternoon, mostly clear tonight,
- Sunny and a bit warmer Monday, clear with patchy fog at night,
- Sunny and a bit warmer Tuesday, then mostly clear Tuesday night.
- highs 79-87 lows 52-55.
- Mostly sunny and a bit cooler Wednesday, partly cloudy Wednesday night,
- Partly cloudy and a bit cooler Thursday partly cloudy at night,
- Partly cloudy and a bit warmer Friday, mostly clear Friday night,
- Then mostly sunny and a bit warmer Saturday.
- highs 82-76 warming to 84 Saturday lows near 55-52. (seasonal average high 79 low 54)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Mostly cloudy with a slight (20%) chance of AM rain, sunny and a bit warmer this afternoon, mostly clear this evening, partly cloudy with patchy inland fog late fog tonight,
- Patchy AM inland fog, sunny and a bit warmer Monday, mostly clear with patchy fog late at night,
- Partly cloudy with patchy AM fog, sunny Tuesday afternoon, then mostly clear in the evening, partly cloudy late Tuesday night.
- highs 68-70 lows 47-49.
- Partly cloudy Wednesday, mostly cloudy Wednesday night,
- Partly cloudy and a bit cooler Thursday, partly cloudy at night,
- Then partly cloudy and a bit warmer Friday and Saturday, partly cloudy Friday night.
- highs 68-69 lows 48-50. (seasonal average high 64 low 52)
Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- A slight (20%) chance of AM showers, mostly sunny and a bit cooler this afternoon, mostly clear tonight,
- Sunny and a bit warmer Monday, clear at night,
- Sunny and a bit warmer Tuesday, then mostly clear Tuesday night.
- snow level 7,500 ft. today, then free air freezing level 15,000 ft. falling to 14,000 ft. Sunday night, then 14,000 ft. Monday through Tuesday night.
- highs 76-74 lows 42-45.
- Sunny and a bit cooler Wednesday, partly cloudy with a slight (20%) chance of evening showers, mostly cloudy with a slight (20%) chance of showers late Wednesday night,
- Mostly sunny and cooler with a slight (20%) chance of showers Thursday, partly cloudy with a slight (20%) chance of showers at night,
- Then mostly sunny and a bit warmer Friday and Saturday, partly cloudy Friday night.
- free air freezing level 11,000 ft. Wednesday, snow level above 8,000 ft. Wednesday night, 8,000 ft. Thursday and Thursday night, free air freezing level 12,000 ft. Friday, then 14,000 fr. Friday night and Saturday.
- highs 68-58 warming to 73 Saturday lows 42-38 cooling back to 42 Friday night.