Here is my weekly weather quiz question for the last time. “What is “Smog?” Here is the correct answer. Smog: Originally smog meant a mixture of smoke and fog. Now, it means air that has restricted visibility due to pollution or pollution formed in the presence of sunlight–photochemical smog.
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The Jet Stream gives us Zonal airflow (West to East) continuing the warm temperatures over the Pacific Northwest. The graphics for days 1-3 show no frontal systems moving into our area. The graphics for days 3-7 Wednesday through Sunday show a frontal system pushing through the Pacific Northwest between Wednesday and Thursday and another one following it.
ADVISORIES:
- AN AIR QUALITY ADVISORY IS IN EFFECT UNTIL 1 PM MONDAY DUE TO WILDFIRE SMOKE FOR THE LANE COUNTY CASCADE FOOTHILLS AND THE CASCADES OF LANE COUNTY.
- AN AIR QUALITY ADVISORY IS IN EFFECT UNTIL MONDAY AFTERNOON FOR DESCHUTES AND GRANT 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.
Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:
- Sunny and hazy and a bit cooler today, mostly clear this evening, partly cloudy late tonight,
- A mix of clouds and sun and a bit cooler Monday, partly cloudy at night,
- Mostly sunny and a bit warmer Tuesday, then mostly clear Tuesday night.
- highs 85-79 warming to 80 Wednesday lows 53-52 warming to 54 Tuesday night.
- Mostly sunny and a bit warmer Wednesday, mostly clear Wednesday night,
- Mostly sunny and a bit cooler Thursday, partly cloudy at night,
- Partly cloudy Friday, party cloudy Friday night,
- Then mostly sunny Saturday.
- highs 84-82 lows 54-52. (seasonal averages high 85 low 52)
Forecast for the Umpqua Valley including Roseburg:
- Sunny and a bit cooler today, mostly clear this evening, partly cloudy late tonight,
- AM clouds, sunny and a bit cooler Monday afternoon, mostly clear in the evening, partly cloudy Monday night,
- Some AM clouds, sunny and a bit cooler Tuesday afternoon, then mostly clear Tuesday night.
- highs 86-79 warming to 82 Tuesday lows 58-54 warming to 56 Tuesday night.
- Mostly sunny and a bit warmer Wednesday, mostly clear Wednesday night,
- Partly cloudy and a bit cooler Thursday and at night,
- Partly cloudy and a bit cooler Friday, partly cloudy Friday night,
- Then partly cloudy Saturday.
- highs 86-82 lows 58-56. (seasonal averages high 87 low 58)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Mostly cloudy start, partly cloudy and slightly warmer this afternoon, partly cloudy this evening, mostly cloudy late tonight,
- Mostly cloudy start, partly cloudy and a bit cooler Monday afternoon and evening, mostly cloudy late at night,
- Partly cloudy and a bit warmer Tuesday, then partly cloudy Tuesday night.
- highs 69-67 warming to 70 Tuesday lows 55-53.
- Partly cloudy and a bit warmer Wednesday, partly cloudy Wednesday night,
- Partly cloudy and a bit cooler Thursday and at night,
- Mostly cloudy start, partly cloudy and a bit cooler Friday night,
- Then partly cloudy and a bit cooler Saturday.
- highs 68-66 lows 56-54. (seasonal average high 67 low 54)
Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Sunny and hazy and a bit cooler with areas of smoke today, partly cloudy and hazy with areas of smoke tonight,
- Mostly sunny and a bit cooler Monday, mostly clear in the evening, partly cloudy late at night,
- Sunny and a bit cooler Tuesday, mostly clear in the evening, then partly cloudy late Tuesday night.
- free air freezing level 15,000 ft. falling to 14,000 ft. today, 14,000 ft. tonight and Monday, then 13,000 ft. Monday night Tuesday through Tuesday night.
- highs 75-65 lows 45-42.
- Mostly sunny and a bit warmer Wednesday, mostly clear Wednesday night,
- Sunny and a bit cooler Thursday, partly cloudy at night,
- Then mostly sunny and a bit cooler Friday and Saturday, partly cloudy Friday night.
- free air freezing level 13,000 ft. Wednesday through Thursday night, 12,000 ft. Friday, 11,000 ft. Friday night, then 10,000 ft. Saturday.
- highs 69-65 lows 45-43.