Here is my new weekly weather quiz question. “What is the “Santa Ana Wind?”
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An Upper Level Low Pressure Trough (“U” shape) is moving eastward away from the Pacific Northwest to be replaced by an Upper Level High Pressure Ridge (“Arch” shape). The graphics for days 1-3 show no frontal systems moving through the Pacific Northwest. The graphics for days 3-7 Saturday through Wednesday show no frontal systems pushing through the Pacific Northwest until a cold front moves through between Saturday night and Sunday.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 35 in the Good category measuring Ozone.
Oakridge: The Air Quality Index is 8 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 13 in the Good category measuring Particulate Matter.
Data courtesy of Lane Regional Air Protection Agency (LRAPA.org)
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ADVISORIES:
- NONE AT THIS TIME.
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:
- Sunny and warmer today (Juneteenth), mostly clear tonight,
- Sunny and a bit warmer Thursday (Summer Solstice 1:50 pm), clear at night,
- Sunny and a bit warmer Friday, then mostly clear Friday night.
- highs 83-88 lows 50-52.
- Sunny and a bit cooler Saturday, mostly clear in the evening, partly cloudy late Saturday night,
- Mostly sunny and a bit cooler Sunday, mostly clear at night,
- Sunny Monday, mostly clear Monday night,
- Then sunny and a bit warmer Tuesday.
- highs 86-77 warming to 79 Tuesday lows 54-47 (seasonal averages high 75 low 48)
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EUGENE-SPRINGFIELD POLLEN COUNT:
GRASS: HIGH (42)
TREES: LOW (5)
WEEDS: ABSENT (0)
Measured 6.18.24
Data courtesy of Oregon Allergy Associates.
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Forecast for the Umpqua Valley including Roseburg:
- Sunny and a bit warmer this afternoon (Juneteenth), mostly clear tonight,
- Some AM clouds, sunny and a bit warmer Thursday (Summer Solstice 1:50 pm), clear at night,
- Sunny and a bit warmer Friday, then clear Friday night.
- highs 86-92 lows 54-57.
- Mostly sunny and a bit cooler Saturday, mostly clear Saturday night,
- AM clouds, sunny and a bit cooler Sunday afternoon, mostly clear at night,
- Mostly sunny Monday, clear Monday night,
- Then sunny and a bit warmer Tuesday.
- highs 89-80 warming to 82 Tuesday lows 57-52. (seasonal average high 77 low 53)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Sunny and a bit warmer today (Juneteenth), partly cloudy this evening, mostly cloudy with patchy coastal drizzle late and patchy fog late tonight,
- AM clouds with patchy fog and patchy coastal drizzle, sunny and a bit warmer Thursday afternoon (Summer Solstice 1:50 pm), mostly cloudy in the evening, partly cloudy late at night,
- Some AM clouds, sunny and a bit warmer Friday, then mostly clear Friday night.
- highs 67-69 lows near 50.
- Mostly sunny Saturday, mostly clear in the evening, mostly cloudy late Saturday night,
- AM clouds, sunny and a bit cooler Sunday afternoon, mostly clear at night,
- Mostly sunny Monday, mostly clear Monday night,
- Some AM clouds, then sunny and a bit warmer Tuesday.
- highs 69-67 warming to 69 Tuesday lows 49-52 cooling to 48 Sunday night and Monday night. (seasonal average high 64 low 52)
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Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Sunny and warmer today (Juneteenth), mostly clear tonight,
- Sunny and a bit warmer Thursday (Summer Solstice 1:50 pm), mostly clear at night,
- Sunny and a bit warmer Friday, then mostly clear Friday night.
- free air freezing level 11,000 ft. today, 12,000 ft. tonight and Thursday, 13,000 ft. Thursday night and Friday, then 14,000 ft. Friday night.
- highs 72-76 lows 44-48.
- Sunny and a bit warmer Saturday, mostly clear Saturday night,
- Sunny and cooler Sunday, mostly clear at night,
- Then sunny and a bit warmer Monday and Tuesday, clear Monday night.
- free air freezing level 15,000 ft. Saturday through Monday night, then 14,000 ft. Tuesday.
- highs 77-66 warming to 68 Tuesday lows 45-40 warming to 42 Monday night.
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