A weak Upper Level Low Pressure Trough (“U” shape) over the Eastern Pacific keeps the onshore airflow over us holding the temperatures down. The graphics for days 1-3 show no frontal systems over or approaching the Pacific Northwest. The graphics for days 3-7 Wednesday through Sunday show a frontal system pushing into the Pacific Northwest Wednesday.
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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 a bit warmer today (Father’s Day), partly cloudy tonight,
- AM clouds and sun, sunny and a bit cooler Monday afternoon, mostly clear at night,
- Sunny and a bit warmer Tuesday, mostly clear in the evening, partly cloudy late Tuesday night.
- highs 77-75 warming to 79 Tuesday lows 44-52.
- AM clouds, mostly sunny and a bit cooler Wednesday, mostly clear Wednesday night,
- Mostly sunny and a bit cooler Thursday (Juneteenth), partly cloudy at night,
- AM clouds with a good (50%) chance of showers, partly cloudy and a bit cooler with a good (50%) chance of showers Friday afternoon, mostly cloudy with a good (50%) chance of showers Friday night,
- Then a mix of clouds and sun and a bit cooler with a good (50%) chance of showers Saturday.
- highs 76-68 lows 44-46. (seasonal averages high 74 low 47).
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Forecast for the Umpqua Valley including Roseburg:
- Sunny and a bit warmer today (Father’s Day), partly cloudy this evening, mostly cloudy late tonight,
- AM clouds, sunny and a bit cooler Monday, mostly clear at night,
- Mostly sunny and a bit warmer Tuesday, then mostly clear Tuesday night.
- highs 77-80 cooling back to 77 Monday lows 52-50 warming to 55 Tuesday night.
- Mostly cloudy start, sunny and a bit cooler Wednesday afternoon, mostly clear Wednesday night,
- Mostly sunny and a bit cooler Thursday (Juneteenth), mostly clear in the evening, partly cloudy with a slight (20%) chance of showers at night,
- Mostly cloudy and a bit cooler with a (30%) chance of showers Friday, a (30%) chance of showers Friday night,
- Then mostly cloudy with a (20%) chance of showers Saturday.
- highs 84-76 lows 55-50 (seasonal averages high 76 low 52).
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Sunny and a bit warmer today (Father’s Day), partly cloudy this evening, mostly cloudy with patchy fog late tonight,
- Mostly cloudy with patchy AM fog, sunny and a bit cooler Monday afternoon, partly cloudy with patchy coastal fog at night,
- Sunny and a bit warmer Tuesday, mostly clear in the evening, then mostly cloudy with patchy fog and a slight (20%) chance of patchy fog ate Tuesday night.
- highs 66-69 lows 46-53.
- Mostly cloudy with patchy AM fog and a slight (20%) chance of showers, partly and a bit cooler Wednesday afternoon, mostly clear Wednesday night.
- Some AM clouds, sunny and a bit cooler Thursday afternoon (Juneteenth), partly cloudy in the evening, mostly cloudy with a slight (210%) chance of showers Thursday night.
- Mostly cloudy and a bit cooler with a (40%) chance of showers Friday, mostly cloudy with patchy fog and a (40%) chance of showers Friday night,
- Then patchy AM fog, then mostly cloudy with a (40%) chance of showers and a bit warmer Saturday.
- highs 66-63 warming to 65 Saturday lows 47-49 cooling back to 47 Friday night.
- (seasonal averages high 63 low 51). _______________
Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Sunny and a bit warmer today, partly cloudy tonight,
- AM clouds and sun, sunny and a bit cooler Monday afternoon, mostly clear Monday night,
- Sunny and a bit warmer Tuesday, then mostly clear Tuesday night.
- free air freezing level 11,000 ft. rising to 12,000 ft. this afternoon, 12,000 ft. tonight through Tuesday, then 13,000 ft. Tuesday night.
- highs 70-65 warming to 69 Tuesday lows 43 cooling to 39 Monday night warming to 42 Tuesday night.
- Sunny and a bit cooler Wednesday, mostly clear Wednesday night,
- Sunny and a bit cooler Thursday (Juneteenth), partly cloudy in the evening, mostly cloudy late at night,
- A mix of clouds and sun and a bit cooler with a good (50%) chance of showers Friday, mostly cloudy with a good (50%) chance of rain and snow showers Friday night,
- A mix of clouds and sun with a good (50%) chance of AM rain and snow showers, then mostly cloudy and a bit cooler with a good (50%) chance of rain and snow showers Saturday afternoon.
- free air freezing level 14,000 ft.Wednesday and Wednesday night, 12,000 ft. Thursday, 10,000 ft. Thursday night, snow level 6,000 ft. Friday and Friday night, then 5,500 ft. Saturday.
- highs 68-49 lows 39-35.