A weak Upper Level Low Pressure Trough (“U” shape) brought onshore airflow and clouds for much cooler high temperatures than predicted. The graphics for days 1-3 show a the weak frontal system that slid through the Pacific Northwest, but brought lots of clouds hiding the sun. The graphics for days 3-7 Tuesday through Saturday show a frontal system pushing into the Pacific Northwest between Tuesday and Wednesday.
Note: My apologies for missing the prediction for your Friday by a lot. We were expecting sunshine and temperatures near 72. Instead we had overcast skies and high temperatures near 60 degrees. I missed it by 11 degrees. A rather rare event for me, but Mother Nature changed her mind.
_______________
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.
_______________
Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:
- Sunny and warmer today, mostly clear tonight,
- Sunny and a bit warmer Sunday (Father’s Day), partly cloudy at night,
- AM clouds and sun, sunny and a bit cooler Monday, mostly clear Monday night.
- highs 73-77 cooling to 75 Monday lows 42-47.
- Sunny and a bit warmer Tuesday, mostly clear in the evening, partly cloudy late Tuesday night,
- A mix of clouds and sun and a bit cooler Wednesday, mostly clear at night,
- Mostly sunny and a bit cooler Thursday (Juneteenth), mostly clear Thursday night,
- Then a mix of clouds and sun and a bit cooler with a slight (20%) chance of showers Friday.
- highs 80-73 lows 52-45. (seasonal averages high 73 low 47).
________________
Forecast for the Umpqua Valley including Roseburg:
- Some AM clouds, sunny and a bit warmer this afternoon, mostly clear tonight,
- Sunny and a bit warmer Sunday (Father’s Day), partly cloudy Sunday night,
- Partly cloudy and a bit cooler Monday, then mostly clear Monday night.
- highs 77-80 cooling back to 77 Monday lows 48-52.
- Mostly sunny and a bit warmer Tuesday, mostly clear Tuesday night,
- Mostly cloudy start, partly cloudy and a bit cooler Wednesday afternoon, mostly clear Wednesday night,
- Mostly sunny and a bit cooler Thursday (Juneteenth), partly cloudy Thursday night,
- Then partly cloudy and a bit cooler Friday.
- highs 84-76 lows 55-50 (seasonal averages high 76 low 52).
_______________
Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Some AM clouds with patchy inland fog, sunny and a bit warmer this afternoon, partly cloudy with patchy fog late tonight,
- Some AM clouds with patchy inland fog, sunny and a bit warmer Sunday afternoon (Father’s Day), partly cloudy in the evening, mostly cloudy with patchy fog late at night,
- Mostly cloudy with patchy AM fog, sunny and a bit cooler Monday afternoon, then just partly cloudy Monday night.
- highs 64-66 cooling back to 64 Monday lows 45-48.
- Some AM clouds, sunny and a bit warmer Tuesday afternoon, mostly clear in the evening, mostly cloudy late Tuesday night,
- Mostly cloudy and a bit cooler Wednesday, partly cloudy at night.
- Partly cloudy and a bit warmer Thursday (Juneteenth), partly cloudy Thursday night.
- Then partly cloudy and a bit cooler Friday.
- highs 68-65 warming to 67 Thursday cooling to 65 Friday lows 52-48.
- (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,
- Sunny and a bit warmer Sunday, partly cloudy at night,
- Mostly sunny and a bit cooler Monday, then mostly clear Monday night.
- free air freezing level 10,000 ft. rising to 11,000 ft. this afternoon, 11,000 ft. rising to 12,000 ft. late tonight, 11,000 ft. rising to 12,000 ft. Sunday afternoon, 12,000 ft. Sunday night, 11,000 ft. Monday, then 12,000 Monday night.
- highs 65-70 cooling to 66 Monday lows 40-44 cooling to 39 Monday night.
- Sunny and a bit warmer Tuesday, mostly clear Tuesday night,
- Sunny Wednesday, mostly clear Wednesday night,
- Sunny and a bit cooler Thursday (Juneteenth), mostly clear at night,
- Then mostly sunny and a bit warmer with a slight (20%) chance of showers Friday.
- free air freezing level 12,000 ft. Tuesday, 13,000 ft. Tuesday night through Wednesday night, 12,000 ft. Thursday, 10,000 ft. Thursday night, then snow level 6,500 ft. Friday.
- highs 68-59 lows 43-37.