May 8, 2024
Note: Weather is a constantly changing phenomenon and weather forecasting is a combination of science, experience, and intuition. The accuracy of any given forecast can chance due to unexpected changes in atmospheric conditions, so there are no guarantees the the actual weather will conform to the projected forecast.
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.
THE WEATHER PATTERN:
An Upper Level High Pressure Ridge (“Arch” shape ) is taking over giving us serious warming. The graphics for days 1-3 show the lack of frontal systems. The graphics for days 3-7 Saturday through Wednesday show no frontal activity moving across the Pacific Northwest through the period except for a front to our north next Wednesday.
Forecast For The South Willamette Valley Including Eugene-Springfield:
- Clear with patchy fog late tonight,
- Sunny and warmer Thursday, clear with patchy fog late Thursday night,
- Sunny and a bit warmer Friday, clear at night,
- Sunny and a bit cooler Saturday, then clear Saturday night.
- lows 42-53 cooling to 50 Saturday night highs 80-87 cooling to 86 Saturday.
- Sunny and a bit cooler Sunday (Mother’s Day), mostly clear Sunday night,
- Mostly sunny and a bit cooler Monday, partly cloudy at night,
- Sunny Tuesday, mostly clear Tuesday night,
- Then sunny and a bit warmer Wednesday.
- highs 78-72 warming to 75 Wednesday lows near 47 (seasonal averages high 67 low 43)
Forecast for the Umpqua Valley including Roseburg:
- Clear tonight,
- Sunny and warmer Thursday, clear Thursday night,
- Sunny and warmer Friday, clear at night,
- Sunny and a bit cooler Saturday, then clear Saturday night.
- lows 44-58 cooling to 53 Saturday night highs 82-92 cooling to 89 Saturday.
- Sunny and cooler Sunday (Mother’s Day), mostly clear Sunday night,
- Mostly sunny and a bit cooler Monday, mostly clear in the evening, partly cloudy at night,
- Mostly sunny and a bit cooler Tuesday, mostly clear Tuesday night,
- Then mostly sunny and a bit warmer Wednesday.
- highs 82-77 warming to 79 Wednesday lows 52-49 warming back to 52 Tuesday night. (seasonal average high 70 low 47)
Forecast for the Oregon Coast including Coos Bay and North Bend:
- Mostly clear tonight,
- Sunny and warmer Thursday and Friday, clear both nights,
- Mostly sunny and cooler Saturday, then mostly clear Saturday night
- lows 44-53 cooling to 46 Saturday night highs 75-80.
- Partly cloudy and a bit cooler Sunday (Mother’s Day), partly cloudy Sunday night,
- Partly cloudy and a bit cooler Monday and at night,
- Then mostly sunny and a bit warmer Tuesday and Wednesday, mostly clear both nights,
- Then mostly sunny and a bit warmer Wednesday.
- highs 63-66 lows 48-46 warming back to 48 Tuesday night. (seasonal average high 60 low 47)
Forecast for the Northern Oregon Cascades including Willamette Pass:
- Clear tonight,
- Sunny and warmer Thursday and Friday, clear both nights,
- Sunny Saturday, then clear Saturday night.
- free air freezing level 11,000 ft. tonight, 11,000 ft. rising to 12,000 ft. Thursday afternoon, 12,000 ft. Thursday night Saturday, then 13,000 ft. Saturday night.
- lows 34-46 highs 63-72.
- Sunny and a bit cooler Sunday (Mother’s Day), mostly clear in the evening, partly cloudy late Sunday night,
- Sunny and a bit cooler Monday, partly cloudy at night,
- Sunny Tuesday, mostly clear Tuesday night,
- Then sunny and a bit warmer Wednesday.
- free air freezing level 12,000 ft. Sunday through Monday, 13,000 ft. Monday night through Tuesday night, then 14,000 ft. Wednesday.
- highs 66-63 warming to 68 Wednesday lows near 40.
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