May 22, 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
- A WIND ADVISORY IS IN EFFECT UNTIL 8 PM THIS EVENING FOR CENTRAL AND EASTERN LAKE COUNTY.
- A WIND ADVISORY IS IN EFFECT UNTIL 5 PM THIS EVENING FOR THE LOWER COLUMBIA BASIN OF OREGON AND THE FOOTHILLS OF THE SOUTHERN BLUE MOUNTAINS OF OREGON.
- A WIND ADVISORY IS IN EFFECT UNTIL 8 PM TONIGHT FOR HARNEY COUNTY.
- A WIND ADVISORY IS IN EFFECT UNTIL 9 PM TONIGHT FOR NORTH CENTRAL OREGON.
- A FROST ADVISORY IS IN EFFECT FROM 3 AM UNTIL 8 AM THURSDAY FOR EASTERN CURRY COUNTY AND JOSEPHINE COUNTY, AND JACKSON COUNTY.
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 Low Pressure Trough (“U” shape ) is approaching the West Coast bringing unsettled weather. The graphics for days 1-3 show the frontal system that moved through Oregon today. The graphics for days 3-7 Saturday through Wednesday show a cold front that will push into the Pacific Northwest between Tuesday and next Wednesday.
Forecast For The South Willamette Valley Including Eugene-Springfield:
- Partly cloudy tonight,
- Patchy AM fog, sunny and a bit warmer Thursday, mostly clear in the evening, partly cloudy with patchy fog late Thursday night,
- Some AM clouds, a mix of clouds and sun and a bit cooler Friday afternoon, mostly cloudy with a good (50%) chance of showers at night,
- A mix of clouds and sun and a bit cooler with a (40%) chance of showers Saturday, then just partly cloudy Saturday night.
- lows 43-47 cooling to 42 Friday night highs 68-64.
- Mostly sunny and a bit warmer Sunday, mostly clear Sunday night,
- Sunny and a bit warmer Monday (Memorial Day), mostly clear at night,
- Mostly sunny Tuesday, partly cloudy with a slight (20%) chance of showers Tuesday night,
- Then mostly sunny with a slight (20%) chance of showers and a bit cooler Wednesday.
- highs 70-75 cooling to 72 Wednesday lows 45-48. (seasonal averages high 69 low 45)
Forecast for the Umpqua Valley including Roseburg:
- Partly cloudy with patchy fog late tonight,
- Sunny and a bit warmer Thursday, mostly clear in the evening, mostly cloudy late Thursday night,
- Mostly cloudy and a bit warmer with a slight (20%) chance of rain Friday, mostly cloudy with a (30%) chance of rain at night (under 0.10 in. of rain possible),
- Mostly cloudy with a slight (20%) chance of AM rain, partly cloudy and a bit cooler Saturday afternoon and evening, then mostly clear late Saturday night.
- lows 43-49 cooling to 44 Saturday night highs 72-66.
- Mostly sunny and a bit warmer Sunday, mostly clear Sunday night,
- Mostly sunny and a bit warmer Monday (Memorial Day), mostly clear at night,
- Partly cloudy and a bit cooler cooler Tuesday, then partly cloudy with a slight (20%) chance of rain Tuesday night and Wednesday.
- highs 74-79 cooling back to 74 Wednesday lows 48-50. (seasonal average high 72 low 49)
Forecast for the Oregon Coast including Coos Bay and North Bend:
- Partly cloudy with patchy fog late tonight,
- Sunny and a bit warmer Thursday, mostly clear in the evening, mostly cloudy late Thursday night,
- Mostly cloudy and a bit warmer with a slight (20%) chance of rain Friday, mostly cloudy with a (30%) chance of rain at night (under 0.10 in. of rain possible),
- Mostly cloudy with a slight (20%) chance of AM rain, partly cloudy and a bit cooler Saturday afternoon and evening, then mostly clear late Saturday night.
- lows 43-49 cooling to 44 Saturday night highs 72-66.
- Mostly sunny and a bit warmer Sunday, mostly clear Sunday night,
- Mostly sunny and a bit warmer Monday (Memorial Day), mostly clear at night,
- Partly cloudy and a bit cooler cooler Tuesday, then partly cloudy with a slight (20%) chance of rain Tuesday night and Wednesday.
- highs 74-79 cooling back to 74 Wednesday lows 48-50. (seasonal average high 72 low 49)
Forecast for the Northern Oregon Cascades including Willamette Pass:
- Mostly cloudy with a good (50%) chance of evening rain and snow showers (snow possibly heavy at times), a slight (20%) chance of rain and snow showers late tonight (under 0.10 in. of rain possible),
- Sunny and warmer Thursday, partly cloudy in the evening, mostly cloudy late Thursday night,
- Clouds and sun with a slight (20%) chance of AM showers, a mix of clouds and sun with a good (50%) chance of showers and a bit cooler Friday afternoon, mostly cloudy with showers likely (70%) at night,
- Mostly cloudy with a good (50%) chance of AM rain and snow showers, partly cloudy and a bit cooler with a good (50%) chance of rain and snow showers Saturday afternoon, then just partly cloudy Saturday night.
- snow level 4,000 ft. tonight, free air freezing level 8,000 ft. Thursday afternoon, 9,000 ft. Thursday night, snow level 6,500 ft. Friday, 7,000 ft. falling to 5,500 ft. Friday night, 5,000 ft. Saturday, then free air freezing level 8,000 ft. Saturday night.
- lows 29-36 cooling to 32 Saturday night highs 57-49.
- Sunny and warmer Sunday, mostly clear Sunday night,
- Sunny and a bit warmer Monday (Memorial Day), mostly clear at night,
- Mostly sunny and a bit warmer Tuesday, partly cloudy with a slight (20%) chance of evening showers, mostly cloudy with a slight (20%) chance of showers late Tuesday night,
- Then mostly cloudy and cooler with a slight (20%) chance of showers|Wednesday.
- free air freezing level 9,000 ft. Sunday, 11,000 ft. Sunday night, 12,000 ft. Monday and Monday night, 11,000 ft. Tuesday, snow level 8,000 ft. Tuesday night, then 7,000 ft. Wednesday.
- highs 59-68 cooling back to 59 Wednesday lows 38-42 cooling to 40 Tuesday night.