An Upper Level High Pressure Ridge (“Arch” shape) is slowly moving eastward away from us allowing weak frontal activity to bring the chance of showers for the rest the Holiday weekend. The graphics for days 1-3 show a frontal system sliding through the Pacific Northwest Sunday. The graphics for days 3-7 Tuesday through Saturday show a complex frontal system sliding through Oregon between Thursday and Friday with another front offshore next Saturday.
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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:
- Mostly clear this evening, partly cloudy late tonight,
- A mix of clouds and sun and a bit cooler Sunday, mostly cloudy with a (40%) chance of showers late Sunday night (under 0.10 in. of rain possible),
- Mostly cloudy with a (40%) chance of AM showers, a mix of clouds and sun Monday afternoon (Memorial Day), just partly cloudy at night,
- Mostly sunny and a bit warmer Tuesday, then mostly clear late Tuesday night.
- lows 46-50 cooling to 45 Monday night warming back to 50 Tuesday night highs 72-79.
- Sunny and a bit warmer Wednesday, mostly clear in the evening, partly cloudy late Wednesday night,
- Mostly sunny and a bit cooler Thursday, mostly clear at night,
- Then sunny and a bit warmer Friday and Saturday, clear Friday night,
- highs 84-77 warming to 86 Saturday lows 52-49 warming back to 52 Friday night. (seasonal averages high 70 low 45).
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HOME WOOD HEATING ADVISORY:
The Eugene & Springfield: GREEN– Fireplace and wood stove used is allowed. Protect air quality by not heating with wood when possible.
Oakridge And Westfir: GREEN– Fireplace and wood stove used is allowed. Protect air quality by not heating with wood when possible.
The use of pellet stoves is always allowed.
Data courtesy of Lane Regional Air Protection Agency (LRAPA.org)
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Forecast for the Umpqua Valley including Roseburg:
- Mostly clear this evening, partly cloudy late tonight,
- Mostly cloudy and a bit cooler Sunday, mostly cloudy in the evening, partly cloudy with a slight (20%) chance of showers late Sunday night,
- Mostly cloudy with a slight (20%) chance of AM showers, just partly cloudy a bit cooler Monday afternoon, partly cloudy at night,
- Some AM clouds, sunny and warmer Tuesday, then mostly clear Tuesday night.
- lows 50-53 cooling back to 50 Monday night warming to 55 Tuesday night highs 74-72 warming to 82 Tuesday.
- Mostly sunny and a bit warmer Wednesday, mostly clear Wednesday night,
- Some AM clouds, sunny and a bit cooler Thursday afternoon, mostly clear at night,
- Mostly sunny and a bit warmer Friday, clear Friday night,
- Then sunny and a bit warmer Saturday.
- highs 87-82 warming to 92 Saturday lows 55-53 warming to 56 Friday night. (seasonal averages high 73 low 49).
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Mostly clear this evening, mostly cloudy with patchy fog late tonight,
- Mostly cloudy and a bit warmer Sunday, mostly cloudy with a (30%) chance of showers Sunday night,
- Mostly cloudy with patchy AM fog and a slight (20%) chance of showers, mostly cloudy and a bit cooler Monday (Memorial Day), mostly cloudy late at night,
- Some AM clouds, sunny and a bit warmer Tuesday, then mostly clear Tuesday night.
- lows 45-52 cooling to 46 Monday night warming to 49 Tuesday night highs 64-62 warming to 70 Tuesday.
- Mostly sunny and a bit cooler Wednesday, mostly clear in the evening, mostly cloudy late Wednesday night,
- Mostly cloudy with a slight (20%) chance of AM showers, partly cloudy and a bit cooler Thursday afternoon and at night,
- Party cloudy in the AM, sunny and a bit warmer Friday afternoon, mostly clear Friday night,
- Then mostly sunny and a bit warmer Saturday.
- highs 70-68 warming to 73 Saturday lows near 50.
- (seasonal averages high 62 low 49). _______________
Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Mostly clear this evening, partly cloudy late tonight,
- Mostly sunny and a bit cooler with a good (50%) chance of showers Sunday afternoon, mostly cloudy with a (50%) chance of showers Sunday night (under 0.10 in.of rain possible),
- AM clouds and sun with a good (50%) chance of showers, a mix of clouds and sun and cooler with a slight (20%) chance of showers Monday afternoon (Memorial Day), just partly cloudy at night,
- Sunny and warmer Tuesday, then mostly clear Tuesday night.
- free air freezing level 12,000 ft. tonight, snow level above 8,000 ft. Sunday, above 8,000 ft. falling to 7,500 ft. Sunday night, 7,000 ft. Monday, free air freezing level 10,000 ft. rising to 12,000 ft. Monday night, 13,000 ft. Tuesday, then 14,000 ft. Tuesday night.
- lows 45-38 warming to 47 Tuesday night highs 66-57 warming to 73 Tuesday.
- Sunny and a bit warmer Wednesday, partly cloudy with a slight (20%) chance of showers Wednesday night,
- Mostly sunny and cooler with a slight (20%) chance of showers Thursday, mostly clear at night,
- Then sunny and a bit warmer Friday and Saturday, clear Friday night.
- free air freezing level 14,000 ft. Wednesday, snow level above 8,000 ft. Wednesday and Thursday, free air freezing level 14,000 ft. Thursday night, 15,000 ft. Friday and Friday night, then 16,000 ft. Saturday.
- highs 79-69 warming to 82 Saturday lows 47-44 warming to 49 Friday night.