An Upper Level High Pressure Ridge (“Arch” shape) takes over bringing sunshine today through most of the Holiday weekend. The graphics for days 1-3 show no fronts moving through the Pacific Northwest through the period. A frontal system will be offshore Sunday. The graphics for days 3-7 Monday through Friday show a complex frontal system sliding through Oregon between Monday and Tuesday. Another front will push through next Thursday and Friday.
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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:
- Partly cloudy this evening, mostly clear with patchy fog late tonight,
- Sunny and a bit warmer Saturday, mostly clear Saturday night,
- Mostly sunny and a bit cooler Sunday, mostly cloudy with a (40%) chance of showers late at night,
- Mostly cloudy with a (40%) AM showers, mostly sunny and a bit cooler with a (40%) chance of showers Monday afternoon (Memorial Day), then just partly cloudy Monday night.
- lows 43-50 cooling to 45 Monday night highs 76-69.
- Mostly sunny and a bit warmer Tuesday, partly cloudy in the evening, mostly clear late Tuesday night,
- Sunny and a bit warmer Wednesday, mostly clear in the evening, partly cloudy with a slight (20%) chance of showers late at night,
- Mostly cloudy and a bit cooler with a slight (20%) chance of showers Thursday, mostly clear Thursday night,
- Then sunny and a bit warmer Friday.
- highs 76-82 cooling to 78 Thursday warming to 80 Friday lows 52-49. (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,
- Some AM clouds, sunny and a bit warmer Saturday, clear in the evening, partly cloudy late Saturday night,
- Partly cloudy and a bit cooler Sunday, mostly cloudy with a slight (20%) chance of showers late at night,
- Mostly cloudy with a slight (20%) chance of AM showers, partly cloudy a bit cooler with a slight (20%) chance of thunderstorms Monday afternoon, then partly cloudy Monday night.
- lows 46-56 cooling to 53 Monday night highs 74-82.
- Partly cloudy and a bit warmer Tuesday, mostly clear Tuesday night,
- Mostly sunny and a bit warmer Wednesday, mostly clear at night,
- Some AM clouds, sunny and a bit cooler Thursday afternoon, mostly clear Thursday night,
- Then mostly sunny Friday.
- highs 72-79 cooling to 75 Thursday lows 53-57. (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 becoming partly cloudy then back to mostly clear with patchy fog late tonight,
- Some AM clouds with patchy fog, while areas of inland AM fog, sunny Saturday afternoon, mostly clear in the evening, mostly cloudy with patchy fog coastal fog late Saturday night while mostly cloudy with areas of inland fog late Saturday night,
- Mostly cloudy with patchy AM coastal fog while areas of inland AM fog, mostly cloudy and a bit warmer Sunday afternoon, mostly cloudy with a (40%) chance of coastal showers at night while a (30%) chance of inland showers at night, patchy fog late at night,
- Mostly cloudy with patchy AM fog and a (30%) chance of showers, partly cloudy and a bit cooler Monday afternoon (Memorial Day), then just partly cloudy Monday night.
- lows 45-50 cooling back to 45 Monday night highs 62-63 cooling back to 62 Saturday.
- Partly cloudy and a bit warmer Tuesday, partly cloudy in the evening, clear late Tuesday night,
- Sunny and a bit cooler Wednesday, partly cloudy at night,
- Partly cloudy and a bit cooler with a slight (20%) chance of showers Thursday and Thursday night,
- Party cloudy in the AM, then sunny and a bit warmer Friday afternoon.
- highs 70-68 warming back to 70 Friday lows 50-49.
- (seasonal averages high 62 low 49). _______________
Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Partly cloudy this evening, mostly clear late tonight,
- Sunny and warmer Saturday, mostly clear Saturday night,
- Mostly sunny and a bit cooler with a slight (20%) chance of showers Sunday afternoon, mostly cloudy with a (50%) chance of evening showers and a slight (20%) thunderstorms, a good (50%) chance of showers at night,
- Mostly cloudy with a good (50%) chance of AM showers, a mix of clouds and sun and cooler with a good (50%) chance of showers Monday afternoon (Memorial Day), partly cloudy Monday night.
- free air freezing level 11,000 ft. tonight, 12,000 ft. Saturday and Saturday night, snow level above 8,000 ft. Sunday, above 8,000 ft. falling to 8,000 ft. Sunday night, 7,000 ft. Monday, then free air freezing level 12,000 ft. Monday night.
- lows 35-43 cooling to 42 Monday night highs 59-70.
- Mostly sunny and warmer Tuesday, partly cloudy in the evening, mostly clear late Tuesday night,
- Sunny and a bit warmer with a slight (20%) chance of showers Wednesday, partly cloudy with a slight (20%) chance of showers at night,
- Mostly sunny and a bit cooler cooler with a slight (20%) chance of showers Thursday, partly cloudy with a slight (20%) chance of evening showers, mostly clear with a slight (20%) chance of showers late Thursday night,
- Then sunny and a bit warmer Friday.
- free air freezing level 13,000 ft. Tuesday, 14,000 ft. Tuesday night, snow level above 8,000 ft. Wednesday through Thursday night, then free air freezing level 15,000 ft. Friday.
- highs 65-73 cooling to 66 Monday warming to 68 Tuesday lows 42-44 cooling back to 42 Monday night warming to 36 Wednesday night.