An Upper Level High Pressure Ridge (“Arch” shape) takes over bringing sunshine and warmth to the Pacific Northwest. The graphics for days 1-3 show no frontal systems moving toward or through the Pacific Northwest. The graphics for days 3-7 Sunday through Thursday show a frontal system moving in Monday and another just offshore Tuesday.
_______________
ADVISORIES:
- A FROST ADVISORY IS IN EFFECT FROM MIDNIGHT TONIGHT UNTIL 9 AM FRIDAY FOR THE TUALATIN VALLEY, OUTER SOUTHEAST PORTLAND METRO, WEST CENTRAL WILLAMETTE VALLEY, THE EAST CENTRAL WILLAMETTE VALLEY, THE BENTON COUNTY LOWLANDS, THE LINN COUNTY LOWLANDS, THE LANE COUNTY LOWLANDS, AND THE UPPER HOOD RIVER VALLEY.
- A FROST ADVISORY IS IN EFFECT FROM MIDNIGHT TONIGHT UNTIL 9 AM FRIDAY FOR THE NORTH OREGON COAST RANGE LOWLANDS, THE CENTRAL OREGON COAST RANGE LOWLANDS, THE CLACKAMAS COUNTY CASCADE FOOTHILLS, THE CASCADE FOOTHILLS OF MARION AND LINN COUNTIES, AND THE LANE COUNTY CASCADE FOOTHILLS.
- A FLOOD WARNING IS IN EFFECT UNTIL FURTHER NOTICE FOR THE SILVIES RIVER NEAR BURNS AFFECTING HARNEY COUNTY.
Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:
- Clear with areas of frost late tonight,
- Areas of AM frost, sunny and warmer Friday afternoon, partly cloudy in the evening, mostly cloudy Friday night,
- A mix of clouds and sun and a bit warmer Saturday, partly cloudy in the evening, mostly cloudy late at night,
- Mostly cloudy and cooler with rain likely (70%) Sunday, then rain Sunday night.
- lows 33-47 highs 68-73 cooling to 62 Sunday.
- Mostly cloudy with rain and a bit cooler Monday, mostly cloudy with rain likely (70%) Monday night,
- Mostly cloudy and a bit warmer with rain likely (70%) Tuesday, a good (50%) chance of rain at night,
- Mostly cloudy with a slight (20%) chance of AM rain, partly cloudy and a bit warmer with a slight (20%) chance of Wednesday afternoon, just mostly cloudy Wednesday night,
- Then a mix of clouds and sun and a bit warmer with a (40%) chance of rain Thursday.
- highs 58-65 lows 45-43 (seasonal averages high 59 low 39).
_______________
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)
________________
Forecast for the Umpqua Valley including Roseburg:
- Clear tonight,
- Sunny and warmer Friday, partly cloudy Friday night,
- Partly cloudy and a bit warmer Saturday and in the evening, mostly cloudy late at night,
- Mostly cloudy with a (30%) chance of AM rain, rain and cooler Sunday afternoon, evening rain, then rain Sunday night.
- lows 36-49 cooling to 48 Sunday night highs 73-74 cooling to 65 Sunday.
- Mostly cloudy with AM showers, a bit cooler with showers likely (70%) Monday afternoon, a good (50%) chance of showers Monday night.
- Mostly cloudy and a bit warmer with a good (50%) chance of rain Tuesday, a slight (20%) chance of evening showers, just partly cloudy late at night,
- Partly cloudy and a bit warmer Wednesday, partly cloudy Wednesday night,
- Then partly cloudy and a bit warmer Thursday.
- highs 60-68 lows near 45. (seasonal averages high 61 low 41).
_______________
Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Mostly clear tonight
- Sunny and warmer Friday, partly cloudy in the evening, mostly cloudy late Friday night,
- Mostly cloudy start, partly cloudy Saturday afternoon and evening, mostly cloudy with a slight (20%) chance of rain late at night,
- Mostly cloudy with AM rain likely (70%), rain and a bit cooler Sunday afternoon, evening rain, then rain late Sunday night.
- lows 38-46 cooling to 45 Sunday night highs 64-58.
- Mostly cloudy with AM showers likely (70%), a bit cooler with a good (50%) chance of showers Monday afternoon, a good (50%) chance of showers Monday night,
- Mostly cloudy with AM rain likely (70%), a bit warmer with a good (50%) chance of rain Tuesday afternoon, just mostly cloudy at night,
- Mostly cloudy start, partly cloudy and a bit warmer Wednesday, partly cloudy Wednesday night,
- Then partly cloudy Thursday.
- highs 57-62 lows 45-44.
- (seasonal averages high 56 low 43). _______________
Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Mostly clear with widespread frost tonight,
- Sunny and and a bit warmer Friday, partly cloudy Friday night,
- A mix of clouds and sun and a bit warmer Saturday, then partly cloudy Saturday night,
- A mix of clouds and sun with a good (50%) chance of rain and a bit cooler Sunday, partly cloudy Sunday night.
- free air freezing level 5,500 ft. falling to 4,500 ft. late tonight, 4,500 ft. rising to 8,000 ft. Friday afternoon, 9,000 ft. rising to 10,000 ft. late Friday night, 10,000 ft. Saturday and Saturday night, snow level 7,000 ft. Sunday, then 6,500 ft. Sunday night.
- lows 23-34 highs 40-56.
- Mostly cloudy and cooler with rain and snow Monday, a good (50%) chance of rain and snow Monday night,
- Mostly cloudy and a bit warmer with rain and snow likely (70%) Tuesday, mostly cloudy with a good (50%) chance of rain and a slight (20%) chance of snow at night,
- Mostly sunny and a bit warmer with a slight (20%) chance of rain and snow Wednesday, just mostly cloudy,
- Then a mix of clouds and sun and a bit warmer with a (40%) chance of rain Thursday.
- snow level 5,000 ft. Monday, 4,500 ft. Monday night, 5,000 ft. Tuesday, 5,500 ft. Tuesday night, 6,000 ft. Wednesday, then free air freezing level 8,000 ft. Wednesday night, then snow level 7,000 ft. Thursday.
- highs 55-42 warming to 58 Wednesday lows 33-30 warming back to 33 Tuesday night.