An Upper Level High Pressure Ridge (“Arch” shape) strengthens to bring more sunshine through the Pacific Northwest. The graphics for days 1-3 show another frontal system that moved through the Pacific Northwest Thursday. The graphics for days 3-7 Monday through Friday show the potential frontal activity through the period with a cold front pushing through Oregon between Tuesday and Tuesday night. A complex frontal system will be just offshore next Thursday.
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ADVISORIES:
- A FROST ADVISORY IS IN EFFECT FROM SATURDAY NIGHT UNTIL 8 AM SUNDAY FOR THE NORTH OREGON COAST RANGE LOWLANDS, CENTRAL OREGON COAST RANGE LOWLANDS, THE NORTH OREGON COAST RANGE, THE CENTRAL OREGON COAST RANGE, THE LOWER COLUMBIA RIVER, THE TUALATIN VALLEY, PORTLAND WEST HILLS AND CHEHALEM MOUNTAIN, THE OUTER SOUTHEAST PORTLAND METRO, THE WEST CENTRAL WILLAMETTE VALLEY, THE EAST CENTRAL WILLAMETTE VALLEY, THE BENTON COUNTY LOWLANDS, THE LINN COUNTY LOW LANDS, THE LANE COUNTY LOWLANDS, THE WEST COLUMBIA RIVER GORGE OF OREGON ABOVE 500 FT.,AND THE CLACKAMAS COUNTY CASCADE FOOTHILLS, .
- A FREEZE WATCH IS IN EFFECT FROM LATE SATURDAY NIGHT THROUGH SUNDAY MORNING FOR THE UPPER HOOD RIVER VALLEY.
- A FROST ADVISORY IS IN EFFECT FROM MIDNIGHT TONIGHT UNTIL 8 AM SATURDAY FOR THE UPPER HOOD RIVER VALLEY
- A FROST ADVISORY IS IN EFFECT FROM MIDNIGHT TONIGHT UNTIL 8 AM SATURDAY FOR THE UPPER HOOD RIVER VALLEY.
- A FLOOD WARNING FOR SNOW MELT 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:
- Mostly cloudy this evening, partly cloudy late tonight,
- Sunny, slightly cooler Saturday, mostly clear Saturday night,
- Areas of AM frost, sunny and a bit warmer Sunday, partly cloudy in the evening, mostly clear late Sunday night,
- Mostly sunny and a bit warmer Monday, then partly cloudy Monday night.
- lows 37-35 warming to 44 Monday night highs 58-73.
- Mostly sunny and a bit cooler Tuesday, mostly clear Tuesday night,
- Sunny and a bit cooler Wednesday, mostly clear Wednesday night,
- Sunny and a bit warmer Thursday, mostly clear Thursday night,
- Then mostly sunny Friday.
- highs 70-69 warming to 72 Thursday cooling to 69 Friday lows 43-47. (seasonal averages high 60 low 40).
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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 cloudy with areas of frost late tonight,
- Areas of AM frost, sunny and a bit cooler Saturday afternoon, clear with areas of frost late Saturday night,
- Areas of AM frost, sunny and a bit warmer Sunday afternoon, mostly clear at night,
- Mostly sunny and a bit warmer Monday, then mostly clear Monday night.
- lows 40-36 warming to 45 Monday night, highs 59-78.
- Some AM clouds, sunny and a bit cooler Tuesday afternoon, mostly clear Tuesday night,
- Mostly sunny Wednesday, mostly clear at night,
- Mostly sunny and a bit warmer Thursday, mostly clear Thursday night,
- Then partly cloudy and a bit cooler Friday.
- highs 72-79 cooling to 74 Friday lows 45-48. (seasonal averages high 62 low 42).
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Partly cloudy with inland areas of frost late tonight,
- Sunny and a bit warmer Saturday, clear Saturday night,
- Sunny and a bit warmer Sunday, mostly clear in the evening, partly cloudy late at night,
- Mostly cloudy Monday, partly cloudy Monday night.
- lows 38-44 highs 57-63.
- Partly cloudy and a bit cooler Tuesday, mostly clear Tuesday night,
- Mostly sunny Wednesday, mostly clear at night,
- Sunny and a bit warmer Thursday, partly cloudy Thursday night,
- Then partly cloudy and a bit coolerFriday.
- highs 62-66 cooling to 62 Friday lows 43-46.
- (seasonal averages high 56 low 44). _______________
Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Mostly cloudy with a slight (20%) chance of evening showers, just mostly cloudy late tonight,
- Sunny and a bit cooler Saturday, clear Saturday night,
- Sunny and warmer Sunday, mostly clear at night,
- Sunny and warmer Monday, then mostly clear Monday night.
- snow level 4,500 ft. this evening, free air freezing level 3,500 ft. rising to 5,000 ft. Saturday afternoon, 6,000 ft. rising to 6,500 ft. late Saturday night, 7,000 ft. rising to 9,000 ft. Sunday afternoon, then 11,000 ft. Sunday night through Monday night.
- lows 28-26 warming to 39 Monday night highs 45-67.
- Sunny and a bit cooler Tuesday, mostly clear Tuesday night,
- Sunny Wednesday, mostly clear at night,
- Sunny and a bit warmer Thursday, mostly clear Thursday night,
- Then sunny and a bit cooler Friday.
- free air freezing level 11,000 ft. Tuesday through Wednesday, then 13,000 ft. Wednesday night though Friday.
- highs 62-67 cooling to 63 Friday lows 37-42.