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 no frontal systems moving through the Pacific Northwest. The graphics for days 3-7 Tuesday through Saturday 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 sliding into Oregon next Saturday.
_______________
ADVISORIES:
- A FROST ADVISORY IS IN EFFECT FROM 11 PM TONIGHT UNTIL 9 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 WARNING IS IN EFFECT FROM 11 PM TONIGHT UNTIL 9 AM SUNDAY 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 clear with areas of frost tonight,
- Areas of AM frost, sunny and a bit warmer Sunday, clear Sunday night,
- Mostly sunny and warmer Monday, mostly clear at night,
- Sunny and a bit cooler Tuesday, partly cloudy in the evening, then mostly clear late Tuesday night.
- lows 34-44 cooling to 42 Tuesday night highs 66-76 cooling to 70 Tuesday.
- Sunny and a bit cooler Wednesday, mostly clear Wednesday night,
- Sunny and a bit warmer Thursday, mostly clear at night,
- Sunny and a bit warmer Friday, mostly clear Friday night,
- Then sunny and a bit cooler Saturday.
- highs 66-70 cooling to 68 Saturday lows 40-42. (seasonal averages high 61 low 40).
_______________
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:
- Mostly clear with areas of frost late tonight,
- Areas of AM frost, sunny and a bit warmer Sunday afternoon, mostly clear at night,
- Mostly sunny and warmer Monday, clear Monday night,
- Mostly sunny and cooler Tuesday afternoon, mostly clear and cooler Tuesday night.
- lows 36-47 cooling to 45 Tuesday night highs 70-82 cooling to 74 Tuesday.
- Sunny and a bit cooler Wednesday, clear Wednesday night,
- Mostly sunny Thursday, mostly clear Thursday night,
- Sunny and a bit warmer Friday, mostly clear Friday night,
- Then mostly sunny Saturday.
- highs 69-72 lows 42-43. (seasonal averages high 62 low 42).
_______________
Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Mostly clear with patchy inland frost late tonight,
- Patchy AM inland frost, sunny and a bit cooler Sunday, clear Sunday night,
- Sunny and a bit warmer Monday, mostly clear Monday night,
- Partly cloudy and a bit cooler Tuesday, then partly cloudy Tuesday night.
- lows 38-44 cooling to 42 Tuesday night highs 62-65 cooling back to 62 Tuesday.
- Mostly sunny and a bit cooler Wednesday, mostly clear at night,
- Sunny and a bit warmer Thursday, mostly clear Thursday night,
- Sunny and a bit warmer Friday, mostly clear Friday night,
- Then mostly sunny and a bit cooler Saturday
- highs 59-65 cooling to 60 Saturday lows 42-44.
- (seasonal averages high 56 low 44). _______________
Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Mostly clear with areas of frost late tonight,
- Sunny and warmer Sunday, clear Sunday night,
- Sunny and a bit warmer Monday, mostly clear at night,
- Sunny and a bit cooler Tuesday, then clear Tuesday night.
- free air freezing level 6,000 ft. rising to 6,500 ft. late tonight, 7,000 ft. rising to 9,000 ft. Sunday afternoon, 11,000 ft. Sunday night, 12,000 ft. Monday, 12,000 ft. falling to 11,000 ft. Monday night, then 10,000 ft. Tuesday and Tuesday night.
- lows 25-39 cooling to 35 Tuesday night highs 54-67 cooling to 62 Tuesday.
- Sunny and a bit cooler Wednesday, mostly clear Wednesday night,
- Sunny and a bit cooler Thursday, mostly clear at night,
- Sunny and a bit warmer Friday, mostly clear Friday night,
- Then sunny and a bit warmer Saturday.
- free air freezing level 9,000 ft. Wednesday, 8,000 ft. Wednesday night, 7,000 ft. Thursday and Thursday night, 7,500 ft. Friday, then 11,00 ft. Friday night and Saturday.
- highs 56-52 warming to 57 Saturday lows 32-33.