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 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 start, a mix of clouds and sun and cooler today, mostly cloudy tonight,
- Sunny Saturday, mostly clear with areas of frost late at night,
- Areas of AM frost, sunny and a bit warmer Sunday, then partly cloudy Sunday night.
- highs 58-65 lows 38-35 warming to 40 Sunday night.
- Mostly sunny and a bit warmer Monday, partly cloudy Monday night,
- Mostly sunny and a bit cooler Tuesday, partly cloudy at night,
- Mostly sunny and a bit cooler Wednesday, partly cloudy Wednesday night,
- Then mostly sunny and a bit warmer Thursday.
- highs 72-68 warming to 70 Thursday lows 44-43. (seasonal averages high 60 low 39).
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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 and cooler today, mostly cloudy with areas of frost late tonight,
- Some AM clouds, sunny and a bit warmer Saturday afternoon, clear with areas of frost late at night,
- Areas of AM frost, sunny and a bit warmer Sunday, then mostly clear Sunday night.
- highs 59-69. lows 40-36 warming to 42 Sunday night.
- Some AM clouds, sunny and warmer Monday afternoon, mostly clear Monday night,
- Partly cloudy and a bit cooler Tuesday, partly cloudy at night,
- Partly cloudy Wednesday, partly cloudy Wednesday night,
- Then sunny and a bit warmer Thursday.
- highs 77-72 warming to 74 Thursday lows 46-45. (seasonal averages high 62 low 42).
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Mostly cloudy and a bit cooler today and this evening, partly cloudy late tonight,
- Sunny and a bit warmer Saturday, clear with inland areas of frost late at night,
- Mostly sunny and a bit warmer Sunday, mostly clear Sunday night.
- highs 55-63 lows 38-43.
- Mostly cloudy and a bit warmer Monday, partly cloudy Monday night,
- Partly cloudy and a bit cooler Tuesday, partly cloudy at night,
- Partly cloudy Wednesday and Wednesday night,
- Then partly cloudy and a bit warmer Thursday.
- highs 65-62 warming to 64 Thursday lows 43-45 cooling to 42 Tuesday night.
- (seasonal averages high 56 low 43). _______________
Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Mostly cloudy start, a mix of clouds and sun and cooler with a (40%) chance of rain this afternoon, a (40%) chance of evening rain, snow and freezing rain, mostly cloudy with a slight (20%) chance of rain, freezing rain and snow late tonight,
- AM mix of clouds and sun, sunny and a bit cooler Saturday afternoon, mostly clear at night,
- Sunny and warmer Sunday, mostly clear Sunday night.
- snow level 5,000 ft. today, 4,500 ft. this evening, free air freezing level 4,500 ft. Saturday, 6,000 ft. falling to 5,500 ft. late Saturday night, 9,000 ft. Sunday, then 11,000 ft. Sunday night,
- highs 48-43 warming to 55 Sunday lows 27-25 warming to 33 Sunday night.
- Mostly sunny and a bit cooler Monday, mostly clear Monday night,
- Mostly sunny and a bit cooler Tuesday, partly cloudy at night,
- Mostly sunny and a bit cooler Wednesday, partly cloudy Wednesday night,
- Then sunny and a bit warmer Thursday.
- free air freezing level 12,000 ft. Monday, 11,000 ft. Monday night and Tuesday, 10,000 ft. Tuesday night, 11,000 ft. Wednesday, then 12,000 ft. Wednesday night and Thursday.
- highs 65-58 warming to 62 Thursday lows 38-35 warming to 37 Wednesday night.