Apr
16.
An Upper Level High Pressure Ridge (“Arch” shape) helps surface High Pressure bring more sunshine with frosty mornings. The graphics for days 1-3 show a frontal system offshore Saturday. The graphics for days 3-7 Sunday through Thursday show that cold front moving through the Pacific Northwest between Sunday and another one on Tuesday.
ADVISORIES:
- A FROST ADVISORY IS IN EFFECT FROM 1 AM UNTIL 9 AM FRIDAY FOR THE TILLAMOOK COUNTY COAST, THE NORTH OREGON COAST RANGE LOWLANDS, THE CENTRAL OREGON COAST RANGE LOWLANDS, THE NORTHERN OREGON COAST RANGE, THE CENTRAL OREGON COAST, THE CENTRAL OREGON OREGON COAST RANGE LOWLANDS, THE NORTH OREGON COAST RANGE, THE LOWER COLUMBIA RIVER VALLEY, TUALATIN VALLEY, THE PORTLAND WEST HILLS AND CHEHALEM MOUNTAIN, EAST PORTLAND METRO, SOUTHEAST PORTLAND METRO, WEST CENTRAL WILLAMETTE VALLEY, AND THE EAST CENTRAL WILLAMETTE VALLEY.
- A FROST ADVISORY IS IN EFFECT FROM MIDNIGHT TONIGHT UNTIL 11 AM FRIDAY THE SOUTH CENTRAL OREGON COAST AND CENTRAL DOUGLAS COUNTY.
- A FREEZE WARNING IS IN EFFECT FROM 1 AM UNTIL 9 AM FRIDAY FOR THE BENTON COUNTY LOWLANDS, LINN COUNTY LOWLANDS, 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 FRIDAY FOR THE LOWER COLUMBIA RIVER BASIN OF OREGON, AND THE FOOTHILLS OF THE NORTHERN BLUE MOUNTAINS OF OREGON.
- A FREEZE WARNING IS IN EFFECT FROM 11 PM TONIGHT UNTIL 9 AM FRIDAY FOR THE LOWER COLUMBIA RIVER BASIN OF OREGON AND AND THE FOOTHILLS OF THE NORTHERN BLUE MOUNTAINS OF OREGON.
- A FREEZE WARNING IS IN EFFECT FROM MIDNIGHT MDT UNTIL 10 AM MDT FRIDAY FOR THE OREGON LOWER TREASURE VALLEY.
- A FREEZE WARNING IS IN EFFECT FROM MIDNIGHT TONIGHT UNTIL 11 AM FRIDAY FOR EASTERN CURRY COUNTY AND JOSEPHINE COUNTY, AND JACKSON COUNTY.
- A FREEZE WARNING IS IN EFFECT FROM 1 AM UNTIL 9 AM FRIDAY FOR THE UPPER HOOD RIVER VALLEY, THE CASCADE FOOTHILLS OF MARION AND LINN COUNTIES, AND THE LANE COUNTY CASCADE FOOTHILLS.
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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SKI REPORT:
Willamette Pass Ski: Is closed until better snow conditions for Spring skiing.
Hoodoo Ski: Is closed until better snow conditions for Spring skiing.
Mt. Ashland Ski: IS CLOSED FOR THE SEASON.
Be sure to check their web pages for the latest updates.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 12 in the Good category measuring Particulate Matter.
Oakridge: The Air Quality Index is 26 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 12 in the Good category measuring Particulate Matter.
Data courtesy of Lane Regional Air Protection Agency (LRAPA.org)
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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:
- Mostly clear, widespread frost late tonight,
- Widespread AM frost, mostly sunny and a bit warmer Friday afternoon, partly cloudy Friday night,
- A mix of clouds and sun and a bit warmer Saturday, mostly cloudy with a slight (20%) of rain at night,
- Mostly cloudy and a bit cooler with a (30%) chance of rain Sunday afternoon, a (40%) chance of rain Sunday night.
- lows 32-47 highs 62-70 cooling to 68 Sunday.
- Mostly cloudy with a good (50%) chance of rain Monday afternoon and evening, rain likely (70%) Monday night,
- Mostly cloudy and a bit cooler with rain likely (70%) Tuesday afternoon, rain likely (70%) at night,
- Mostly cloudy and a bit cooler with a rain likely (70%) Wednesday, a slight (20%) chance of rain Wednesday night,
- A mix of clouds and sun and a bit warmer with a slight (20%) chance of rain Thursday.
- highs 66-62 lows 46-47 cooling to 44 Wednesday night (seasonal averages high 61 low 40).
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EUGENE-SPRINGFIELD POLLEN COUNT:`
GRASS POLLEN: ABSENT (0)
TREE POLLEN: HIGH (73)
WEEDS: ABSENT (0)
Wednesday 4.16.26
NOTE: DATA FROM OREGON ALLERGY ASSOCIATES.
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Forecast for the Umpqua Valley including Roseburg:
- Mostly clear with areas of frost late tonight,
- Areas of AM frost, mostly sunny and a bit warmer Friday afternoon, partly cloudy Friday night,
- A mix of clouds and sun and a bit warmer Saturday, mostly cloudy with a slight (20%) chance of rain at night,
- Mostly cloudy and a bit cooler with a (40%) chance of rain Sunday, then a good (50%) chance of rain Sunday night.
- lows 35-50 highs 64-76 cooling to 68 Sunday.
- Mostly cloudy and a bit warmer with a (40%) chance of rain Monday, evening rain likely (70%), a good (50%) chance of rain Monday night,
- Mostly cloudy with rain likely (70%) Tuesday afternoon, rain likely (70%) at night,
- Mostly cloudy with a good (50%) chance of rain Wednesday, a slight (20%) chance of rain Wednesday night,
- Then a mix of clouds and sun and a bit warmer Thursday.
- highs 66-62 lows 45-47 cooling to 46 Wednesday night (seasonal averages high 63 low 42).
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Mostly clear tonight,
- Mostly sunny and a bit warmer Friday, partly cloudy Friday night,
- A mix of clouds and sun Saturday, cloudy with a good (50%) chance of rain at night (0.25 in. of rain possible),
- Cloudy and a bit cooler with rain likely (70%) Sunday, then mostly cloudy with rain likely (70%) Sunday night.
- lows 40-50n cooling to 49 Sunday night highs 52-58.
- Mostly cloudy with rain likely (70%) Monday, rain likely (70%) Monday night,
- Mostly cloudy and a bit cooler with rain likely (70%) Tuesday, rain likely (70%) at night,
- Mostly cloudy and a bit cooler with rain likely (70%) Wednesday, a (30%) chance of rain Wednesday night,
- Then a mix of clouds and sun and a bit warmer with a slight (20%) chance of rain Thursday.
- highs 57-58 cooling to 55 Wednesday lows 47-48 (seasonal averages high 56. low 44).
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Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Mostly clear tonight,
- Sunny and warmer Friday, partly cloudy Friday night,
- Mostly sunny and a bit warmer Saturday, mostly cloudy with a slight (20%) chance of rain at night,
- Mostly cloudy with a good (50%) chance of rain and a bit cooler Sunday, then a good (50%) chance of rain Sunday night.
- free air freezing level 4,500 ft. falling to the surface late tonight, at the surface rising to 6,500 ft. Friday afternoon, 8,000 ft. Friday night, 8,000 ft. rising to 9,000 ft. Saturday afternoon, snow level 7,500 ft. Saturday night, 6,500 ft. Sunday, then 7,500 ft. Sunday night.
- lows 18-40 highs 49-58 cooling to 57 Sunday.
- Mostly cloudy and a bit warmer with rain likely (70%) Monday, rain with snow likely (70%) Monday night,
- Mostly cloudy with rain and snow and a bit cooler Tuesday, rain and snow at night,
- Mostly cloudy and a it cooler with rain and snow Wednesday, .
- snow level 6,500 ft. Sunday , 7,500 ft. Sunday night, 7,000 ft. Monday and Monday night, 6,500 ft. Tuesday, 6,000 ft. Tuesday night, then 5,500 ft. Wednesday.
- highs 53-54 cooling to 44 Wednesday lows 37-35.
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