Apr
16.
Here is my weekly weather quiz question. “What is a “Rain Induced Fog?”
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An Upper Level High Pressure Ridge brings the Pacific Northwest more sunshine. The graphics for days 1-3 show no frontal systems approaching Oregon with little or no effect on our weather. The graphics for days 3-7 Saturday through Wednesday show a frontal system offshore next Saturday moving across the Pacific Northwest between Saturday afternoon and next Sunday. A complex frontal system will be offshore Monday then moving in next Tuesday with another front right behind it.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 16 in the Good category measuring Particulate Matter.
Oakridge: The Air Quality Index is 11 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 10 in the Good category measuring Particulate Matter.
Data courtesy of Lane Regional Air Protection Agency (LRAPA)
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ADVISORIES:
- A FREEZE WARNING IS IN EFFECT UNTIL 9 AM TODAY FOR THE NORTH OREGON COAST RANGE, THE CENTRAL OREGON COAST RANGE, THE BENTON COUNTY LOWLANDS, THE LINN COUNTY LOWLANDS, THE LANE COUNTY LOWLANDS (WHICH INCLUDE EUGENE & SPRINGFIELD), THE UPPER HOOD RIVER VALLEY, THE CLACKAMAS COUNTY CASCADE FOOTHILLS, AND THE LANE COUNTY CASCADE FOOTHILLS,
- A FROST ADVISORY IS IN EFFECT UNTIL 9 AM TODAY FOR THE CLATSOP COUNTY COAST, TILLAMOOK COUNTY COAST, THE CENTRAL COAST OF OREGON, THE NORTH OREGON COAST RANGE LOWLANDS, THE CENTRAL OREGON COAST RANGE LOWLANDS, , THE LOWER COLUMBIA RIVER, THE TUALATIN VALLEY, PORTLAND WEST HILLS AND CHEHALEM MOUNTAIN, THE INNER PORTLAND METRO, EAST PORTLAND METRO, THE OUTER SOUTHEAST PORTLAND METRO, THE WEST CENTRAL WILLAMETTE VALLEY, THE EAST CENTRAL WILLAMETTE VALLEY, THE WEST COLUMBIA RIVER GORGE OF OREGON ABOVE 500 FT., AND THE WEST COLUMBIA RIVER GORGE I-84 CORRIDOR.
- A FROST ADVISORY IS IN EFFECT FROM 2 AM UNTIL 8 AM TODAY FOR THE SOUTH CENTRAL OREGON COAST.
- A FREEZE WARNING IS IN EFFECT FROM 3 AM UNTIL 9 AM TODAY FOR EASTERN CURRY COUNTY AND JOSEPHINE COUNTY, AND JACKSON COUNTY.
- A FLOOD WARNING IS IN EFFECT UNTIL EARLY FRIDAY APRIL 19 TH FOR THE OWYHEE RIVER BELOW THE OWYHEE DAM AFFECTING MALHEUR COUNTY.
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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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:
- Areas of AM frost, sunny and a bit warmer this afternoon, clear tonight,
- Sunny and a bit warmer Thursday, mostly clear at night,
- Sunny and a bit warmer Friday, then partly cloudy Friday night.
- highs 62-72 lows 35-44.
- Mostly sunny and a bit cooler with a slight (20%) chance of rain Saturday, mostly cloudy in the evening showers, partly cloudy late Saturday night,
- Mostly sunny and a bit cooler Sunday, partly cloudy at night,
- Mostly sunny and a bit warmer Monday, partly cloudy Monday night,
- Then mostly sunny and a bit cooler with a slight (20%) chance of rain Tuesday.
- highs 67-65 warming to 69 Monday cooling to 66 Tuesday lows near 42. (seasonal averages high 61 low 40)
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EUGENE-SPRINGFIELD POLLEN COUNT:
GRASS: ABSENT (0)
TREES: HIGH (277)
WEEDS: ABSENT (0)
Measured 4.16.24
Data courtesy of Oregon Allergy Associates.
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Home Wood Heating Advisory:
Eugene-Springfield: GREEN- Burning wood in wood stoves or fireplaces is allowed.
Oakridge: GREEN- Burning wood in wood stoves or fireplaces is allowed.
*Pellet stoves can be used anytime since they don’t produce the particulate smoke.
Data courtesy of Lane Regional Air Protection Agency (LRAPA)
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Forecast for the Umpqua Valley including Roseburg:
- Areas of AM frost, sunny and a bit warmer this afternoon, mostly clear with areas of frost tonight,
- Areas of AM frost, sunny and a bit warmer Thursday, mostly clear Thursday night,
- Sunny and a bit warmer Friday, then partly cloudy Friday night.
- highs 63-76 lows 36-47.
- Partly cloudy and a bit cooler with a slight (20%) chance of rain Saturday, partly cloudy Saturday night,
- Partly cloudy Sunday and at night,
- Partly cloudy and a bit warmer Monday and Monday night,
- Then partly cloudy and a bit cooler with a slight (20%) chance of rain Tuesday afternoon.
- highs 70-72 cooling to 68 Tuesday lows near 44. (seasonal averages high 63 low 42)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Areas of AM frost, sunny and a bit warmer today, mostly clear tonight,
- Then sunny and a bit warmer Thursday and Friday, partly cloudy both nights,
- highs 59-66 lows 40-45.
- Partly cloudy with a slight (20%) chance of AM rain, mostly cloudy and a bit cooler with a slight (20%) chance of rain Saturday afternoon, just partly cloudy Saturday night,
- Partly cloudy Sunday and in the evening, mostly cloudy Sunday night,
- Mostly cloudy start, then partly cloudy and a bit warmer Monday afternoon and evening, mostly cloudy Monday night,
- Mostly cloudy with a slight (20%) chance of AM rain, then partly cloudy and a bit cooler with a slight (20%) chance of rain Tuesday afternoon.
- highs 60-62 cooling back to 60 Tuesday lows 42-44. (seasonal average high 57 low 44)
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Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Sunny and a bit warmer today, clear tonight,
- Sunny and a bit warmer Thursday, mostly clear Thursday night,
- Sunny and a bit warmer Friday, then partly cloudy Friday night.
- free air freezing level 5,500 ft. this afternoon, 7,000 ft. falling to 6,500 ft. late tonight, 8,000 ft. Thursday afternoon, 9,000 ft. Thursday night and Friday, then 10,000 ft. Friday night.
- highs 48-60 lows 29-35.
- Mostly sunny and a bit cooler with a slight (20%) chance of rain Saturday, mostly cloudy with a slight (20%) chance of rain and snow Saturday night,
- Mostly sunny and a bit warmer Sunday, partly cloudy Sunday night,
- Mostly sunny and a bit warmer Monday, partly cloudy with a slight (20%) chance of rain and snow Monday night,
- Then mostly sunny and a bit cooler with a slight (20%) chance of rain and snow Tuesday.
- snow level 6,500 ft. Saturday, 6,000 ft. Saturday night, free air freezing level 8,000 ft. Sunday, 10,000 ft. Sunday night, 11,000 ft. Monday, then snow level 6,500 ft. Monday night and Tuesday.
- highs 57-59 cooling to 57 Tuesday lows 32-36.
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