Mar
18.
Here is my new weekly weather quiz question. “What is the “QPf Discussion?”
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An Upper Level High Pressure Ridge (“Arch” shape) is still keeping the warmer and dry weather over us for one more day. The ridge starts moving away from us by late Tuesday. The graphics for days 1-3 show no frontal systems approaching the Pacific Coast until Wednesday when a front will be offshore. The graphics for days 3-7 Friday through Tuesday show the frontal system offshore Friday that pushes through the Pacific Northwest overnight and Saturday, then a complex frontal system sits well offshore next Tuesday.
Note: The Vernal Equinox takes place this evening at 8:06 pm to begin the season of Spring.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 51 in the Moderate category measuring Particulate Matter.
Oakridge: The Air Quality Index is 34 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 54 in the Moderate category measuring Particulate Matter.
Data courtesy of Lane Regional Air Protection Agency (LRAPA)
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ADVISORIES:
- NONE AT THIS TIME.
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:
- Sunny and a bit cooler today, but still unseasonably warm, mostly clear this evening, mostly cloudy late tonight (Vernal Equinox 8:06 pm, Spring Begins),
- Mostly cloudy and cooler with a slight (20%) chance of rain Wednesday, a good (50%) chance of rain at night,
- Then mostly cloudy a bit warmer with with a good (50%) chance of rain Thursday and Thursday night.
- highs 69-60 warming to 62 Thursday lows 47-45.
- Mostly cloudy and a bit cooler with rain Friday and Friday night,
- Mostly cloudy and a bit cooler with showers and a slight (20%) chance of thunderstorms Saturday and at night,
- Mostly cloudy and a bit cooler with showers Sunday, showers likely (70%) Sunday night,
- Then mostly cloudy and a bit cooler with showers likely (70%) Monday.
- highs 60-53 lows 44-40. (seasonal averages high 57 low 38)
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EUGENE-SPRINGFIELD POLLEN COUNT:
GRASS: ABSENT (0)
TREES: VERY HIGH (750)
WEEDS: ABSENT (0)
Measured 3.18.24
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:
- Some AM clouds with patchy fog, sunny and a bit cooler this afternoon, mostly clear this evening, partly cloudy late tonight (Vernal Equinox 8:06 pm, Spring Begins),
- Mostly cloudy and a bit cooler with a slight (20%) chance of showers Wednesday, a (30%) chance of showers at night,
- Mostly cloudy and a bit warmer with a slight (20%) chance of showers Thursday, then a good (50%) chance of showers Thursday night.
- highs 70-63 warming to 65 Thursday lows near 46.
- Mostly cloudy with showers and a bit cooler Friday, showers Friday night,
- Mostly cloudy with showers and a bit cooler Saturday and in the evening, rain and snow showers late at night,
- Mostly cloudy and a bit cooler with rain and snow showers Sunday, then rain and snow showers Sunday night and Monday.
- highs 62-54 lows 45-42. (seasonal average high 59 low 40)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- AM clouds with patchy fog, mostly cloudy and a bit cooler this afternoon and evening, mostly cloudy late with a slight (20%) chance of coastal showers tonight (Vernal Equinox 8:06 pm, Spring Begins),
- Mostly cloudy and a bit warmer with a (30%) chance of rain Wednesday, a (30%) chance of showers at night,
- Mostly cloudy and a bit cooler with a (40%) chance of showers Thursday and in the evening, then showers likely (70%) late Thursday night.
- highs 58-60 lows 45-47 cooling back to 45 Thursday night.
- Mostly cloudy and a bit cooler with showers Friday through Saturday night,
- Then mostly cloudy with showers Monday.
- highs 59-55 lows 45-42. (seasonal average high 55 low 42)
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Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Sunny and a bit cooler today, mostly clear this evening, partly cloudy late tonight (Vernal Equinox 8:06 pm, Spring Begins),
- A mix of clouds and sun with a slight (20%) chance of rain and cooler Wednesday, a good (50%) chance of rain and snow Wednesday night,
- A mix of clouds and sun with a good (50%) chance of rain and snow Thursday, then mostly cloudy with a good (50%) chance of rain and snow Thursday night.
- free air freezing level 10,000 ft. today and tonight, snow level 5,500 ft. Wednesday, 5,000 ft. Wednesday night and Thursday, then 6,000 ft. Thursday night.
- highs 60-48 lows 35-33.
- Mostly cloudy and a bit cooler with rain and snow Friday, rain and snow Friday night,
- Mostly cloudy with rain and snow showers and a bit cooler Saturday, rain and snow showers at night,
- Mostly cloudy and a bit cooler with snow and rain showers Sunday, then rain and snow showers Sunday night and Monday.
- snow level 5,500 ft. Friday, 5,000 ft. Friday night, 4,000 ft. Saturday, 3,500 ft. Saturday night, 3,000 ft. Sunday and Sunday night, then 3,500 ft. Monday.
- highs 46-36 lows 30-28.
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