Mar
13.
Here is my new weekly weather quiz question. “What is a “Psychrometer?”
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An Upper Level High Pressure Ridge (“Arch” shape) is strengthening and will taking over with warmer and dry weather. The graphics for days 1-3 show no frontal systems approaching the Pacific Coast. The graphics for days 3-7 Sunday through Thursday show the frontal system that be offshore Monday and Tuesday.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 21 in the Good category measuring Particulate Matter.
Oakridge: The Air Quality Index is 42 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 46 in the Good 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:
- Widespread AM frost, mostly sunny and warmer this afternoon, mostly clear tonight,
- Mostly sunny and warmer Friday, clear at night,
- Mostly sunny and a bit warmer Saturday, then clear Saturday night.
- highs 58-73 lows 35-42.
- Mostly sunny and a bit cooler Sunday afternoon, mostly clear Sunday night,
- Some AM clouds, mostly sunny and a bit cooler Monday afternoon, partly cloudy at night,
- Partly cloudy and a bit cooler Tuesday, a slight (20%) chance of evening rain, mostly cloudy with a slight (20%) chance of rain late Tuesday night (Vernal Equinox 8:06 pm, Spring Begins),
- Then mostly cloudy and a bit cooler with a (30%) chance of rain Wednesday.
- highs 72-57 lows 43-45 cooling to 42 Monday night. (seasonal averages high 57 low 37)
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EUGENE-SPRINGFIELD POLLEN COUNT:
GRASS: ABSENT (0)
TREES: MODERATE (36)
WEEDS: ABSENT (0)
Measured 3.13.24
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:
- Sunny and a bit warmer today and Friday, clear both nights,
- Sunny Saturday, then clear Saturday night.
- highs 62-70 lows 37-43.
- Sunny Sunday, mostly clear Sunday night,
- Mostly sunny and a bit warmer Monday, mostly clear in the evening, partly cloudy late at night,
- Mostly cloudy start, partly cloudy with a slight (20%) chance of showers and a bit cooler Tuesday afternoon, partly cloudy with a slight (20%) chance of evening showers, mostly cloudy with a slight (20%) chance of showers Tuesday night
- (Vernal Equinox 8:06 pm, Spring Begins),
- Then mostly cloudy with a slight (20%) chance of rain Wednesday.
- highs 70-72 cooling to 62 Wednesday lows 45-47 cooling back to 45 Tuesday night. (seasonal average high 59 low 40)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Sunny and a bit warmer today and Friday, clear both nights,
- Sunny and a bit cooler Saturday, then mostly clear Saturday night.
- highs 62-69 cooling to 66 Saturday lows 42-44.
- Mostly sunny and a bit cooler Sunday, mostly clear Sunday night,
- Some AM clouds, sunny and a bit cooler Monday afternoon, partly cloudy in the evening, mostly cloudy at night,
- Mostly cloudy start, partly cloudy and a bit cooler with a slight (20%) chance of showers Tuesday afternoon, mostly cloudy with a slight (20%) chance of showers Tuesday night (Vernal Equinox 8:06 pm, Spring Begins),
- Then mostly cloudy and a bit cooler with a slight (20%) chance of showers Wednesday.
- highs 63-57 lows 45-43. (seasonal average high 55 low 42)
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Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Mostly sunny and warmer today, clear tonight,
- Mostly sunny and a bit warmer Friday, mostly clear at night,
- Sunny and a bit warmer Saturday, then clear Saturday night.
- free air freezing level 5,000 ft. rising to 9,000 ft. this afternoon, 10,000 ft. tonight, 9,000 ft. rising to 11,000 ft. Friday, then 11,000 ft. Friday night through Saturday night.
- highs 43-56 lows 26-30.
- Mostly sunny Sunday and Monday, clear both nights,
- Partly cloudy with a slight (20%) chance of rain Tuesday, a good (50%) chance of rain Tuesday night (Vernal Equinox 8:06 pm, Spring Begins),
- A mix of clouds and sun with a good (50%) chance of rain and a bit cooler Wednesday.
- free air freezing level 10,000 ft. Sunday, 11,000 ft. Sunday night and Monday, 10,000 ft. Monday night, snow level 7,000 ft. Tuesday, 6,500 ft. Tuesday night, then 5,000 ft. Wednesday.
- highs 56-45 lows 32-34 cooling back to 32 Tuesday night.
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