May
06.
Here is my weekly weather quiz question. “What is “Relative Humidity?”
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An Upper Level High Pressure Ridge (“Arch” shape ) will be taking over drying us out and giving us serious warming. The graphics for days 1-3 show the frontal system that slid through Pacific Northwest Monday. The graphics for days 3-7 Friday through Tuesday show the frontal activity moving across the Pacific Northwest Sunday and another approaching next Tuesday.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 34 in the Good category measuring Ozone.
Oakridge: The Air Quality Index is 6 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 11 in the Good category measuring Particulate Matter.
Data courtesy of Lane Regional Air Protection Agency (LRAPA)
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ADVISORIES:
- A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 5 AM TODAY ABOVE 4,500 FT. FOR THE NORTHERN BLUE MOUNTAINS OF OREGON.
- A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 5 AM TODAY ABOVE 4,500 FT. FOR THE EAST SLOPES OF THE OREGON CASCADES
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:
- AM clouds and sun with a good (50%) chance of showers, a mix of clouds and sun and a bit warmer with a slight (20%) chance of showers this afternoon (under o.10 in. of rain possible), partly cloudy this evening, mostly clear with patchy frost late tonight,
- Sunny and a bit warmer Wednesday, clear at night,
- Sunny and warmer Thursday, then clear Thursday night.
- highs 59-79 lows 36-49.
- Sunny and a bit warmer Friday, clear Friday night,
- Sunny Saturday, clear at night,
- Sunny and a bit cooler Sunday (Mother’s Day), mostly clear Sunday night,
- Then mostly sunny and a bit cooler Monday.
- highs 84-73 lows 53-47 (seasonal averages high 67 low 43)
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EUGENE-SPRINGFIELD POLLEN COUNT:
GRASS: ABSENT (0)
TREES: LOW (8)
WEEDS: ABSENT (0)
Measured 5.5.24
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:
- Mostly cloudy and a bit warmer with a slight (20%) chance of rain today (under 0.10 in,. of rain possible), partly cloudy this evening, mostly clear with patchy frost late tonight,
- Patchy AM frost, sunny and warmer Wednesday afternoon, clear at night,
- Sunny and warmer Thursday, then clear Thursday night.
- highs 59-79 lows 39-54.
- Sunny and a bit warmer Friday, clear Friday night,
- Sunny and a bit warmer Saturday, clear at night,
- Mostly sunny and a bit cooler Sunday (Mother’s Day), mostly clear Sunday night,
- Some AM clouds, then sunny Monday afternoon.
- highs 87-74 lows 57-49. (seasonal average high 69 low 46)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Mostly cloudy and a bit warmer today, becoming mostly clear tonight,
- Sunny and a bit warmer Wednesday, clear at night,
- Sunny and warmer Thursday, then clear Thursday night.
- highs 57-72 lows 39-53.
- Sunny and as bit warmer Friday, clear Friday night,
- Mostly sunny and cooler Saturday, mostly clear at night,
- Some AM clouds, sunny and a bit cooler Sunday afternoon (Mother’s Day), partly cloudy Sunday night,
- Then partly cloudy Monday.
- highs 77-62 lows 50-48 warming back to 50 Sunday night. (seasonal average high 59 low 47)
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Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Mostly cloudy with a good (50%) chance of AM snow and rain showers, a mix of clouds and sun with a slight (20%) chance of rain and snow showers and a bit warmer this afternoon (0.25 in. of rain possible, 2 in. of snow possible, visibility 0.25 miles or less), mostly cloudy with a slight (20%) chance of evening rain and now showers, just partly cloudy late tonight,
- Sunny and warmer Wednesday, clear at night,
- Sunny and warmer Thursday, then clear Thursday night.
- snow level 3,000 ft. today, 3,500 ft. tonight, free air freezing level 8,000 ft. Wednesday afternoon, 11,000 ft. Wednesday night, 12,000 ft. Thursday, then 13,000 ft. Thursday night.
- highs 38-62 lows 23-40.
- Sunny and a bit warmer Friday clear Friday night,
- Sunny and slightly warmer Saturday, clear at night,
- Sunny and a bit cooler Sunday (Mother’s Day), mostly clear Sunday night,
- Then sunny and a bit cooler Monday.
- free air freezing level 13,000 ft. Friday and Friday night, then 12,000 ft. Saturday through Monday.
- highs 68-70 cooling to 64 Monday lows 42-44 cooling back to 42 Sunday night.
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