Here is my weekly weather quiz question. What is “Limnology?
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A blocking Upper Level High Pressure Ridge (“Arch” shape) is being pushed eastward with an Upper Level Low strengthening off the coast. The graphics for days 1-3 show system, show no frontal systems approaching the Pacific Northwest. The graphics for days 3-7 Friday through next Tuesday show a quiet weather pattern with a complex frontal system pushing through Oregon Friday through next Sunday.
Note: Sunday was a hot one. Record high 94 for Eugene and 95 for North Bend. Monday Eugene hit another record high 89.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 26 in the good category measuring Ozone.
Oakridge: The Air Quality Index is 13 in the good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 26 in the Good category measuring Ozone.
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:,
- Some AM clouds with patchy fog, sunny and a bit cooler this afternoon, partly cloudy with patchy fog tonight,
- Mostly sunny Wednesday, mostly clear at night,
- Some AM clouds, mostly sunny and a bit cooler Thursday, then mostly clear with patchy fog late Thursday night.
- highs 87-80 lows 54-52..
- Some AM clouds, mostly sunny Friday afternoon, mostly clear Friday night,
- Partly cloudy and a bit cooler Saturday and at night,
- Then partly cloudy and a bit cooler Sunday through Monday.
- highs 80-72 lows 53-47 (seasonal averages high 68 low 44)
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Home Wood Heating Advisory:
Posted Daily
Eugene-Springfield: GREEN– Burning is Allowed.
Oakridge: GREEN– Burning is Allowed.
*Note: Pellet stoves may be used anytime if they produce no visible emissions.
Data courtesy of Lane Regional Air Protection Agency (LRAPA
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Eugene-Springfield Pollen Count:
Grass Pollen: High (47)
Weeds: Moderate (31)
Tree Pollen: High (243)
Last counted: 5.14.23
Data courtesy of Oregon Allergy Associates.
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Forecast for the Umpqua Valley including Roseburg:
- Patchy AM fog, sunny and a bit cooler today, mostly clear tonight,
- Sunny and a bit warmer Wednesday, mostly clear at night,
- Mostly sunny and a bit cooler Thursday, then mostly clear Thursday night.
- highs 87-90 cooling to 83 Thursday lows 56-58 cooling to 55 Thursday night.
- Mostly sunny and a bit cooler Friday, mostly clear Friday night,
- Partly cloudy and a bit cooler Saturday and at night,
- Mostly cloudy start, partly cloudy Sunday afternoon, partly cloudy Sunday night,
- Then sunny and a bit cooler Monday.
- highs 82-74 lows 56-52. (seasonal averages high 71 low 48)
.
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- AM clouds with patchy fog, sunny and a bit warmer this afternoon, partly cloudy late tonight,
- Some AM clouds, sunny and a bit warmer Wednesday afternoon, partly cloudy at night,
- Partly cloudy and a bit cooler Thursday, then partly cloudy Thursday night.
- highs 67-70 cooling to 65 Thursday lows near 50.
- Partly cloudy and a bit warmer Friday and Friday night,
- Mostly cloudy and a bit cooler Saturday and at night,
- Mostly cloudy start, partly cloudy Sunday afternoon and Sunday night,
- Then sunny and a bit cooler Monday.
- highs 66-63 lows 52-48. (seasonal averages high 61 low 48)
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Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Partly cloudy with a slight (20%) chance of AM showers, a bit warmer with a slight (20%) chance of showers and thunderstorms this afternoon, just partly cloudy tonight,
- Mostly sunny Wednesday, mostly clear at night,
- Mostly sunny and a bit cooler with a slight chance of showers and thunderstorms Thursday afternoon, partly cloudy with a slight (20%) chance of evening showers and thunderstorms, then just partly cloudy late Thursday night.
- snow level above 8,000 ft. today, free air freezing level 12,000 ft. tonight and Wednesday, 13,000 ft. Wednesday night, then snow level above 8,000 ft. Thursday and Thursday night.
- highs 67-74 lows 42-46.
- Mostly sunny start, partly cloudy with a slight (20%) chance of showers and thunderstorms Friday afternoon, partly cloudy with a slight (20%) chance of evening showers, just partly cloudy late Friday night,
- Partly cloudy and a bit cooler with a slight (20%) chance of showers and thunderstorms Saturday afternoon and evening, just partly cloudy late at night,
- Partly cloudy and a bit cooler with a slight (20%) chance of showers Sunday afternoon and evening, just partly cloudy late Sunday night,
- Some AM clouds, then sunny Monday afternoon.
- snow level above 8,000 ft. Friday through Sunday night, then free air freezing level 13,000 ft. Monday.
- highs 74-62 lows 46-39.