Check out my latest Eugene Daily News Weather Or Not column:
http://eugenedailynews.com/2018/05/introducing-the-father-of-tornado-research/
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Here is my weekly weather quiz question. What is “Effective Terrestrial Radiation?” The first person to post the correct answer as a comment on this page will win a week of free personalized weather forecasts tailored to your needs. Good luck.
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An Upper Level Low Pressure Trough will be cooling us down a bit with more clouds. The graphics for days 1-3 show the front that pushed through Tuesday. The graphics for days 3-7 show the next storm system that will approach and try to move through the Pacific Northwest late Friday night and early Saturday and another on Sunday.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 20 in the Good category measuring Ozone.
Oakridge: The Air Quality Index is 18 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 17 in the Good category measuring Ozone.
Data courtesy of Lane Regional Air Protection Agency (LRAPA)
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ADVISORIES:
HEALTH ADVISORIES:
- A PUBLIC HEALTH ADVISORY IS IN EFFECT FOR DETROIT LAKE, LOCATED 46 MILES SE OF SALEM. THE LAKE SPANS BOTH LINN AND MARION COUNTIES. WATER MONITORING HAS CONFIRMED THE PRESENCE OF BLUE-GREEN ALGAE AND THE TOXINS THEY PRODUCE IN DETROIT LAKE. PEOPLE SHOULD AVOID SWALLOWING WATER, OR INHALING WATER DROPLETS AS A RESULT OF HIGH-SPEED WATER ACTIVITIES, SUCH AS WATER SKIING OR POWER BOATING, IN AREAS WHERE BLOOMS ARE IDENTIFIED. ALSO KEEP PETS AWAY FROM THE WATER.
- 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:
- Partly cloudy and a bit warmer today and this evening, mostly cloudy late tonight,
- Cloudy with occasional drizzle and a slight (20%) chance of sprinkles Thursday AM, a bit cooler with a slight (20%) chance of sprinkles in the afternoon, just partly cloudy Thursday night,
- Then partly cloudy and a bit warmer Friday and Friday night.
- highs 67-64 warming to 70 Friday lows 46-44 warming to 48 Friday night.
- Partly cloudy and a bit warmer Saturday and at night,
- A mix of clouds and sun Sunday AM, mostly sunny and a bit cooler in the afternoon, partly cloudy Sunday night and Monday AM, mostly sunny in the afternoon, then partly cloudy Monday night and Tuesday.
- highs 74-68 lows near 46. (seasonal averages high 69 low 45)
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Eugene-Springfield Pollen Count
Grass………. Very High (667)
Trees………. Moderate (16)
Last Counted: 5/29/18
Data Courtesy of Oregon Allergy Associates
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Forecast for Roseburg:
- Partly cloudy this AM, sunny and a bit cooler this afternoon, mostly cloudy tonight,
- Mostly cloudy with a slight (20%) chance of AM showers, mostly cloudy Thursday afternoon, partly cloudy at night,
- Partly cloudy and a bit warmer Friday and Friday night.
- highs 65-74 lows 48-46 warming to 49 Friday night.
- Partly cloudy and a bit warmer Saturday and Saturday night,
- Then partly cloudy and a bit cooler Sunday through Monday night,
- Then partly cloudy and a bit warmer Tuesday.
- highs 78-72 warming to 74 Tuesday lows 52-50. (seasonal averages high 73 low 49)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Mostly cloudy this AM, partly cloudy and a bit warmer this afternoon, mostly cloudy tonight,
- Mostly cloudy with a slight (20%) chance of AM showers, partly cloudy and a bit warmer Thursday afternoon and at night,
- Partly cloudy Friday AM, then mostly cloudy in the afternoon and Friday night.
- highs near 62 lows 50-47 warming back to 50 Friday night.
- Partly cloudy Saturday through Monday night,
- Mostly cloudy Tuesday AM, then partly cloudy in the afternoon.
- highs near 62 lows near 50. (seasonal averages high 60 low 49)
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Forecast for the Cascades in Lane County:
- AM sun, partly cloudy and a bit warmer this afternoon and this evening, mostly cloudy late tonight,
- Mostly cloudy with a slight (20%) chance of AM showers, a slight (20%) chance of sprinkles and a bit cooler Thursday afternoon, partly cloudy with a slight (20%) chance of evening showers, just partly cloudy late Thursday night and Friday AM, mostly sunny and a bit warmer Friday afternoon, then partly cloudy Friday night.
- free air freezing level 10,000 ft. falling to 9,000 ft. this afternoon, 9,000 ft. falling to 8,000 ft. late tonight, snow level 5,500 ft. Thursday and Thursday night, 8,000 ft. rising to 9,000 ft. Friday afternoon, then 10,000 ft. rising to 12,000 ft. late Friday night.
- highs 56-49 warming to 62 Friday lows 35-38.
- Partly cloudy and a bit warmer Saturday and Saturday night,
- AM clouds and sun, mostly sunny and a bit cooler Sunday afternoon, just partly cloudy Sunday night through Monday night,
- Then partly cloudy and a bit cooler with a slight (20%) chance of showers Tuesday afternoon.
- free air freezing level free air freezing level 12,000 ft. Saturday and Saturday night, 12,000 ft. falling to 10,000 ft. Sunday, 10,000 ft. Sunday night, 10,000 ft. falling to 9,000 ft. Monday, 9,000 ft. falling to 8,000 ft. Monday night, 8,000 ft. Tuesday AM, then snow level 7,000 ft. Tuesday afternoon.
- highs 66-55 lows 39-36.
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**Because weather forecasting is a combination of science, intuition, and timing there can be no absolute guarantees that individual forecasts will be 100% accurate. Nature is in a constant state of flux and sudden unexpected weather events can happen.
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