Check out my latest Eugene Daily News Weather Or Not column:
http://eugenedailynews.com/2018/04/active-volcanoes-are-all-over-the-earth-but-even-in-space/
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Here is my weekly weather quiz question What is “Doppler Radar?” 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 High Pressure Ridge (Shaded “Arch” shape with arrows) takes over bringing dry and sunny weather at least for a while. The graphics for days 1-3 show the next frontal system moving down from the northwest. The graphics for days 3-7 show the frontal systems that will be affecting the Pacific Northwest from Wednesday through next Monday. An Upper Level Low Pressure Trough (Shaded “U” shape with arrows) will help bring those fronts and the precipitation chance our way by Thursday night continuing through next Monday.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 18 in the Good category measuring Particulate Matter.
Oakridge: The Air Quality Index is 59 in the Moderate category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 20 in the Good category measuring Particulate Matter.
Data courtesy of Lane Regional Air Protection Agency (LRAPA)
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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 warmer today, mostly clear tonight,
- Mostly sunny and a bit warmer Wednesday, mostly clear at night,
- AM sun, partly cloudy and much cooler Thursday afternoon, mostly cloudy with a (30%) chance of evening showers and a slight (20%) chance of thunderstorms, then a (30%) chance of showers late Thursday night.
- highs 80-82 cooling to 69 Thursday lows near 48.
- Mostly cloudy with a (40%) chance of showers and much cooler Friday, cloudy with a (40%) chance of showers Friday night,
- Cloudy with with a good (50%) chance of showers Saturday and at night,
- A (40%) chance of showers Sunday, partly cloudy with a slight (20%) chance of showers Sunday night,
- Then mostly cloudy with a slight (20%) chance of showers Monday.
- highs near 59 lows 45-39. (seasonal averages high 62 low 40)
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Eugene-Springfield Pollen Count
Grass………. Low (0)
Trees………. High (410)
Last Counted: 4/20/18
Data Courtesy of Oregon Allergy Associates
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Forecast for Roseburg:
- Sunny and and warmer today and Wednesday, mostly clear both nights,
- Partly cloudy and a bit cooler Thursday, mostly cloudy with a slight (20%) chance of showers late Thursday night.
- highs 87-75 lows near 50.
- Mostly cloudy and cooler with a (30%) chance of showers Friday and at night,
- A (40%) chance of showers and a bit cooler Saturday and Saturday night,
- Mostly cloudy and a bit cooler with a (30%) chance of showers Sunday, then a slight (20%) chance of showers Sunday night and Monday (a bit warmer).
- highs 64-59 warming to 62 Monday lows 46-42. (seasonal averages high 64 low 43)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Sunny and a bit warmer today, mostly clear this evening, partly cloudy late tonight with patchy coastal fog,
- Mostly cloudy with AM coastal fog and sunny Wednesday afternoon while sunny inland Wednesday, mostly clear at night,
- Partly cloudy and a bit cooler Thursday, mostly cloudy with a slight (20%) chance of showers late Thursday night.
- highs 68-60 lows 46-49.
- Mostly cloudy and a bit cooler with a (30%) chance of showers Friday and at night,
- A (40%) chance of showers and a bit cooler Saturday and Saturday night,
- Mostly cloudy with a (30%) chance of showers Sunday, then a slight (20%) chance of showers at night and Monday.
- highs 57-55 lows 47-43. (seasonal averages high 56 low 44)
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Forecast for the Cascades in Lane County:
- Sunny and warmer today, mostly clear tonight,
- Mostly sunny and a bit cooler Wednesday, mostly clear Wednesday night,
- AM sun, partly cloudy and a bit cooler with a slight (20%) chance of showers and thunderstorms Thursday afternoon, mostly cloudy with a slight (20%) chance of showers and thunderstorms Thursday night.
- free air freezing level 12,000 ft. today, 11,000 ft. tonight, 11,000 ft. rising to 12,000 ft. Wednesday afternoon, 12,000 ft. Wednesday night, snow level above 8,000 ft. Thursday and Thursday night.
- highs 68-65 lows 42-40.
- A mix of clouds and sun and much cooler with a (40%) chance of showers Friday, mostly cloudy with a good (50%) chance of showers at night,
- A good (50%) chance of rain and snow showers and a bit cooler Saturday and Saturday night,
- Cloudy and a bit cooler with a good (50%) chance of rain and snow showers Sunday, mostly cloudy with a (30%) chance of rain and snow showers at night,
- Then partly cloudy with a slight (20%) chance of rain and snow showers Monday.
- snow level above 8,000 ft. Friday, 7,500 ft. Friday night, 5,500 ft. Saturday and Saturday night, 4,500 ft. Sunday and Sunday night, then 3,500 ft. Monday.
- highs 52-43 lows 33-30.
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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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Get your local Eugene-Springfield and Lane County news on-line at eugenedailynews.com.
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