Check out my latest Eugene Daily News Weather Or Not column:
http://eugenedailynews.com/2018/04/it-was-their-month-in-history-but-why-didnt-we-know-about-them/
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Here is my new weekly weather quiz question. What is “Differential Motion?” 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 Air High Pressure Ridge (Shaded “Arch” shape with arrows) clears us out and warms us up a bit for your Monday. The graphics for days 1-3 show the complex frontal system that is moving up to the coast Tuesday. The graphics for days 3-7 show the frontal systems that will move through the Pacific Northwest Friday and next Sunday.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 27 in the Good category measuring Particulate Matter.
Oakridge: The Air Quality Index is 8 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 8 in the Good category measuring Particulate Matter.
Data courtesy of Lane Regional Air Protection Agency (LRAPA)
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Advisories:
- A HIGH WIND WATCH IS IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY MORNING NEAR BEACHES AND HEADLANDS FOR THE NORTH OREGON COAST AND THE CENTRAL OREGON COAST.
- A WIND ADVISORY IS IN EFFECT FROM 4 AM UNTIL 5 PM TUESDAY FOR NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY.
- 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:
- Mostly cloudy with patchy fog this AM, mostly sunny and warmer this afternoon, partly cloudy tonight,
- Mostly cloudy and a bit cooler with rain Tuesday, a (40%) chance of showers Tuesday night,
- A bit cooler with rain Wednesday and at night.
- highs 66-53 lows 45-38.
- Mostly cloudy with showers and a bit cooler Thursday, a good (50%) chance of showers Thursday night,
- Cloudy and a bit warmer with a good (50%) chance of rain Friday, mostly cloudy and a bit warmer with a (30%) chance of rain at night and Saturday, cloudy with a good (50%) of rain Saturday night,
- Then mostly cloudy with a good (50%) chance of showers Sunday.
- highs 50-58 lows near 40. (seasonal averages high 60 low 39)
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Eugene-Springfield Pollen Count
Grass………. Low (0)
Trees………. High (396)
Last Counted: 3/30/18
Data Courtesy of Oregon Allergy Associates.
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Forecast for Roseburg:
- Patchy AM fog, sunny and much warmer this afternoon, partly cloudy this evening, becoming mostly cloudy with a slight (20%) chance of rain late tonight,
- Mostly cloudy and cooler with rain likely (70%) Tuesday, a (30%) chance of showers Tuesday night,
- Rain and a bit cooler Wednesday and in the evening, then a slight (20%) chance of rain and snow late at night.
- highs 75-55 lows 52-39.
- Mostly cloudy with a rain and snow showers a bit cooler Thursday, showers likely (70%) Thursday night,
- Mostly cloudy and a bit warmer with a (30%) chance of rain Friday, a slight (20%) chance of rain at night and Saturday, a (40%) chance of rain Saturday night,
- Then mostly cloudy and a bit cooler with a (40%) chance of showers Sunday.
- highs 52-63 cooling to 60 Sunday lows near 42. (seasonal averages high 60 low 41)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Patchy AM fog, sunny and a bit warmer this afternoon, partly cloudy this evening and mostly cloudy with a (30%) chance of coastal showers late tonight while partly cloudy inland in the evening inland then mostly cloudy with a slight (20%) chance of inland rain late tonight,
- Mostly cloudy with AM rain, rain likely (70%) and a bit cooler Tuesday afternoon, a (40%) chance of rain Tuesday night,
- Then rain and a bit cooler Wednesday and at night.
- highs 65-52 lows 49-42.
- Mostly cloudy with showers and a bit cooler Thursday, showers likely (70%) Thursday night,
- Cloudy and a bit warmer with a (40%) chance of rain Friday, a slight (20%) chance of rain and a bit warmer at night and Saturday, a good (50%) chance of rain Saturday night,
- Then mostly cloudy and a bit cooler with a (40%) chance of showers Sunday.
- highs 52-57 cooling to 55 Sunday lows near 44. (seasonal averages high 55 low 43)
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Forecast for the Cascades in Lane County:
- Partly cloudy this AM, mostly sunny and a bit warmer this afternoon, partly cloudy tonight,
- Mostly cloudy with AM rain likely (70%), rain and snow and cooler Tuesday afternoon, a good (50%) chance of evening rain and snow showers, a slight (20%) chance of rain and snow showers and a bit cooler Tuesday night,
- Rain and snow and a bit cooler Wednesday (1 in. of snow possible) and Wednesday night.
- free air freezing level 9,000 ft. rising to 10,000 ft. this afternoon, 11,000 ft. tonight, snow level 7,000 ft. falling to 5,500 ft. Tuesday afternoon, 5,000 ft. falling to 4,000 ft. late Tuesday night, 3,500 ft. rising to 4,500 ft. Wednesday, then 3,500 ft. Wednesday night.
- highs 58-42 lows 38-25.
- Mostly cloudy and a bit cooler with snow showers Thursday, rain and snow showers likely (70%) at night,
- Cloudy and a bit warmer with a good (50%) chance of rain and snow Friday, a slight (20%) chance of rain and snow Friday night,
- Mostly cloudy with a (30%) chance of rain and snow and a bit warmer Saturday, a good (50%) chance of rain and snow at night,
- Then a good (50%) chance of rain and snow and a bit cooler Sunday.
- snow level 2,500 ft. Thursday, 3,000 ft. Thursday night, 4,000 ft. Friday, then 5,500 ft. Friday night through Sunday.
- highs 34-45 cooling to 43 Sunday lows 26-29.
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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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