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) took over bringing dry and sunny weather, but that will change. The graphics for days 1-3 show the next frontal system moving through Oregon Thursday night and Friday. An Upper Level Low Pressure Trough (Shaded “U” shape with arrows) will help bring cooler temperatures and the precipitation chance our way by Thursday night continuing through next Tuesday. The graphics for days 3-7 show the frontal system that will be affecting the Pacific Northwest Sunday.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 33 in the Good category measuring Particulate Matter.
Oakridge: The Air Quality Index is 18 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 25 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:
- Mostly clear with patchy low clouds late tonight,
- Partly cloudy and much cooler Thursday afternoon, increasing clouds to mostly cloudy with a good (50%) chance of showers Thursday night 0.10 in. of rain possible,
- Mostly cloudy with showers likely (70%) and much cooler Friday, cloudy with a good (50%) chance of showers Friday night,
- Cloudy with with a good (50%) chance of showers Saturday, showers likely (70%) at night.
- lows 47-49 cooling to 45 Friday night and Saturday night highs 69-59.
- Cloudy and a bit cooler with with a good (50%) chance of showers Sunday, mostly cloudy with a (40%) chance of showers Sunday night,
- Mostly cloudy with a (30%) chance of showers and a bit warmer Monday, a slight (20%) chance of showers at night,
- A mix of clouds and a bit warmer Tuesday, partly cloudy in the evening, mostly cloudy late Tuesday night,
- Then a mix of clouds and sun and a bit warmer Wednesday.
- highs 55-68 lows 42-40 warming back to 42 Tuesday night. (seasonal averages high 63 low 41)
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Eugene-Springfield Pollen Count
Grass………. Low (3)
Trees………. Very High (926)
Last Counted: 4/25/18
Data Courtesy of Oregon Allergy Associates
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Forecast for Roseburg:
- Mostly clear tonight,
- Partly cloudy and a bit cooler Thursday, mostly cloudy in the evening with a (40%) chance of scattered evening thunderstorms, a (30%) chance of showers late Thursday night,
- Mostly cloudy and cooler with a (40%) chance of showers Friday, cloudy with a (40%) chance of showers at night,
- Cloudy with a (40%) chance of showers Saturday, mostly cloudy with a (40%) chance of evening showers and a slight (20%) chance of thunderstorms, a (40%) chance of showers Saturday night.
- lows 52-45 highs 74-58 warming to 60 Saturday.
- Cloudy with a good (50%) chance of AM showers, showers likely (70%) Sunday afternoon, a (30%) chance of showers at night,
- Mostly cloudy with a slight (20%) chance of showers and a bit warmer Monday and at night,
- Mostly cloudy and a bit warmer with a slight (20%) chance of showers Tuesday, then just partly cloudy Tuesday night and Wednesday.
- highs 57-74 lows 42-44. (seasonal averages high 65 low 43)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Mostly clear this evening, mostly cloudy with patchy coastal fog late tonight and Thursday AM, mostly cloudy and a bit cooler in the afternoon, mostly cloudy with a slight (20%) chance of isolated showers Thursday night,
- Cloudy with a (40%) chance of showers Friday, mostly cloudy with a (40%) chance of showers at night,
- Cloudy with a (40%) chance of showers and a bit cooler Saturday, then mostly cloudy with a good (50%) chance of showers Saturday night.
- lows 49-47 highs near 56.
- Cloudy with AM showers likely (70%), a bit cooler with a good (50%) chance of showers Sunday afternoon, mostly cloudy with a slight (20%) chance of showers at night.
- Mostly cloudy and a bit warmer with a slight (20%) chance of showers Monday and in the evening, just mostly cloudy Monday night,
- Partly cloudy and a bit warmer Tuesday, mostly clear at night,
- Then mostly sunny and a bit warmer Wednesday.
- highs 54-62 lows 44-43 warming to 45 Tuesday night. (seasonal averages high 56 low 44)
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Forecast for the Cascades in Lane County:
- Mostly clear tonight,
- AM sun, partly cloudy and a bit cooler with a slight (20%) chance of showers or thunderstorms late Thursday (0.10 in. of rain possible),
- Mostly cloudy and much cooler with showers likely (70%) Friday, cloudy with evening showers likely (70%), a good (50%) chance of showers late at night (1 in. of snow possible),
- Then cloudy with a good (50%) chance of rain and snow showers and a bit cooler Saturday (2-4 in. of snow possible), then a good (50%) chance of showers at night.
- free air freezing level 12,000 ft. tonight, snow level 10,000 ft. Thursday, 9,000 ft. Thursday night, 8,000 ft. Friday, 5,000 ft. Friday night, then 4,500 ft. Saturday and Saturday night.
- lows 40-32 highs 69-42.
- A bit cooler with showers likely (70%) Sunday, cloudy with a good (50%) chance of showers Sunday night,
- Mostly cloudy and a bit cooler with a (30%) chance of showers Monday, a slight (20%) chance of showers at night,
- Then a mix of clouds and sun and a bit warmer Tuesday and Wednesday, partly cloudy Tuesday night.
- snow level 4,500 ft. Sunday, 3,500 ft. Sunday night and Monday, 4,500 ft. Monday night, free air freezing level 6,500 ft. Tuesday, 8,000 ft. Tuesday night, then 10,000 ft. Wednesday.
- highs 39-58 lows 29-32.
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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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