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Tim Chuey Weather

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 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 Level Low Pressure Trough (Shaded “U” shape with arrows) is still sending us storms.  The graphics for days 1-3 show a warm front just offshore that moves through today. The graphics for days 3-7 show the frontal systems that will move through the Pacific Northwest Saturday night and Sunday. Then a frontal system moves inland from the Oregon and California coasts next Wednesday and Thursday.

 

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Air Quality Index:

Eugene/Springfield: The Air Quality Index is 13 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 12 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 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 a bit warmer with rain (0.10 in. of rain possible), a slight (20%) chance of evening rain, just mostly cloudy late tonight (under 0.10 in. of rain possible),
  • Cloudy with a slight (20%) chance of AM rain Saturday, a good (50%) chance of rain in the afternoon (under 0.10 in. of rain possible), rain Saturday night (0.50 in. of rain possible) and Sunday AM, showers and a bit cooler Sunday afternoon, then showers likely (70%) Sunday night.
  • highs 56-60 cooing to 50 Monday lows 42-45 cooling to 39 Sunday night.
  • Mostly cloudy with showers likely (70%) and a bit cooler Monday and Monday night,
  • A mix of clouds and sun and a bit warmer with a good (50%) chance of showers Tuesday, a (40%) chance of showers     at night,
  • Mostly cloudy with a (30%) chance of showers and a bit warmer Wednesday and Wednesday night,
  • Then just partly cloudy and a bit warmer Thursday.
  • highs 50-60 lows near 38. (seasonal averages high 60 low 39)

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Eugene-Springfield Pollen Count

Grass………. Low (0)
Trees………. Very High (755)
Last Counted: 4/7/18
Data Courtesy of Oregon Allergy Associates.

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Forecast for Roseburg:

  • Cloudy with rain likely (70%) changing to a good (50%) chance of rain and warmer  this afternoon (under 0.10 in. of rain possible), mostly cloudy with a slight (20%) chance of evening showers, just mostly cloudy late tonight,
  • Mostly cloudy and a bit warmer with a slight (20%) chance of rain Saturday afternoon, a good (50%) chance of evening rain, rain late Saturday night,
  • AM rain, mostly cloudy and a bit cooler with showers Sunday afternoon (afternoon snow level 3,500 ft.), rain and snow showers likely (70%) at night.
  • highs 60-63 cooling to 52 Sunday lows 42-44 cooling to 38 Sunday night.
  • Mostly cloudy and a bit cooler with rain and snow showers Monday, rain and snow showers likely (60%) Monday night,
  • A (40%) chance of rain and snow showers and a bit warmer Tuesday, a slight (20%) chance of showers at night and Wednesday, a (30%) chance of showers Wednesday night,
  • Then just partly cloudy Thursday.
  • highs 52-63 lows 38-42. (seasonal averages high 62 low 42)

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Forecast for The South Oregon Coast Including Coos Bay and North Bend:

  • Cloudy with AM coastal rain and a bit warmer while inland rain likely (70%) this AM (under 0.10 in. of rain possible), mostly cloudy with a slight (20%) chance of evening coastal showers, just mostly cloudy late tonight,
  • Mostly cloudy with a (30%) chance of rain and a bit warmer Saturday (under 0.10 in. of rain possible), rain Saturday night (0.50 in. of rain possible),
  • Mostly cloudy with AM rain, showers and a bit cooler Sunday afternoon, then showers likely (60%) Sunday night.
  • highs 56-52 lows 46-40.
  • Mostly cloudy with showers Monday, showers likely (70%) at night,
  • A (30%) chance of showers and a bit warmer Tuesday, a slight (20%) of showers and a bit warmer Tuesday night and Wednesday, a (30%) chance of showers at night,
  • Then just partly cloudy and a bit warmer Thursday.
  • highs 52-56 lows 40-42. (seasonal averages high 55 low 43)

 

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Forecast for the Cascades in Lane County:

  • Cloudy with rain and snow and a bit warmer today (0.25 in. of rain possible, 1-3 in. of snow possible), mostly cloudy with a slight (20%) chance of evening rain and snow, just mostly cloudy late tonight,
  • Mostly cloudy and a bit warmer with a slight (20%) chance of rain Saturday afternoon, cloudy with evening rain and snow, rain and snow  likely (70%) late at night (2 in. of snow possible),
  • AM rain and snow, rain and snow showers and a bit cooler Sunday afternoon (1-4 in. of snow possible), evening rain and snow showers, then snow showers and a bit colder late Sunday night.
  • snow level 3,500 ft. rising to 5,000 ft. this afternoon, 5,000 ft. tonight, 4,500 ft.  Saturday, 5,000 ft. Saturday night, 4,500 ft. Sunday, then 3,500 ft. falling to 2,500 ft. late Sunday night.
  • highs37-47 cooling to 39 Sunday lows 30-32 cooling to 24 Sunday night.
  • Snow showers likely (70%) and a bit cooler Monday and at night,
  • A mix of clouds and sun and a bit warmer with a good (50%) chance of snow showers Tuesday, a good (50%) chance of rain and snow showers Tuesday night,
  • Mostly cloudy with a (40%) chance of rain and snow showers and a bit warmer Wednesday and at night,
  • Then a mix of clouds and sun with a slight (20%) chance of rain and snow showers and a bit warmer Thursday.
  • snow level  2,500 ft. Monday and Monday night, 2,500 ft. Tuesday, 3,500 ft. Tuesday night and Wednesday, 4,500 ft. Wednesday night, the  3,500 ft. Thursday.
  • highs 33-44 lows 25-27 cooling back to 25 Wednesday night.

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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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