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Tim Chuey Weather

Check out my latest Eugene Daily News Weather Or Not column:

http://eugenedailynews.com/2018/04/heres-a-new-one-have-you-ever-heard-of-a-dirty-thunderstorm/

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Here is my weekly weather quiz question. What is a “Downburst?”  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) displaces the low pressure bringing sunshine and dry weather through Friday. The graphics for days 3-7 show a weak frontal system pushing through the Pacific Northwest Sunday, then another frontal system slides in between Tuesday night and Wednesday, then another frontal system id offshore next Thursday.

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Air Quality Index:

Eugene/Springfield: The Air Quality Index is 28 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 14 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 36 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:

  • Partly cloudy tonight,
  • AM clouds, partly cloudy and a bit cooler Friday afternoon, mostly cloudy at night and Saturday (a bit warmer), mostly cloudy with a good (50%) chance of showers Saturday night (under 0.10 in. of rain possible),
  • A mix of clouds and sun and a bit cooler Sunday with a slight (20%) chance of afternoon showers, mostly cloudy with a slight (20%) chance of evening showers, then just partly cloudy late at night.
  • lows 44-52 cooling to 47 Sunday night highs 67-74 cooling to 72 Sunday.
  • Partly cloudy Monday AM, mostly sunny and a bit warmer in the afternoon, partly cloudy Monday night,
  • Partly cloudy and a bit warmer Tuesday with a (30%) chance of afternoon showers, partly cloudy with a (30%) chance of evening showers, mostly cloudy with a (30%) chance of showers late Tuesday night,
  • Mostly cloudy and cooler with a good (50%) chance of showers Wednesday and Wednesday night,
  • Then mostly cloudy and a bit cooler with a (30%) chance of showers Thursday.
  • highs 75-63 lows near 48. (seasonal averages high 65 low 42)

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Eugene-Springfield Pollen Count

Grass………. Moderate (8)
Trees………. High (239)
Last Counted: 5/3/18
Data Courtesy of Oregon Allergy Associates

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Forecast for Roseburg:

  • Partly cloudy this evening, mostly cloudy late tonight and Friday AM, partly cloudy and a bit cooler in the afternoon, mostly cloudy Friday night,
  • Mostly cloudy a bit warmer Saturday, a slight (20%) chance of evening thunderstorms, a (30%) chance of showers and a slight (20%) chance of thunderstorms late at night (under 0.10 in. of rain possible),
  • Mostly cloudy and a bit cooler with a slight (20%) chance of showers Sunday, just mostly cloudy in the evening, then mostly clear late Sunday night.
  • lows 48-54 cooling to 50 Sunday night highs 74-78.
  • Mostly sunny and a bit warmer Monday, mostly clear at night,
  • Partly cloudy with a slight (20%) chance of showers and a bit cooler Tuesday, partly cloudy with a (30%) chance of showers Tuesday night,
  • Mostly cloudy and a bit cooler with a (30%) chance of showers Wednesday, a slight (20%) chance of showers Wednesday night,
  • Then mostly cloudy and a bit cooler Thursday.
  • highs 82-68 lows 52-49. (seasonal averages high 67 low 45)

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

  • Mostly cloudy tonight,
  • Mostly cloudy and a bit warmer Friday and Friday night,
  • Mostly cloudy and a bit warmer Saturday, a slight (20%) chance of coastal showers at late at night while a slight (20%) chance of inland thunderstorms Saturday night,
  • Mostly cloudy with a slight (20%) chance of AM showers, partly cloudy and a bit cooler Sunday and at night.
  • lows 47-50 highs 58-65 cooling to 60 Sunday.
  • Mostly sunny and a bit warmer Monday, mostly clear at night,
  • Partly cloudy Tuesday, mostly cloudy with a (30%) chance of showers Tuesday night and Wednesday, then mostly cloudy with a slight (20%) chance of showers and a bit cooler Wednesday night and Thursday.
  • highs 62-60 lows near 50. (seasonal averages high 58 low 45)

 

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Forecast for the Cascades in Lane County:

  • Partly cloudy tonight,
  • Partly cloudy and a bit cooler Friday, becoming mostly cloudy Friday night,
  • A mix of clouds and sun and a bit warmer Saturday with a slight (20%) chance of afternoon showers and thunderstorms, mostly cloudy with a slight (20%) chance of showers and thunderstorms late at night,
  • A slight (20%) chance of AM showers, mostly cloudy and a bit cooler with a good (50%) chance of showers and a slight (20%) chance of thunderstorms Sunday afternoon and evening, then becoming partly cloudy late Sunday night.
  • free air freezing level 12,000 ft. tonight, 11,000 ft. Friday and Friday night, snow level above 8,000 ft. Saturday afternoon through Sunday, then 8,000 ft. Sunday night.
  • lows 39-42 cooling back to 39 Sunday night highs 62-66 cooling to 60 Sunday.
  • Partly cloudy Monday AM, mostly sunny and a bit warmer Monday afternoon, just partly cloudy at night,
  • Partly cloudy and a bit warmer with a (30%) chance of showers and a slight (20%) chance of thunderstorms Tuesday afternoon and evening, mostly cloudy with a (30%) chance of showers late Tuesday night,
  • Mostly cloudy and a bit cooler with a good (50%) chance of showers Wednesday and at night,
  • Then mostly cloudy  and a bit cooler with a (40%) chance of showers Thursday.
  • free air freezing level 11,000 ft. rising to 12,000 ft. Monday afternoon, 12,000 ft. rising to 13,000 ft. late Monday night, 13,000 ft. Tuesday AM, then snow level above 8,000 ft. Tuesday afternoon and Tuesday night, above 8,000 ft. falling to 8,000 ft. Wednesday, 8,000 ft. falling to 6,500 ft. Wednesday night, then 6,500 ft. Thursday.
  • highs 63-69 cooling to 50 Thursday lows 42-36.

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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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Get your local Eugene-Springfield and Lane County news on-line at eugenedailynews.com.

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