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June 14, 2022

Note: Weather is a constantly changing phenomenon and weather forecasting is a combination of science, experience, and intuition. The accuracy of any given forecast can chance due to unexpected changes in atmospheric conditions, so there are no guarantees the the actual weather will conform to the projected forecast.

ADVISORIES

  • A FREEZE WARNING IS IN EFFECT 2 AM UNTIL 8 AM WEDNESDAY FOR THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL AND EASTERN LAKE COUNTY.
  • A FLOOD WARNING IS IN EFFECT FOR THE COLUMBIA RIVER AT VANCOUVER AFFECTING MULTNOMAH COUNTY.
  • A PERMANENT RECREATIONAL HEALTH ADVISORY IS IN EFFECT FOR THE SOUTH UMPQUA RIVER AND MAINSTEM UMPQUA RIVER. THE ADVISORY COVERS THE SOUTH UMPQUA RIVER FROM CANYONVILLE DOWNSTREAM TO THE CONFLUENCE OF THE MAINSTEM UMPQUA RIVER, AND THE MAINSTEM UMPQUA RIVER DOWNSTREAM PAST ELKTON TO LAWSON BAR. PEOPLE IN THE BEDROCK ALONG THE RIVERS EDGE ARE ARE KNOWN TO DEVELOP CYANOBACTERIA (BLUE-GREEN ALGAE) BLOOMS THAT CAN BE HARMFUL TO PETS AND PEOPLE IF ACCIDENTAL INGESTION OCCURS. SIGNS HAVE BEEN POSTED AT SEVERAL ACCESS AREAS ALONG THE RIVER.

THE WEATHER PATTERN

An Upper Level High Pressure Ridge (“Arch” shape) will be moving in to clear out the rain and bring more sunshine to the Pacific Northwest. The graphics for days 1-3 show no frontal activity over Oregon through the period. A front will be offshore Wednesday then moving across Oregon Wednesday  night and early Thursday. The graphics for days 3-7   Friday through Tuesday show a front sliding down from the northwest next Tuesday.

Forecast for the South Willamette Valley including Eugene-Springfield:

  • Partly cloudy tonight,
  • Partly cloudy and a bit warmer Wednesday, partly cloudy Wednesday night,
  • A mix of clouds and sun and a bit cooler with a slight (20%) chance of showers Thursday, mostly cloudy with a slight (20%) chance of showers late at night,
  • Mostly cloudy and a bit cooler with a good (50%) chance of showers Friday, then a good (50%) chance of showers late Friday night.
  • lows 43-50 highs 72-66.
  • A mix of clouds and sun with a good (50%) chance of showers Saturday, partly cloudy with a slight (20%) chance of showers Saturday night,
  • Mostly cloudy and a bit warmer with a slight (20%) chance of showers Sunday (Father’s Day, Juneteenth), partly cloudy with a slight (20%) chance of evening showers, just mostly cloudy late at night,
  • Mostly cloudy start, partly cloudy and a bit warmer Monday afternoon, partly cloudy Monday night,
  • Then partly cloudy and a bit warmer Tuesday.
  • highs 68-73 lows near 50. (Seasonal Averages high 74 low 47)

Forecast for the Umpqua Valley including Roseburg:

  • Mostly clear this evening, partly cloudy late tonight,
  • AM sun, mostly cloudy and warmer Wednesday afternoon, party cloudy at night,
  • Mostly cloudy and a bit cooler with a slight (20%) chance of showers Thursday, a slight (20%) of showers late at night,
  • Mostly cloudy with a (40%) chance of AM showers, showers likely with a slight (20%) chance of thunderstorms and a bit cooler Friday afternoon, then mostly cloudy with a good (50%) chance of showers Friday night.
  • lows 46-52 cooling to 48 Friday night highs 78-62.
  • Mostly cloudy and a bit warmer with a (40%) chance of showers Saturday, a slight (20%) chance of showers Saturday night,
  • Mostly cloudy and a bit warmer with a slight (20%) chance of showers Sunday (Father’s Day, Juneteenth), just partly cloudy at night,
  • Partly cloudy and a bit warmer Monday, mostly clear in the evening, partly cloudy late Monday night,
  • Then partly cloudy and a bit warmer Tuesday.
  • highs 68-73 lows near 50. (Seasonal Averages high 76 low 52).

Forecast for the Oregon Coast including Coos Bay and North Bend:

  • Mostly clear this evening, partly cloudy late tonight,
  • Partly cloudy start, mostly cloudy and a bit warmer Wednesday afternoon, a (30%) chance of coastal showers Wednesday night while mostly cloudy with a (30%) chance of inland showers late Wednesday night,
  • Mostly cloudy with a (30%) chance of showers, just mostly cloudy and a bit cooler Thursday afternoon, a slight (20%) chance of showers late at night,
  • Mostly cloudy with a (40%) chance of AM showers, showers and a bit cooler with a slight (20%) chance of thunderstorms Friday afternoon, then mostly cloudy with a (40%) chance of showers Friday night.
  • lows 47-52 cooling to 49 Friday night highs 67-62.
  • Mostly cloudy and a bit warmer with a (40%) chance of showers Saturday, partly cloudy with a slight (20%) chance of evening showers, just partly cloudy late Saturday night,
  • Mostly cloudy Sunday (Father’s Day, Juneteenth), just mostly cloudy at night,
  • Partly cloudy and a bit warmer Monday, partly cloudy at night,
  • Then partly cloudy Tuesday.
  • highs 63-65 lows 50-52. (Seasonal Averages high 63 low 51)

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Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Partly cloudy tonight,
  • Mostly sunny start, partly cloudy and warmer Wednesday afternoon, partly cloudy Wednesday night,
  • A mix of clouds and sun and a bit cooler Thursday, mostly cloudy with a slight (20%) chance of showers late Thursday night,
  • Mostly cloudy with a good (50%) chance of AM showers, a bit cooler with showers likely (70%) Friday afternoon, a (50%) chance of evening showers with a slight (20%) chance of thunderstorms, a good (50%) chance of showers and a slight (20%) chance of thunderstorms, then a good (50%) chance of showers late Friday night.
  • free air freezing level 9,000 ft. rising to 12,000 ft. late tonight, 12,000 ft. Wednesday, 11,000 ft. falling to 9,000 ft. late Wednesday night, 7,500 ft. rising to 8,000 ft. Thursday afternoon, snow level 8,000 ft. Thursday night and Friday, then 7,000 ft. falling to 6,000 ft. late Friday night.
  • lows 35-42 cooling to 36 Friday night highs 65-54.
  • Clouds and sun with a slight (20%) chance of AM showers, a mix of clouds and sun and a bit cooler with a good (50%) chance of showers Saturday afternoon, partly cloudy with a (30%) chance of evening showers, just mostly cloudy late Saturday night,
  • A mix of clouds and sun and a bit warmer with a slight (20%) chance of showers Sunday (Father’s Day, Juneteenth), partly cloudy with a slight (20%) chance of evening showers, mostly cloudy at night,
  • Partly cloudy and a bit warmer Monday, partly cloudy Monday night,
  • Some AM clouds, then mostly sunny and a bit warmer Tuesday afternoon.
  • snow level  6,000 ft. rising to 6,500 ft. Saturday afternoon, 7,000 ft. Saturday evening, free air freezing level 8,000 ft. late Saturday night, snow level 6,500 ft. rising to 7,500 ft. Sunday afternoon, 7,500 ft. Sunday evening, free air freezing level 10,000 ft, Sunday night, 10,000 ft. Monday, 11,000 ft. rising to 12,000 ft. late Monday night, then 12,000 ft. Tuesday.
  • highs 50-62 lows 36-38.