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June 6, 2023

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

  • NONE AT THIS TIME.

HEALTH 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.

THE WEATHER PATTERN

An Upper Level High Pressure Ridge (“Arch” shape) is moving closer to the Pacific coast and will warm us up into next week.. The graphics for days 1-3  show no frontal systems approaching the Pacific Northwest. The graphics for days 3-7   Friday through Tuesday show a frontal system just to our northwest Friday then moving through Oregon Saturday and Sunday with a front offshore next Monday.

Forecast For The South Willamette Valley Including Eugene-Springfield:

  • Mostly sunny and a bit warmer today, partly cloudy tonight,
  • Partly cloudy and a bit cooler Wednesday, partly cloudy Wednesday night,
  • A mix of clouds and sun and a bit cooler Thursday, then partly cloudy Thursday night.
  • highs 88-80 low near 52.
  • A mix of clouds and sun and a bit cooler Friday, mostly cloudy Friday night,
  • A mix of clouds and sun Saturday, partly cloudy at night,
  • Partly cloudy and a bit warmer Sunday, mostly clear Sunday night,
  • Then mostly sunny and a bit warmer Monday.
  • highs 76-78 lows 52-49.  (seasonal averages high 72 low 46)

Forecast for the Umpqua Valley including Roseburg:

  • Sunny and a bit warmer today, partly cloudy with a slight (20%) chance of evening thunderstorms, just partly cloudy late tonight,
  • Mostly cloudy start, partly cloudy and cooler with a slight (20%) chance of thunderstorms Wednesday afternoon, partly cloudy with a slight (20%) chance of evening thunderstorms,  just mostly cloudy late at night,
  • Mostly cloudy with a slight (20%) chance of thunderstorms Thursday, then a slight (20%) chance of thunderstorms Thursday night.
  • highs 92-82 lows near 55.
  • Mostly cloudy and a bit cooler with a slight (20%) chance of thunderstorms Friday afternoon and evening, mostly cloudy late Friday night,
  • Partly cloudy with a slight (20%) chance of showers Saturday and at night,
  • Partly cloudy with a slight (20%) chance of showers Sunday, becoming mostly clear Sunday night,
  • Some AM clouds, then mostly sunny and a bit warmer with a slight (20%) chance of showers Monday afternoon.
  • highs 78-80 lows near 53. (seasonal averages high 74 low 51)

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

  • Sunny and a bit warmer today, partly cloudy this evening, mostly cloudy late tonight,
  • Mostly cloudy and a bit cooler with Wednesday, mostly cloudy at night,
  • Then mostly cloudy Thursday and Thursday night,
  • highs 69-65 lows 48-50.
  • Mostly cloudy Friday and Friday night,
  • Mostly cloudy and a bit warmer Saturday, mostly cloudy at night,
  • Mostly cloudy and a bit cooler Sunday, partly cloudy Sunday night,
  • Then partly cloudy Monday.
  • highs 66-64 lows near 50. (seasonal averages high 63 low 50)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • AM sun, partly cloudy and a bit warmer this afternoon, partly cloudy with a slight (20%) chance of evening showers and thunderstorms, just partly cloudy late tonight,
  • A mix of clouds and sun and a bit cooler with a good (50%) chance of showers and a slight (20%) chance of thunderstorms Wednesday afternoon, mostly cloudy with a good (50%) chance of showers and a slight (20%) chance of evening thunderstorms, partly cloudy with a slight (20%) chance of showers late at night,
  • 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 and a slight (20%) chance of thunderstorms Thursday afternoon, mostly cloudy with a (40%) chance of evening showers, then a slight (20%) chance of showers late Thursday night.
  • snow level above 8,000 ft. tonight through Thursday night,
  • highs 79-69 lows 48-45.
  • 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 Friday afternoon, mostly cloudy with a (40%) chance of evening showers, a slight (20%) chance of showers late Friday night,
  • AM clouds and sun with a slight (20%) chance of showers, a mix of clouds and sun with a (40%) chance of showers Saturday afternoon, partly cloudy with a (30%) chance of  evening showers, a slight (20%) chance of showers late at night,
  • Partly cloudy with a slight (20%) chance of AM showers, a (30%) chance of showers and a bit warmer Sunday afternoon, a slight (20%) chance of evening showers, just partly cloudy late Sunday night,
  • Then partly cloudy with a slight (20%) chance of showers Monday afternoon.
  • snow level above 8,000 ft. Friday through Monday.
  • highs 62-65 lows 42-40 warming back to 42 Monday.