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June 7, 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 into Sunday with a front to our northwest Tuesday then pushing through the Pacific Northwest next Wednesday.

Forecast For The South Willamette Valley Including Eugene-Springfield:

  • Partly cloudy and a bit cooler today, partly cloudy tonight,
  • Then a mix of clouds and sun and a bit cooler Thursday and Friday, partly cloudy both nights.
  • highs 82-76 low 52-50.
  • Partly cloudy and a bit warmer Saturday, partly cloudy Saturday night,
  • Mostly sunny and a bit warmer Sunday and Monday, mostly clear both nights,
  • Some AM clouds, then mostly sunny and a bit cooler Tuesday afternoon.
  • highs 78-82 cooling to 79 Tuesday lows 52-49.  (seasonal averages high 72 low 46)

Forecast for the Umpqua Valley including Roseburg:

  • Mostly cloudy start, partly cloudy and cooler with a slight (20%) chance of isolated thunderstorms this afternoon (small hail, heavy rain, and gusty winds possible), partly cloudy with a slight (20%) chance of isolated evening thunderstorms, just mostly cloudy late tonight,
  • Mostly cloudy with a slight (20%) chance of thunderstorms Thursday afternoon and evening, just mostly cloudy late at night,
  • Mostly cloudy and a bit cooler with a slight (20%) chance of showers Friday and Friday night,
  • highs 82-79 lows 54-56 cooling back to 54 Friday night.
  • Partly cloudy and a bit warmer Saturday, partly cloudy Saturday night,
  • Mostly sunny Sunday, mostly clear at night,
  • Then mostly sunny and a bit warmer Monday afternoon, mostly clear Monday night,
  • Then mostly sunny and a bit cooler Tuesday.
  • highs 82-84 cooling back to 82 Tuesday lows 53-55. (seasonal averages high 74 low 51)

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

  • Mostly cloudy and a bit warmer today, mostly cloudy tonight,
  • Mostly cloudy Thursday with a slight (20%) chance of inland afternoon showers, mostly cloudy Thursday night,
  • Then mostly cloudy Friday and Friday night.
  • highs near 65 lows near 49.
  • Mostly cloudy Saturday, partly cloudy Saturday night,
  • Partly cloudy Sunday and at night,
  • Some AM clouds, sunny Monday afternoon, partly cloudy Monday night,
  • Then partly cloudy and a bit cooler Tuesday.
  • highs 65-67 cooling back to 65 Tuesday lows 48-50. (seasonal averages high 63 low 50)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • A mix of clouds and sun and a bit cooler with a good (50%) chance of showers today and a slight (20%) chance of afternoon thunderstorms (0.25 in. of rain possible, more in storms), mostly cloudy with a good (50%) chance of evening showers and a slight (20%) chance of thunderstorms, a slight (20%) chance of thunderstorms late tonight,
  • 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 and evening, 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 Friday afternoon, mostly cloudy with a (40%) chance of evening showers, then a slight (20%) chance of showers late Friday night.
  • snow level above 8,000 ft. today through Friday night,
  • highs 74-63 lows 47-42.
  • Partly cloudy and a bit warmer with a slight (20%) chance of showers Saturday, just partly cloudy Saturday night,
  • Mostly sunny with a slight (20%) chance of showers and a bit warmer Sunday afternoon, a slight (20%) chance of evening showers, just mostly clear late at night,
  • AM sun, partly cloudy and a bit warmer with a slight (20%) chance of showers Monday afternoon and evening, just partly cloudy late Monday night,
  • Mostly sunny with a slight (20%) chance of AM showers, then partly cloudy and a bit cooler with a slight (20%) chance of showers Tuesday afternoon.
  • snow level above 8,000 ft. Saturday, free air freezing level 12,000 ft. Saturday night, then snow level above 8,000 ft. Sunday through Tuesday.
  • highs 65-69 cooling to 67 Tuesday lows near 43.