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June 2, 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 a cold front moving over the Pacific Northwest Saturday and another cold front right behind it Sunday. The graphics for days 3-7   Monday through Friday show a frontal system just to our northwest next Friday.

Forecast For The South Willamette Valley Including Eugene-Springfield:

  • Clear tonight,
  • Mostly sunny and a bit warmer Saturday, clear Saturday night,
  • Sunny Sunday, mostly clear at night,
  • Then sunny and a bit warmer Monday, clear Monday night.
  • low 42-52 highs 76-82.
  • Mostly sunny and a bit warmer Tuesday, mostly clear Tuesday night,
  • Partly cloudy and a bit cooler Wednesday, just partly cloudy at night,
  • Partly cloudy and a bit cooler with a slight (20%) chance of showers Thursday afternoon, partly cloudy Thursday night,
  • Then partly cloudy Friday.
  • highs 86-80 lows near 52.  (seasonal averages high 71 low 46)

Forecast for the Umpqua Valley including Roseburg:

  • Mostly clear tonight,
  • Sunny and a bit cooler Saturday, mostly clear Saturday night,
  • Sunny Sunday, mostly clear at night,
  • Mostly sunny and a bit warmer Monday, then mostly clear Monday night.
  • lows 46-54 highs 79-86.
  • Mostly sunny and a bit warmer Tuesday, partly cloudy with a slight (20%) chance of evening showers, just partly cloudy late Tuesday night,
  • Partly cloudy and a bit cooler with a slight (20%) chance of thunderstorms Wednesday and at night,
  • Partly cloudy and a bit cooler with a slight (20%) chance of thunderstorms Thursday afternoon and evening, just partly cloudy late Thursday night,
  • Then partly cloudy and a bit cooler with a slight (20%) chance of showers Friday afternoon.
  • highs 89-82 lows near 55. (seasonal averages high 74 low 51)

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

  • Partly cloudy with patchy evening fog, mostly cloudy tonight with patchy fog late then areas of fog late,
  • Partly cloudy with patchy AM coastal fog while areas of inland AM fog, sunny and a bit warmer Saturday afternoon, partly cloudy in the evening, mostly cloudy late Saturday night,
  • Sunny and a bit warmer Sunday and breezy (Coastal Wind: N 15-25 mph while Inland Wind: N 15-25 mph decreasing to N 10-15 mph in the afternoon), clear Sunday night and Windy (Coastal Wind: N 25-30 mph decreasing to N 15-25 mph in the evening and at night while (Inland Wind: N 15-25 mph decreasing to 10-15 mph late at night),
  • Mostly sunny and a bit warmer Monday, then mostly clear Monday night.
  • lows 44-47 highs 64-66.
  • Mostly sunny and a bit warmer Tuesday, partly cloudy Tuesday night,
  • Partly cloudy and a bit cooler with Wednesday, partly cloudy at night,
  • Mostly cloudy start, partly cloudy and a bit cooler with a slight (20%) chance of showers Thursday afternoon, mostly cloudy Thursday night,
  • Then mostly cloudy and a bit cooler Friday.
  • highs 67-64 lows 48-50. (seasonal averages high 62 low 50)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Mostly clear tonight,
  • Mostly sunny and a bit warmer Saturday and Sunday, mostly clear both nights,
  • Then mostly sunny and a bit warmer Monday, mostly clear Monday night.
  • free air freezing level 12,000 ft. tonight through Sunday, 13,000 ft. Sunday night through Monday night.
  • lows 38-44 highs 64-73.
  • Mostly sunny and a bit warmer Tuesday, partly cloudy with a slight (20%) chance of evening showers, just partly cloudy late Tuesday night,
  • Partly cloudy with a slight (20%) chance of AM showers, a bit cooler with a good (50%) chance of showers and a slight (20%) chance  of thunderstorms Wednesday afternoon, a good (50%) chance of evening showers, partly cloudy with a slight (20%) chance of showers late at night,
  • Partly cloudy with a slight (20%) chance of AM showers, a bit cooler with a (40%) chance of showers Thursday afternoon and evening, just partly cloudy late Thursday night,
  • Then partly cloudy and a bit cooler with a (30%) chance of showers Friday afternoon.
  • free air freezing level 13,000 ft. Tuesday, then snow level above 8,000 ft. Tuesday night through Friday.
  • highs 77-70 lows near 47.