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June 16, 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)  will keep temperatures at or a bit above normal. The graphics for days 1-3  show a cold front moving into the Pacific Northwest today and tonight. The graphics for days 3-7  Monday through Friday show a frontal system well offshore next Friday.

Forecast For The South Willamette Valley Including Eugene-Springfield:

  • AM sun, partly cloudy and warmer this afternoon, partly cloudy this evening, mostly cloudy with a slight (20%) chance of showers late tonight,
  • Mostly cloudy and cooler Saturday, partly cloudy at night,
  • Clouds and sun with a good (50%) chance of AM rain, a mix of clouds and sun and a bit cooler with a good (50%) chance of showers and a slight (20%) chance of thunderstorms Sunday afternoon (Father’s Day), then mostly cloudy with a good (50%) chance of showers Sunday night.
  • highs 83-63 low 53-44.
  • Mostly cloudy with AM showers likely (70%), showers with a slight (20%) chance of thunderstorms and a bit cooler Monday afternoon (Juneteenth), a good (50%) chance of evening showers and a slight (20%) chance of thunderstorms, partly cloudy with a slight (20%) chance of showers late Monday night,
  • A mix of clouds and sun and a bit warmer with a (30%) chance of showers Tuesday, partly cloudy at night,
  • Partly cloudy and a bit warmer Wednesday (Summer Solstice 7:57 am), mostly clear Wednesday night,
  • Then mostly sunny and a bit warmer Thursday.
  • highs 59-78 lows 45-47.  (seasonal averages high 74 low 48)

Forecast for the Umpqua Valley including Roseburg:

  • AM sun, partly cloudy and warmer this afternoon and evening, mostly cloudy late tonight,
  • Mostly cloudy and cooler Saturday,  mostly cloudy at night,
  • Mostly cloudy and a bit cooler cooler with a slight (20%) chance of showers Sunday (Father’s Day), then a (30%) chance of showers Sunday night.
  • highs 87-67 low 59-46.
  • Mostly cloudy with AM showers likely (70%),  a bit cooler with showers likely (70%) and a slight (20%) chance of thunderstorms Monday afternoon (Juneteenth), a good (50%) chance of  showers Monday night,
  • Mostly cloudy with a slight (20%) chance of showers and warmer Tuesday, partly cloudy at night,
  • Mostly sunny and a bit warmer Wednesday (Summer Solstice 7:57 am), mostly clear Wednesday night,
  • Then mostly sunny and a bit warmer Thursday.
  • highs 62-82 lows 46-52.  (seasonal averages high 76 low 52)

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

  • AM sun, partly cloudy and a bit warmer this afternoon and evening, mostly cloudy late tonight,
  • Mostly cloudy start, partly cloudy and a bit cooler Saturday afternoon, mostly cloudy in the evening, partly cloudy late at night,
  • Partly cloudy and a bit cooler Sunday (Father’s Day), partly cloudy with a slight (20%) chance of evening showers, then mostly cloudy with a (40%) chance of showers late Sunday night.
  • highs 69-62 lows 54-48.
  • Mostly cloudy with AM showers likely (70%), showers Monday afternoon (Juneteenth), a (40%) chance of showers Monday night,
  • Partly cloudy and a bit warmer with a slight (20%) chance of showers Tuesday, mostly clear at night,
  • Mostly sunny and a bit warmer Wednesday (Summer Solstice 7:57 am), mostly clear Wednesday night,
  • Then sunny and a bit warmer Thursday.
  • highs 62-67 lows near 48. (seasonal averages high 63 low 51)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Mostly sunny and a bit warmer today, partly cloudy tonight,
  • A mix of clouds and sun with a slight (20%) chance of rain and a bit cooler Saturday, mostly cloudy with a slight (20%) chance of rain at night,
  • Clouds and sun with a slight (20%) chance of AM rain and snow showers, a mix of clouds and sun and cooler with a good (50%) chance of showers Sunday afternoon (Father’s Day), mostly cloudy with evening showers likely (70%), then a good (50%) chance of rain and snow showers late Sunday night.
  • free air freezing level 13,000 ft. today, snow level above 8,000 ft. tonight, free air freeing level 12,000 ft. Saturday, snow level 8,000 ft. Saturday night, then 5,00 ft. Sunday and Sunday night.
  • highs 72-50 lows 44-32.
  • Mostly cloudy with rain and snow showers with a slight (20%) chance of thunderstorms and cooler Monday, rain and snow showers likely (70%) Monday night,
  • Mostly cloudy with a good (50%) chance of AM rain and snow showers, a mix of clouds and sun with a good (50%) chance of showers and a bit warmer Tuesday afternoon, partly cloudy with a slight (20%) chance of evening showers, just partly cloudy late at night,
  • AM sun, partly cloudy and warmer with a slight (20%) chance of showers Wednesday afternoon (Summer Solstice 7:57 am), mostly clear with a slight (20%) chance of evening showers, just mostly clear late Wednesday night,
  • Then mostly sunny and a bit warmer Thursday.
  • snow level 5,000 ft. Monday and Monday night, 5,500 ft. Tuesday, 6,500 ft. Tuesday night, 7,000 ft. Wednesday, 8,000 ft. Wednesday night, then free air freezing level 9,000 ft. Thursday.
  • highs 40-64 lows 32-36.