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June 10, 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

  • NONE AT THIS TIME.
  • 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

he Jet Stream Airflow is sending an Atmospheric River of moisture our way. The graphics for days 1-3 show the complex frontal system that will move through Oregon. The graphics for days 3-7   Monday through Friday show the next  frontal system will be off shore Wednesday then sliding through the Pacific Northwest Thursday and next Friday.

Forecast for the South Willamette Valley including Eugene-Springfield:

  • Cloudy with AM rain likely (70%), mostly cloudy with a good (50%) chance of rain and a bit cooler this afternoon (0.25 in. of rain possible), rain tonight (0.50 in. of rain possible),
  • Mostly cloudy and a bit cooler with a good (50%) chance of showers Saturday (0.10 in. of rain possible), showers likely (70%) and cooler late at night (0.10 in. of rain possible),
  • Mostly cloudy and a bit cooler with showers likely (70%) Sunday, a good (50%) chance of evening showers, then partly cloudy with a good (50%) chance of showers late Sunday night.
  • highs 72-64 lows 60-47.
  • A mix of clouds and sun and a bit warmer with a good (50%) chance of showers Monday, partly cloudy with a slight (20%) chance of evening showers, just partly cloudy late Monday night,
  • Partly cloudy and a bit warmer Tuesday, just partly cloudy at night,
  • Partly cloudy and a bit warmer Wednesday, a slight (20%) chance of showers late Wednesday night,
  • Then a mix of clouds and sun and a bit cooler with a good (50%) chance of showers Thursday.
  • highs 65-73 cooling to 69 Thursday lows 46-49. (Seasonal Averages high 72 low 47)

Forecast for the Umpqua Valley including Roseburg:

  • Mostly cloudy and a bit cooler with a (30%) chance of showers today, a good (50%) chance of evening showers, showers late tonight (under 0.10 in. of rain possible),
  • Mostly cloudy with patchy AM fog and showers likely (70%), showers likely (70%) and cooler with a slight (20%) chance of thunderstorms Saturday afternoon and evening (0.10 in. of rain possible), showers likely (70%) at night (0.10 in. of rain possible),
  • Mostly cloudy with showers likely (70%) and cooler Sunday, a good (50%) chance of showers, then a (40%) chance of showers Sunday night.
  • highs 82-63 lows 63-48.
  • Mostly cloudy with a slight (20%) chance of showers and a bit warmer Monday, partly cloudy in the evening, mostly clear Monday night,
  • Some AM clouds, sunny and a bit warmer Tuesday afternoon, mostly clear in the evening, partly cloudy at night,
  • Some AM clouds, sunny and a bit warmer Wednesday afternoon, mostly clear in the evening, party cloudy with a slight (20%) chance of showers late Wednesday night,
  • Then mostly cloudy and a bit cooler with a (30%) chance of showers Thursday.
  •  highs 65-75 cooling to 70 Thursday lows 47-52. (Seasonal Averages high 75 low 52).

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

  • Mostly cloudy with a good (50%) chance of AM coastal showers with coastal showers and a bit cooler this afternoon while a (40%) chance of inland showers today (0.10 in. of rain possible), coastal showers tonight while inland evening showers likely (70%) and inland showers late tonight (0.25 in. of rain possible),
  • Mostly cloudy with AM showers likely (70%) and patchy inland fog, a bit cooler with a good (50%) chance of showers Saturday afternoon and evening with patchy evening coastal fog (under 0.10 in. of rain possible), showers likely (70%) late Saturday night with areas of coastal fog while patchy inland fog at night, then showers likely (70%) late at night (under 0.10 in. of rain possible),
  • Mostly cloudy with patchy AM fog and showers likely (70%) a good (50%) chance of showers and a bit cooler Sunday afternoon, then patchy fog with a slight (20%) chance of showers Sunday night.
  • highs 69-62 lows 55-48.
  • Mostly cloudy with patchy AM fog and a slight (20%) chance showers, partly cloudy with a slight (20%) chance of showers and a bit warmer Monday afternoon, just partly cloudy Monday night,
  • Party cloudy and a bit warmer Tuesday, mostly clear in the evening, partly cloudy late at night,
  • Partly cloudy and a bit warmer Wednesday, mostly cloudy with a slight (20%) chance of evening showers, mostly cloudy with a (30%) chance of showers late Wednesday night,
  • Then mostly cloudy and a bit cooler with a (30%) chance of showers Thursday.
  • highs 63-67 cooling to 64 Thursday lows 47-49. (Seasonal Averages high 63 low 51)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Mostly cloudy with AM rain likely (70%), a bit cooler with a good (50%) chance of rain this afternoon (0.50 in. of rain possible), rain likely (70%) becoming showers late tonight,
  • Mostly cloudy with showers and a bit cooler Saturday, showers at night,
  • Mostly cloudy with AM showers, cooler with showers and a slight (20%) chance of thunderstorms Sunday afternoon, a (40%) chance of evening showers, then a slight (20%) chance of rain and snow showers late Sunday night.
  • snow level above 8,000 ft. today through Saturday night, above 8,000 ft. falling to 7,000 ft. Sunday afternoon, then 6,000 ft. falling to 5,000 ft. late Sunday night.
  • highs 64-49 lows 52-33.
  • A mix of clouds and sun with a good (50%) chance of rain and snow showers and a bit cooler Monday, partly cloudy with a slight (20%) chance of evening showers, just partly cloudy late Monday night,
  • Partly cloudy and a bit warmer Tuesday, mostly clear at night,
  • AM sun, partly cloudy and a bit warmer Wednesday afternoon, a slight (20%) chance of showers late Wednesday night,
  • Clouds and sun with a slight (20%) chance of AM showers, then a (40%) chance of showers and a bit cooler Thursday afternoon.
  • snow level 5,000 ft. rising to 5,500 ft. Monday afternoon, 6,000 ft. Monday evening, free air freezing level 6,500 ft. late Monday night, 5,000 ft. rising to 8,000 ft. Tuesday afternoon, 10,000 ft. rising to 11,000 ft. late Tuesday night, 12,000 ft. Wednesday, 11,000 ft. Wednesday evening, snow level 7,500 ft. rising to 8,000 ft. Thursday afternoon.
  • highs 46-64 cooling to 59 Thursday lows 33-39.