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June 29, 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

  • As the Upper Level Low Pressure Trough moves eastward and the High Pressure in the Southwest US Strengthens our way we keep dry a while longer. The graphics for days 1-3 show no frontal systems over or approaching Oregon. The graphics for days 3-7   Saturday through Wednesday show no frontal systems moving into the Pacific Northwest through the period, but one complex frontal system offshore next Tuesday.
  • NOTE: As usual, we have already had the sunny and hot weather that we should have for the Independence Day Holiday weekend, but no.. more clouds, cooler and even a slight chance of a shower for at least part of the long 4th of July Holiday weekend.

Forecast for the South Willamette Valley including Eugene-Springfield:

  • Mostly clear tonight,
  • Some AM clouds, mostly sunny and a bit warmer Thursday afternoon, mostly clear Thursday night,
  • A mix of clouds and sun and a bit warmer Friday, partly cloudy at night,
  • A mix of clouds and sun and a bit cooler Saturday, partly cloudy with a slight (20%) chance of evening showers, then mostly cloudy  Saturday night.
  • lows near 52 highs 78-80 cooling to 74 Saturday.
  • Mostly cloudy and a bit cooler with a slight (20%) chance of showers Sunday and Sunday night,
  • Mostly cloudy and a bit warmer with a slight (20%) chance of showers Monday (Independence Day), a slight (20%) chance of showers at night,
  • A mix of clouds and sun and a bit warmer with a slight (20%) chance of showers Tuesday, partly cloudy with a slight (20%) chance of evening showers, just partly cloudy late Tuesday night,
  • Then partly cloudy and a bit warmer with a slight (20%) chance of showers Wednesday.
  • highs 72-82 lows 52-54. (Seasonal Averages high 79 low 50)

Forecast for the Umpqua Valley including Roseburg:

  • Mostly clear this evening, partly cloudy late tonight,
  • Some AM clouds, sunny Thursday afternoon, mostly clear in the evening, partly cloudy late Thursday night,
  • AM clouds, sunny and a bit cooler Friday afternoon, mostly clear in the evening, partly cloudy late at night,
  • Mostly cloudy and a bit cooler Saturday, then mostly cloudy Saturday night.
  • lows 53-55 highs 80-74.
  • Mostly cloudy and a bit cooler with a slight (20%) chance of showers Sunday afternoon, a slight (20%) chance of showers Sunday night,
  • Mostly cloudy and a bit warmer with a slight (20%) chance of showers Monday (Independence Day), a slight (20%) chance of showers Monday night,
  • Partly cloudy and a bit warmer with a slight (20%) chance of showers Tuesday, just partly cloudy Tuesday night,
  • Then partly cloudy and a bit warmer Wednesday.
  • highs 70-80 lows 54-56. (Seasonal Averages high 81 low 55).

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

  • Mostly clear this evening,  becoming mostly cloudy late tonight,
  • AM clouds, sunny and a bit warmer Thursday afternoon, partly cloudy in the evening, mostly cloudy late Thursday night and Friday AM, partly cloudy and a bit cooler Friday afternoon and evening, mostly cloudy late at night,
  • Mostly cloudy and a bit cooler Saturday, then mostly cloudy Saturday night.
  • lows 50-52 highs 67-64.
  • Mostly cloudy and a bit warmer with a slight (20%) chance of showers Sunday, a slight (20%) chance of showers Sunday night,
  • Mostly cloudy with a slight (20%) chance of showers Monday (Independence Day) and at night,
  • Mostly cloudy and a bit warmer with a slight (20%) chance of showers Tuesday, partly cloudy with a slight (20%) chance of showers Tuesday night and Wednesday AM, then just partly cloudy Wednesday afternoon.
  • highs 65-69 lows 50-52. (Seasonal Averages high 65 low 53)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Clear tonight,
  • Sunny and a bit warmer Thursday, mostly clear Thursday night,
  • Mostly sunny and a bit cooler Friday, mostly clear at night,
  • Partly cloudy and a bit cooler with a slight (20%) chance of showers Saturday afternoon, then mostly cloudy with a slight (20%) chance of showers late Saturday night.
  • free air freezing level 13,000 ft. tonight, 12,000 ft. Thursday, 13,000 ft. Thursday night through Friday night, then snow level above 8,000 ft. Saturday and Saturday night.
  • lows 42-47 cooling to 44 Friday night highs 69-66.
  • Mostly cloudy and a bit cooler with a (40%) chance of showers Sunday, a (40%) chance of showers Sunday night,
  • Mostly cloudy with a (30%) chance of showers Monday (Independence Day), partly cloudy with a slight (20%) chance of evening showers, just partly cloudy late at night,
  • Partly cloudy and a bit warmer with a slight (20%) chance of showers Tuesday afternoon and evening, just partly cloudy late Tuesday night.
  • Then partly cloudy and a bit warmer with a slight (20%) chance of showers Wednesday afternoon.
  • snow level above 8,000 ft. Sunday and Sunday night, 8,000 ft. rising to above 8,000 ft. Monday afternoon and evening, free air freezing level 10,000 ft. late Monday night and Tuesday morning, snow level above 8,000 ft. Tuesday afternoon,
  • highs 57-67 lows 42-45.