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July 8, 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

  • A RED FLAG WARNING IS IN EFFECT UNTIL 11 PM TONIGHT FOR ABUNDANT LIGHTNING FOR THE CENTRAL MOUNTAINS OF OREGON.
  • A RED FLAG WARNING IS IN EFFECT UNTIL 11 PM TONIGHT FOR ABUNDANT LIGHTNING FOR THE SOUTHERN BLUE AND STRAWBERRY MOUNTAINS, AND THE CENTRAL BLUE MOUNTAINS.

HEALTH ADVISORIES

  • A RECREATIONAL USE HEALTH ADVISORY IS IN EFFECT FOR GALESVILLE RESERVOIR IN DOUGLAS COUNTY DUE TO THE PRESENCE OF A CYANOBACTERIA BLOOM. PEOPLE SHOULD AVOID SWIMMING AND HIGH SPEED WATER ACTIVITIES, SUCH AS WATER SKIING OR POWER BOATING, IN AREAS OF THE RESERVOIR WHERE BLOOMS ARE, AS THE MAJOR ROUTE OF EXPOSURE IS INGESTION OF WATER. TOXINS ARE NOT ABSORBED THROUGH THE SKIN, HOWEVER, THOSE WITH SKIN SENSITIVITIES MAY GET A PUFFY RED RASH. THE OREGON HEALTH AUTHORITY ENCOURAGES PEOPLE TO VISIT THE GALESVILLE RESERVOIR AND ENJOY ACTIVITIES SUCH AS FISHING, CAMPING, HIKING, BILKING, PICNICKING, BIRD WATCHING, CANOEING, AND KAYAKING. BOATING IS SAFE AS LONG AS SPEEDS DO NOT CREATE EXCESSIVE WATER SPRAY.. SPRAYS COULD LEAD TO THE RISK OF INHALING CYANOTOXINS.
  • 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 offshore) will keep up the onshore airflow. Still no chance of getting the much needed rain for the Willamette Valley and Eastern Oregon.  The graphics for days 1-3  show no frontal systems approaching the coast. The graphics for days 3-7   Tuesday through Saturday show no fronts pushing into or through the Pacific Northwest during rest of the period. There will be a cold front well to the Northwest next Friday and Saturday.

Forecast For The South Willamette Valley Including Eugene-Springfield:

  • Partly cloudy tonight,
  • AM clouds, sunny and a bit warmer Sunday afternoon, partly cloudy Sunday night,
  • Partly cloudy Monday, mostly clear at night,
  • Some AM clouds, mostly sunny and a bit warmer Tuesday afternoon, then clear Tuesday night.
  • lows 50-52 highs 79-83.
  • Mostly sunny Wednesday, clear Wednesday night,
  • Sunny and a bit warmer Thursday, clear at night,
  • Then sunny and a bit warmer Friday and Saturday, clear Friday night,
  • highs 83-93 lows 50-54.  (seasonal averages high 83 low 51)

Forecast for the Umpqua Valley including Roseburg:

  • Mostly clear with patchy fog late tonight,
  • AM clouds, sunny and a bit warmer Sunday afternoon, mostly clear in the evening, partly cloudy late Sunday night,
  • AM clouds, sunny Monday afternoon, mostly clear at night,
  • Sunny and a bit warmer Tuesday, then clear Tuesday night.
  • lows 54-56 highs 83-87.
  • Sunny and a bit cooler Wednesday, clear Wednesday night,
  • Then sunny and a bit warmer Thursday Friday, and Saturday, clear each night.
  • highs near 86-97 lows 55-59. (seasonal averages high 84 low 57)

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

  • Partly cloudy with patchy late evening fog, mostly cloudy with patchy fog late tonight,
  • AM clouds with patchy fog, sunny and a bit warmer Sunday afternoon, mostly cloudy with patchy fog late Sunday night,
  • Mostly cloudy with patchy AM fog and a slight (20%) chance of coastal drizzle, sunny and a bit warmer Monday afternoon, mostly clear in the evening, mostly cloudy late Monday night,
  • Partly cloudy and a bit warmer Tuesday, then partly cloudy Tuesday night.
  • lows 50-52 highs 68-70.
  • Partly cloudy Wednesday, mostly clear Wednesday night,
  • Mostly sunny Thursday, mostly clear at night,
  • Then mostly sunny and a bit warmer Friday and Saturday, mostly clear Friday night.
  •  highs 70-74 lows near 52. (seasonal averages high 66 low 53)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Mostly clear with a slight (20%) chance of evening showers and thunderstorms, just mostly clear late tonight,
  • Mostly sunny and a bit warmer Sunday,  partly cloudy with a slight (20%) chance of evening showers and thunderstorms, just partly cloudy late Sunday night,
  • Some AM clouds, sunny and a bit cooler Monday afternoon, clear at night,
  • Sunny and a bit warmer Tuesday, then clear Tuesday night.
  • snow level above 8,000 ft. tonight, free air freezing level 13,000 ft. rising to 14,000 ft. Sunday afternoon, snow level above 8,000 ft. Sunday night, free air freezing level 13,000 ft. Monday, 13,000 ft. rising to 14,000 ft. Monday night, then 14,000 ft. Tuesday and Tuesday night.
  • lows 48-42 highs 75-70 warming to 72 Tuesday.
  • Sunny and a bit cooler Wednesday, clear Wednesday night,
  • Sunny and a bit warmer Thursday, clear at night,
  • Sunny and a bit warmer Friday and Saturday, clear Friday night,
  • free air freezing level 13,000 ft. Wednesday, 14,000 ft, Wednesday night and Thursday, 15,000 ft. Thursday night, then 16,000 ft. Friday through Saturday.
  • highs 70-83 lows 42-48.