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June 27, 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

  • THE OREGON HEALTH AUTHORITY HAS ISSUED A PUBLIC HEALTH ADVISORY FOR UNSAFE LEVELS OF FECAL BACTERIA IN OCEAN WATERS AT OCEANSIDE BEACH IN TILLAMOOK COUNTY. PEOPLE SHOULD AVOID DIRECT CONTACT WITH THE WATER IN THIS AREA UNTIL THE ADVISORY IS LIFTED. UNSAFE LEVELS OF FECAL BACTERIA CAN CAUSE DIARRHEA, STOMACH CRAMPS, SKIN RASHES, UPPER RESPIRATORY INFECTIONS, AND OTHER ILLNESSES. CHILDREN, ELDERLY, AND THOSE WITH A COMPROMISED IMMUNE SYSTEM SHOULD USE EXTRA CAUTION AS THEY ARE MORE VULNERABLE TO TO ILLNESSES FROM WATERBORNE BACTERIA. VISITORS SHOULD AVOID WADING IN AREA CREEKS, POOLS OF WATER ON THE BEACH, OR IN DISCOLORED WATER, AND STAY CLEAR OF WATER RUNOFF FLOWING INTO THE OCEAN. LEVELS OF FECAL BACTERIA TEND TO BE HIGHER IN THESE TYPES OF WATER SOURCES.
  • 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

  • Upper Level High Pressure (“Arch” shape) to our Northwest and Low pressure over us will keep things the same. The graphics for days 1-3  show no frontal systems approaching the Pacific Northwest. The graphics for days 3-7  Friday through Tuesday show a frontal system moving into the Pacific Northwest Friday through next Sunday.

Forecast For The South Willamette Valley Including Eugene-Springfield:

  • Mostly clear tonight,
  • Some AM clouds, sunny and slightly warmer Wednesday afternoon, mostly clear Wednesday night,
  • Sunny and a bit warmer Thursday, clear Thursday night,
  • Sunny and a bit cooler Friday, then clear Friday night.
  • lows 52-54 cooling to 52 Friday night highs 85-88.
  • Sunny and a bit warmer Saturday, clear Saturday night,
  • Sunny and a bit warmer Sunday and Monday, clear both nights,
  • Then sunny Tuesday (Independence Day).
  • highs 88-92 lows near 54.  (seasonal averages high 78 low 50)

Forecast for the Umpqua Valley including Roseburg:

  • Mostly clear this evening, partly cloudy with patchy fog late tonight,
  • AM clouds, sunny and slightly warmer Wednesday afternoon, mostly clear with patchy fog late Wednesday night,
  • Sunny and a bit warmer Thursday, clear with patchy fog late at night,
  • Sunny and a bit cooler Friday, clear Friday night.
  • low 55-58 highs 86-92 cooling to 90 Friday.
  • Sunny and a bit warmer Saturday, Sunday and Monday, clear each night,
  • Then sunny and a bit cooler Tuesday (Independence Day).
  • highs 92-95 cooling to 90 Tuesday lows near 58. (seasonal averages high 81 low 55)

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

  • Partly cloudy this evening, mostly cloudy with patchy evening and late night coastal fog and drizzle late tonight while inland patchy fog late tonight,
  • AM clouds with patchy fog, sunny and a bit warmer Wednesday afternoon, partly cloudy in the evening, mostly cloudy late with patchy fog late Wednesday night,
  • Some AM clouds with patchy AM coastal fog, sunny and a bit warmer Thursday afternoon, mostly clear in the evening, partly cloudy with patchy fog late at night,
  • AM clouds with patchy fog, sunny and a bit cooler Friday afternoon, then mostly clear Friday night.
  • lows 54-50 highs 70-72 cooling back to 70 Friday.
  • Sunny and a bit warmer Saturday, mostly clear Saturday night,
  • Sunny Sunday and Monday, mostly clear both nights,
  • Then mostly sunny and a bit cooler Tuesday (Independence Day).
  •  highs 72-68 lows 50-52. (seasonal averages high 65 low 52)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Mostly clear tonight,
  • Mostly sunny and a bit warmer Wednesday, mostly clear Wednesday night,
  • Then sunny and a bit warmer Thursday and Friday, clear both nights,
  • free air freezing level 12,000 ft. tonight and Wednesday, 13,000 ft. rising to 14,000 ft. late Wednesday night, 14,000 ft. rising to 15,000 ft. Thursday afternoon, then 15,000 ft. Thursday night through Friday night.
  • lows 43-49 highs, 72-80.
  • Sunny and a bit warmer Saturday, clear Saturday night,
  • Sunny and a bit warmer Sunday, mostly clear at night,
  • Then sunny Monday and Tuesday (Independence Day), clear Monday night.
  • free air freezing level 15,000 ft. Saturday, 16,000 ft. Saturday night, then 15,000 ft. Sunday through Tuesday.
  • highs near 82 lows 49-52.