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Tim Chuey Weather

by | Jul 18, 2023 | Weather

July 18, 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 7 PM THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE WILLAMETTE VALLEY.
  • A RED FLAG WARNING IS IN EFFECT FROM 1 PM UNTIL 9 PM WEDNESDAY FOR THE WESTERN SISKIYOU NATIONAL FOREST.
  • A FIRE WEATHER WATCH IS IN EFFECT FROM THURSDAY AFTERNOON THROUGH THURSDAY EVENING FOR THE WESTERN SISKIYOU NATIONAL FOREST.
  • AN AIR QUALITY ALERT IS IN EFFECT UNTIL 11 PM WEDNESDAY FOR CURRY COUNTY AND  JOSEPHINE COUNTY.

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) will continue the onshore airflow through the Pacific Northwest, then slow warming will take place. The graphics for days 1-3  show a weak disturbance (dashed line) moved through Monday helping to increase onshore airflow and cooling. The graphics for days 3-7   Friday through Tuesday show a cold front pushing through Oregon between Friday and next Saturday.

Forecast For The South Willamette Valley Including Eugene-Springfield:

  • Clear tonight,
  • Sunny and a bit warmer Wednesday, mostly clear Wednesday night,
  • Mostly sunny and a bit cooler Thursday, clear at night,
  • Sunny and a bit warmer Friday, then clear Friday night.
  • lows near 54 highs 92-89 warming to 90 Friday.
  • Sunny and a bit cooler Saturday, clear Saturday night,
  • Mostly sunny and a bit cooler Sunday and Monday, mostly both nights,
  • Then mostly sunny and a bit warmer Tuesday.
  • highs 88-84 warming to 86 Tuesday lows near 53.  (seasonal averages high 85 low 52)

Forecast for the Umpqua Valley including Roseburg:

  • Clear with haze late tonight,
  • Sunny and hazy and a bit warmer Wednesday, clear and hazy late Wednesday night,
  • Sunny Thursday, clear at night,
  • Sunny Friday, clear Friday night.
  • lows near 58 highs near 92.
  • Sunny and a bit cooler Saturday, clear Saturday night,
  • Mostly sunny and a bit cooler Sunday and Monday, mostly clear both nights,
  • Then sunny and a bit warmer Tuesday.
  • highs 92-88 warming to 90 Tuesday lows 59-56 (seasonal averages high 87 low 58)

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

  • Clear this evening at the shore and mostly cloudy late tonight while clear inland this evening and mostly cloudy and hazy inland late tonight,
  • AM clouds with inland haze, sunny and a bit warmer Wednesday afternoon, partly cloudy with evening inland haze, mostly cloudy late Wednesday night,
  • AM clouds, sunny Thursday afternoon, partly cloudy in the evening, mostly cloudy late at night,
  • Some AM clouds, sunny Friday afternoon, then partly cloudy Friday night.
  • lows near 55 highs near 72.
  • Partly cloudy and a bit warmer Saturday, partly cloudy Saturday night,
  • Sunny Sunday, partly cloudy at night,
  • Mostly sunny Monday, mostly clear Monday night,
  • Then sunny Tuesday.
  •  highs near 74 lows 57-54. (seasonal averages high 66 low 54)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Clear tonight,
  • Sunny and a bit warmer Wednesday, clear Wednesday night,
  • Sunny and a bit cooler Thursday, then mostly clear at night,
  • Sunny and a bit warmer Friday, then mostly clear Friday night.
  • free air freezing level 16,000 ft. tonight through Thursday, then 16,000 ft. Thursday night through Friday night.
  • lows 52-47 highs 83-80 warming to 82 Friday.
  • Sunny and a bit cooler Saturday, clear Saturday night,
  • Sunny and a bit cooler Sunday and Monday, mostly clear both nights,
  • Then sunny Tuesday.
  • free air freezing level 16,000 ft. Saturday though Sunday night, 15,000 ft. Monday, then 14,000 ft. Monday night and Tuesday.
  • highs 79-74 lows 46-44.