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Tim Chuey Weather

by | May 14, 2023 | Weather

May 15, 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 HEAT ADVISORY IS IN EFFECT UNTIL 8 PM TODAY FOR THE LOWER COLUMBIA AND THE GREATER PORTLAND METRO AREA.

HEALTH ADVISORIES

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

A blocking  Upper Level High Pressure Ridge (“Arch” shape) sitting over us has taken over bringing a heat wave.The graphics for days 1-3  show system, show no frontal systems approaching the Pacific Northwest. The graphics for days 3-7  Thursday through next Monday show a quiet weather pattern with a complex frontal system lingering offshore Thursday and then pushing through Oregon next Friday and Saturday.

Note: Sunday was a hot one. Record high 94 for Eugene and 95 for North Bend

Forecast For The South Willamette Valley Including Eugene-Springfield:

  • Partly cloudy and a bit cooler with a slight (20%) chance of showers and a slight (20%) chance of thunderstorms this afternoon and evening, just partly cloudy late tonight,
  • Mostly sunny and a bit cooler Tuesday, clear at night,
  • Mostly sunny and a bit warmer Wednesday, then mostly clear Wednesday night.
  • highs 87-84 warming to 86 Wednesday lows near 54.
  • Mostly sunny and a bit cooler Thursday, mostly clear Thursday night,
  • Some AM clouds, mostly sunny and a bit cooler Friday afternoon, mostly clear at night,
  • Partly cloudy Saturday, mostly clear Saturday night,
  • Some AM clouds, then sunny and a bit cooler Sunday.
  • highs 82-79 lows 54-52. (seasonal averages high 68 low 44)

Forecast for the Umpqua Valley including Roseburg:

  • Partly cloudy with a slight (20%) chance of AM thunderstorms, mostly cloudy with a slight (20%) chance of thunderstorms and cooler this afternoon, partly cloudy with a slight (20%) chance of evening thunderstorms,  just mostly clear late tonight,
  • Patchy AM fog, sunny Tuesday, mostly clear Tuesday night,
  • Partly cloudy and a bit warmer Wednesday, then mostly clear Wednesday night,
  • highs 87-89 lows 58-56 warming back to 58 Wednesday night.
  • Mostly sunny and a bit cooler Thursday, mostly clear Thursday night,
  • Some AM clouds, sunny and a bit cooler Friday, mostly clear in the evening, partly cloudy late at night,
  • Then partly cloudy Saturday through Sunday.
  • highs near 82 lows near 56. (seasonal averages high 71 low 48)

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

  • Partly cloudy with patchy AM coastal fog , partly cloudy and much cooler this afternoon with a slight (20%) chance of inland thunderstorms, mostly clear this evening, partly cloudy with patchy coastal fog late tonight,
  • AM clouds with patchy fog, sunny Tuesday afternoon, mostly clear in the evening, mostly cloudy  late at night,
  • Partly cloudy and a bit warmer Wednesday, then partly cloudy Wednesday night.
  • highs 67-69 lows near 50.
  • Partly cloudy and a bit cooler Thursday, partly cloudy Thursday night,
  • Partly cloudy and a bit warmer Friday and at night,
  • Then partly cloudy and a bit cooler Saturday through Sunday.
  • highs 65-67 cooling back to 65 Sunday lows 50-52 cooling back to 50 Saturday night. (seasonal averages high 61 low 48)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Partly cloudy with a good (50%) chance of AM showers and a slight (20%) chance of thunderstorms, showers likely (70%) and a bit cooler this afternoon (0.25 in. of rain possible), a slight (20%) chance of evening showers and thunderstorms (0.10 in. of rain possible, more in storms),  just partly cloudy late tonight,
  • Mostly sunny start, partly cloudy and a bit warmer with a slight (20%) chance of showers and thunderstorms Tuesday afternoon, mostly clear Tuesday night,
  • Mostly sunny and a bit warmer Wednesday, then mostly clear Wednesday night.
  • snow level above 8,000 ft. today, free air freezing level 12,000 ft. tonight and Wednesday, then 13,000 ft. Wednesday night.
  • highs 69-73 lows 44-46.
  • Mostly sunny and a bit warmer with a slight chance of showers Thursday afternoon, partly cloudy with a slight (20%) chance of evening showers, just partly cloudy Thursday night,
  • Mostly sunny start, partly cloudy with a slight (20%) chance of showers Friday afternoon, partly cloudy with a slight (20%) chance of evening showers, just partly cloudy late at night,
  • Partly cloudy and a bit cooler with a slight (20%) chance of showers Saturday afternoon and evening, just partly cloudy late Saturday night,
  • Some AM clouds, mostly sunny and a bit cooler with a slight (20%) chance of showers Sunday afternoon.
  • snow level above 8,000 ft. Thursday and Thursday night, then snow level above 8,000 ft. Friday through Sunday.
  • highs 75-72 lows near 47.