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Tim Chuey Weather

by | May 11, 2023 | Weather

May 11, 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

  • AN EXCESSIVE HEAT WATCH IS IN EFFECT FROM SATURDAY AFTERNOON THROUGH MONDAY EVENING FOR THE NORTH OREGON COAST, THE CENTRAL OREGON COAST, THE COAST RANGE OF NORTHWESTERN OREGON, THE CENTRAL COAST RANGE OF WESTERN OREGON, THE LOWER COLUMBIA, THE GREATER PORTLAND METRO AREA, THE CENTRAL WILLAMETTE VALLEY, THE SOUTH WILLAMETTE VALLEY, THE NORTHERN OREGON CASCADE FOOTHILLS, THE CASCADE FOOTHILLS IN LANE COUNTY, THE UPPER HOOD RIVER VALLEY, THE WESTERN COLUMBIA RIVER GORGE, AND THE CENTRAL COLUMBIA RIVER GORGE.
  • A HEAT ADVISORY IS IN EFFECT FROM NOON SATURDAY UNTIL 11 PM SUNDAY FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
  • A HEAT ADVISORY IS IN EFFECT FROM NOON SATURDAY UNTIL 11 PM SUNDAY FOR THE CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY AND JOSEPHINE COUNTY, THE EASTERN DOUGLAS COUNTY FOOTHILLS,  JACKSON COUNTY, THE SISKIYOU MOUNTAINS, AND THE SOUTHERN OREGON CASCADES..
  • A FLOOD WARNING IS IN EFFECT FOR THE SILVIES RIVER NEAR BURNS AFFECTING HARNEY  COUNTY UNTIL   THIS MORNING DUE TO RAIN AND SNOW MELT.

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

An Upper Level High Pressure Ridge (“Arch” shape) takes 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  Sunday through next Thursday show a quiet weather pattern with a complex frontal system lingering offshore through the period.

Forecast For The South Willamette Valley Including Eugene-Springfield:

  • Mostly clear tonight,
  • Mostly sunny and a bit warmer Friday, mostly clear Friday night,
  • Sunny and a bit warmer Saturday, clear at night,
  • Sunny and a bit warmer, Hot, Sunday, then clear Sunday night.
  •  lows 47-58 highs 83-93.
  • Mostly sunny and a bit cooler Monday with a slight (20%) chance of afternoon sprinkles, mostly clear with a slight (20%) chance of evening showers and thunderstorms Monday night,
  • Mostly sunny and a bit cooler Tuesday and Wednesday, mostly clear both nights,
  • Some AM clouds, then mostly sunny Thursday afternoon.
  • highs 93-82 lows 55-53 warming back to 55 Wednesday night. (seasonal averages high 67 low 43)

Forecast for the Umpqua Valley including Roseburg:

  • Mostly clear this evening, partly cloudy with patchy fog late tonight,
  • Some AM clouds, sunny and warmer Friday, mostly clear Friday night,
  • Sunny and a bit warmer Saturday, clear at night,
  • Sunny and a bit warmer Sunday, then clear Sunday night.
  • lows 50-62 highs 85-97.
  • Mostly sunny and a bit cooler Monday, Tuesday, and Wednesday, mostly clear each night,
  • Some AM clouds, then sunny and a bit cooler Thursday afternoon.
  • highs 92-82 lows 58-56. (seasonal averages high 70 low 47)

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

  • Partly cloudy tonight with patchy inland fog late,
  • Some AM clouds, sunny and a bit warmer Friday, mostly clear Friday night,
  • Sunny and warmer Saturday, clear at night,
  • Sunny and warmer Sunday, then clear Sunday night.
  • lows 46-56 cooling to 54 Sunday night highs 66-87.
  • Mostly sunny and a bit cooler Monday, mostly clear and a bit cooler Monday night,
  • Partly cloudy and a bit cooler Tuesday, partly cloudy night,
  • Then partly cloudy Wednesday through Thursday
  • highs 70-66 lows near 50. (seasonal averages high 60 low 47)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Partly cloudy with a slight (20%) chance of evening showers, just partly cloudy late tonight,
  • Mostly sunny and a bit warmer Friday, mostly clear Friday night,
  • Sunny and a bit warmer Saturday, clear at night,
  • Mostly sunny Sunday with a slight (20%) chance of afternoon sprinkles, partly cloudy with a slight (20%) chance of evening showers, then just partly cloudy late Sunday night.
  • snow level above 8,000 ft. tonight, 11,000 ft. Friday, 12,000 ft. rising to 13,000 ft. late Friday night, 13,000 ft. rising to 14,000 ft. Saturday afternoon, 14,000 ft. Saturday night, then snow level above 8,000 ft. Sunday and Sunday night.
  • lows 40-47 highs 64-72.
  • Mostly sunny with a (40%) chance of AM sprinkles, a mix of clouds and sun with a (40%) chance of showers and a slight (20%) chance of thunderstorms Monday afternoon, partly cloudy with a (40%) chance of evening showers and a slight (20%) chance of thunderstorms,  just partly cloudy late Monday night,
  • Mostly sunny and a bit warmer with a slight (20%) chance of sprinkles Tuesday afternoon, a slight (20%) chance of evening sprinkles, mostly clear late at night,
  • Mostly sunny with a slight (20%) chance of sprinkles Wednesday afternoon, a slight (20%) chance of evening sprinkles, just mostly clear late Wednesday night,
  • Mostly cloudy with a slight (20%) chance of showers Thursday afternoon.
  • snow level above 8,000 ft. Monday through Thursday afternoon.
  • highs near 72 lows near 45.