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Tim Chuey Weather

by | Apr 16, 2023 | Weather

April 16, 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 FLOOD ADVISORY IS IN EFFECT DUE TO SNOW MELT UNTIL 3 PM MONDAY FOR HARNEY COUNTY.

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) is moving and will push frontal systems our way. The graphics for days 1-3 show the cold front that moved through the Pacific Northwest today and the next one behind it. The graphics for days 3-7  Wednesday through next Sunday show the continuing series of complex frontal systems that will slide into the Pacific Northwest through the period.

Forecast For The South Willamette Valley Including Eugene-Springfield:

  • Mostly cloudy with a good (50%) chance of evening showers with a slight (20%) chance of thunderstorms, a slight (20%) chance of showers late tonight (under 0.10 in. of rain possible, more in storms),
  • Mostly cloudy with AM rain, showers and cooler with a slight (20%) chance of isolated thunderstorms Monday afternoon and evening (0.25 in. of rain possible, small hail possible), showers likely (70%) late Monday night (0.10 in. of rain possible, small hail possible),
  • Mostly cloudy with AM showers likely (70%), showers with a slight (20%) chance of thunderstorms and a bit warmer Tuesday afternoon and evening (0.10 in. of rain possible), showers likely (70%) late at night (under 0.10 in. of rain possible),
  • Mostly cloudy and a bit cooler with showers and a slight (20%) chance of thunderstorms Wednesday afternoon, then showers likely (70%) Wednesday night.
  • lows 38-35 warming to 36 Tuesday night and Wednesday night highs 50-52 cooling to 49 Monday.
  • Mostly cloudy and a bit warmer with showers likely (70%) Thursday, a good (50%) chance of evening showers, partly cloudy with a slight (20%) chance of showers late Thursday night,
  • A mix of clouds and sun with a slight (20%) chance of showers and a bit warmer Friday afternoon, mostly cloudy with a slight (20%) chance of evening showers, partly cloudy with a slight (20%) chance of showers late at night,
  • A mix of clouds and sun with a (40%) chance of showers and a bit warmer Saturday, mostly cloudy with a good (50%) chance of showers Saturday night,
  • Then mostly cloudy with a good (50%) chance of showers and a bit cooler Sunday.
  • highs 52-63 cooling to 60 Sunday lows 38-45. (seasonal averages high 61 low 40)

Forecast for the Umpqua Valley including Roseburg:

  • Mostly cloudy with a (30%) chance evening showers and a slight (20%) chance of thunderstorms, a (30%) chance of rain and snow showers late tonight (under 0.10 in. of rain possible, snow level 2,500 ft. falling to 2,000 ft. late tonight),
  • Mostly cloudy with AM rain and snow showers, showers with a slight (20%) chance of thunderstorms and a bit cooler Monday afternoon (0.10 in. of rain possible), evening rain showers and snow showers with a slight (20%) chance of thunderstorms then showers and snow showers likely (70%) with a slight (20%) chance of thunderstorms late Monday night (under 0.10 in. of rain possible, 1 in. of snow possible, snow level 2,000 ft. falling to 1,000 ft.),
  • Mostly cloudy with AM showers, snow showers likely (70%) and a slight (20%) chance of thunderstorms, rain showers and snow showers with a slight (20%) chance of thunderstorms Tuesday afternoon and evening (under 0.10 in. of rain possible, snow level 1,000 ft. rising to 2,000 ft. in the afternoon), rain showers and snow showers with a slight (20%) chance of thunderstorms late at night (under 0.10 in. of rain possible),
  • Mostly cloudy and a bit cooler with rain showers and snow showers with a slight (20%) chance of thunderstorms Wednesday, evening rain and snow showers likely (70%), then a good (50%) chance of rain and snow showers late Wednesday night.
  • lows 40-36 warming to 38 Wednesday night highs 52-50.
  • Mostly cloudy with AM rain and snow showers likely (70%), a bit warmer with a good (50%) chance of showers Thursday afternoon, a (40%) chance of showers Thursday night,
  • Mostly cloudy with a slight (20%) chance of AM showers, mostly cloudy and a bit warmer Friday afternoon, just mostly cloudy at night,
  • Mostly cloudy and a bit warmer with a slight (20%) chance of showers Saturday, mostly cloudy with a slight (20%) chance of showers Saturday night,
  • Then mostly cloudy and a bit cooler with a (30%) chance of showers Sunday.
  • highs 55-68 cooling to 62 Sunday lows 42-47. (seasonal averages high 63 low 43)

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

  • Mostly cloudy with a slight (20%) chance of coastal showers late tonight while a slight (20%) chance of evening inland showers and thunderstorms with a slight (20%) chance of inland snow showers late tonight (under 0.10 in. of rain possible, snow level 2,000 ft.),
  • Mostly cloudy with coastal showers and a slight (20%) chance of thunderstorms Monday while inland AM showers and a slight (20%) chance of afternoon thunderstorms (0.25 in. of rain possible, snow level 2,000 ft.), evening showers with a slight (20%) chance of thunderstorms and coastal showers likely (70%) with a slight (20%) chance of thunderstorms late Monday night while inland evening showers and snow showers with a (30%) chance of thunderstorms late Monday night (0.25 in. of rain possible, snow level 1,500 ft. falling to 1,000 ft.),
  • Mostly cloudy with coastal showers and a bit cooler with a slight (20%) chance of thunderstorms Tuesday while AM inland showers, snow showers and a slight (20%) chance of thunderstorms with inland showers and a bit warmer with a slight (20%) chance of thunderstorms Tuesday afternoon (0.10 in. of rain possible, snow level 2,000 ft.), coastal showers with a slight (20%) chance of thunderstorms Tuesday night while inland evening showers and a slight (20%) chance of thunderstorms with inland showers, snow showers and a slight (20%) chance of thunderstorms late at night (0.10 in. of rain possible),
  • Mostly cloudy with AM showers and a slight (20%) chance of thunderstorms, showers likely (70%) with a slight (20%) chance of thunderstorms and a bit warmer Wednesday afternoon, then a good (50%) chance of rain Wednesday night.
  • lows 38-35 warming back to 38 Tuesday night and Wednesday night highs 52-50 warming back to 52 Tuesday.
  • Mostly cloudy and a bit warmer with a good (50%) chance of showers Thursday, a (30%) chance of showers Thursday night,
  • Mostly cloudy with a slight (20%) chance of AM showers, mostly cloudy and a bit warmer Friday afternoon, just mostly cloudy at night,
  • Mostly cloudy and a bit warmer with a slight (20%) chance of showers Saturday, a (30%) chance of showers Saturday night,
  • Then mostly cloudy and a bit cooler with a (30%) chance of showers Sunday.
  • highs 58-62 cooling to 57 Sunday lows 40-43. (seasonal averages high 57 low 44)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Mostly cloudy with evening snow and rain showers, a good (50%) chance of snow showers late tonight (0.25 in. of rain possible, 2 in. of snow possible),
  • Mostly cloudy with AM snow, snow and rain showers and cooler Monday afternoon (0.25 in. of rain possible, 1-3 in. of snow possible), snow showers Monday night (1-4 in. of snow possible),
  • Mostly cloudy with snow showers and a bit cooler Tuesday (light snow accumulation expected), snow showers Tuesday night (light snow accumulation expected),
  • Mostly cloudy and a bit cooler with snow showers Wednesday, then snow showers Wednesday night.
  • snow level 2,000 ft. tonight, 2,000 ft. rising to 3,000 ft. Monday afternoon, at the surface Monday night, 2,500 ft. Tuesday afternoon, 2,000 ft. Tuesday night, then 2,500 ft. Wednesday night.
  • lows 25-22 warming to 24 Thursday night highs 35-32.
  • Mostly cloudy with AM snow showers likely (70%), rain showers and snow showers and a bit warmer Thursday afternoon, a good (50%) chance of evening rain and snow showers, partly cloudy with a good (50%) chance of rain and snow showers late Thursday night,
  • Clouds and sun with a (30%) chance of AM rain and snow showers, a mix of clouds and sun with a slight (20%) chance of rain and snow showers and a bit warmer Friday afternoon, partly cloudy with a slight (20%) chance of  showers at night,
  • Clouds and sun with a slight (20%) chance of AM rain and snow showers, a good (50%) chance of showers showers and a bit warmer Saturday afternoon, a good (50%) chance of showers Saturday night,
  • Then mostly cloudy and a bit cooler with a good (50%) chance of showers Sunday.
  • snow level 3,000 ft. Thursday, 4,000 ft. Thursday night, 4,500 ft. Friday, 5,500 ft. Friday night, 6,000 ft. Saturday and Saturday night, then 5,500 ft. Sunday.
  • highs 33-45 lows  23-29.