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Tim Chuey Weather

by | Apr 15, 2023 | Weather

April 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 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 will move through the Pacific Northwest Sunday and the next one behind it Monday. The graphics for days 3-7  Tuesday 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 tonight,
  • Mostly cloudy, some sun peeks, with AM rain, showers and a bit warmer Sunday with a slight (20%) chance of afternoon thunderstorms (0.25 in. of rain possible, more in storms), evening showers likely (70%) with a slight (20%) chance of thunderstorms, a (20%) chance of showers late Sunday night (under 0.10 in. of rain possible, more in storms),
  • Mostly cloudy with AM rain, showers and cooler with a slight (20%) chance of thunderstorms Monday afternoon and evening (0.25 in. of rain possible), then showers likely (70%) late Monday night (0.10 in. of rain possible),
  • Then mostly cloudy with showers Tuesday and Tuesday night,
  • lows 42-36 warming to 38 Monday night highs 53-50.
  • Mostly cloudy with showers a Wednesday, evening showers likely (70%), a good (50%) chance of showers late at night,
  • Mostly cloudy and a bit warmer with showers likely (70%) Thursday, a (30%) chance of evening showers, a slight (20%) chance of showers late at night,
  • Mostly cloudy with a (30%) chance of AM showers, just mostly cloudy and a bit warmer Friday afternoon, mostly cloudy w ith a slight (20%) chance of evening showers, partly cloudy with a slight (20%) chance of showers Friday night,
  • Clouds and sun with a slight (20%) chance of AM showers, then a (40%) chance of showers and a bit warmer Saturday afternoon.
  • highs 50-60 lows 37-42. (seasonal averages high 61 low 40)

Forecast for the Umpqua Valley including Roseburg:

  • Mostly cloudy tonight,
  • Mostly cloudy with AM rain, showers with a slight (20%) chance of thunderstorms and a bit cooler Sunday afternoon (0.10 in. of rain possible, snow level 3,500 ft.falling to 3,000 ft.), a good (50%) chance evening showers, snow showers and a slight (20%) chance of thunderstorms,  a good (50%) chance of rain and snow showers late Sunday night (under 0.10 in. of rain possible, snow level 2,500 ft. falling to 2,000 ft. late at night),
  • Mostly cloudy with AM rain and snow showers likely (70%), showers with a slight (20%) chance of thunderstorms and a bit cooler Monday afternoon, evening rain and snow showers, then showers and snow showers likely (70%) with a slight (20%) chance of thunderstorms late Monday night,
  • Mostly cloudy with AM showers, snow showers and a slight (20%) chance of thunderstorms Tuesday afternoon, evening rain and snow showers, then rain and snow showers likely (70%) late Tuesday night.
  • lows 43-37 highs 55-52.
  • Mostly cloudy with AM rain and snow showers, showers and snow showers likely (70%) likely with a slight (20%) chance of thunderstorms Wednesday afternoon, a (40%) chance of rain and snow showers Wednesday night,
  • Mostly cloudy and a bit warmer with a (40%) chance of rain and snow showers Thursday, a (30%) chance of showers Thursday night with widespread frost late,
  • Mostly cloudy with a slight (20%) chance of showers and a bit warmer Friday, a slight (20%) chance of showers Friday night,
  • Mostly cloudy and a bit warmer with a slight (20%) chance of showers Saturday.
  • highs 52-62 lows 38-43. (seasonal averages high 63 low 42)

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

  • Cloudy tonight,
  • Mostly cloudy with AM rain, coastal showers likely (70%) with a slight (20%) chance of thunderstorms and a bit warmer Sunday afternoon while inland showers and a slight (20%) chance of thunderstorms Sunday afternoon (under 0.10 in. of rain possible), a slight (20%) chance of evening coastal showers and thunderstorms while a (30%) chance of inland showers and a slight (20%) chance of  a good (50%) chance of showers late Sunday night (under 0.10 in. of rain possible, snow level 2,000 ft.),
  • Mostly cloudy with AM showers, showers and a bit cooler Monday with a slight (20%) chance of afternoon thunderstorms (0.10 in. of rain possible), evening showers with a slight (20%) chance of thunderstorms, coastal showers likely (70%) with a slight (20%) chance of thunderstorms late at night while inland showers and snow showers likely (70%) with a slight (20%) chance of thunderstorms late Monday night (0.25 in. of rain possible),
  • Mostly cloudy with AM showers, snow showers, showers land a slight (20%) chance of thunderstorms, showers and a bit warmer with a slight (20%) chance of thunderstorms Tuesday afternoon, evening showers, rain and snow showers likely (70%) late Tuesday night.
  • lows 44-36 highs 54-50 warming to 52 Tuesday.
  • Mostly cloudy with AM rain and snow showers likely (70%), a good (50%) chance of showers Wednesday afternoon, a (40%) chance of showers Wednesday night,
  • Mostly cloudy and a bit warmer with a (50%) chance of showers Thursday and at night,
  • Mostly cloudy with a slight (20%) chance of showers and a bit warmer Friday , a slight (20%) chance of showers Friday night,
  • Then mostly cloudy with a slight (20%) chance of showers Saturday.
  • highs 53-27 lows 38-42. (seasonal averages high 57 low 44)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Mostly cloudy tonight,
  • Mostly cloudy with a good (50%) chance of AM rain and snow, rain and snow showers and a bit cooler with a slight (20%) chance of thunderstorms Sunday afternoon, snow and rain showers Sunday night (0.25 in. of rain possible, 2 in. of snow possible),
  • Mostly cloudy with AM snow, snow and rain showers and cooler Monday afternoon and breezy (Pass Wind: S 10-15 mph gusts to 30 mph increasing and shifting to SW 20-25 mph gusts to 40 mph in the afternoon), snow showers Monday night (moderate accumulation expected),
  • Mostly cloudy with snow snow showers and a bit cooler Tuesday, then snow showers Tuesday night,
  • free air freezing level 7,500 ft. falling to 7000 ft. late tonight, snow level 4,500 ft. Sunday, 2,500 ft. Sunday night and Monday, 1,500 ft. Monday night, then 2,000 ft. Tuesday and Tuesday night.
  • lows 32-22 highs 43-33.
  • Mostly cloudy with snow showers Wednesday, evening snow showers likely (70%), a good (50%) chance of snow showers late Wednesday night,
  • Mostly cloudy with AM snow showers likely (70%), rain and snow showers and a bit warmer Thursday afternoon, a good (50%) chance of rain and snow showers at night,
  • A mix of clouds and sun with a (30%) chance of rain and snow showers and a bit warmer Friday, partly cloudy with a slight (20%) chance of rain and snow showers Friday night,
  • Mostly cloudy with a (40%) chance of AM snow showers, then a mix of clouds and sun and a bit warmer with a (40%) chance of showers Saturday afternoon.
  • snow level 2,000 ft. Wednesday, 2,5009 ft. Wednesday night, 3,000 ft. Thursday, 4,000 ft. Thursday night, 4,500 ft. Friday, 5,000 ft. Friday night, then 5,500 ft. Saturday.
  • highs 33-45 lows  23-29.