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March 6, 2024

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 FREEZE WARNING IS IN EFFECT FROM MIDNIGHT TONIGHT UNTIL 9 AM THURSDAY FOR THE SOUTH CENTRAL OREGON COAST.
  • A FREEZE WARNING IS IN EFFECT FROM MIDNIGHT TONIGHT UNTIL 9 AM THURSDAY FOR THE CURRY COUNTY COAST.

HEALTH ADVISORIES

  • 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) is keeping most of the Pacific Northwest dry.  The graphics for days 1-3  show a frontal system moving eastward through Northern California. The graphics for days 3-7    Saturday through Wednesday show increasing frontal activity through the period.

NOTE: Daylight Saving Time officially begins at 2 AM this Sunday March 10th. Don’t forget to SPRING AHEAD” at bedtime Saturday night by setting your clocks ahead by one hour. The authorities recommend that everyone check home Smoke Detectors, CO Detectors, and RADON Detectors to make sure they are in working order. Depending on the type you have and how old they are you can replace bad batteries or replace the whole Detector.

Forecast For The South Willamette Valley Including Eugene-Springfield:

  • Partly cloudy with patchy frost tonight,
  • Patchy AM frost, mostly sunny and slightly warmer Thursday afternoon, partly cloudy Thursday night,
  • Partly cloudy and a bit warmer Friday, mostly cloudy with a (40%) chance of rain late at night (under 0.10 in. of rain possible),
  • Mostly cloudy and a bit cooler with rain and a slight (20%) chance of thunderstorms Saturday, then showers likely (70%) with a slight (20%) chance of thunderstorms Saturday night.
  • lows 28-40 highs 50-58 cooling to 52 Saturday.
  • Mostly cloudy and a bit cooler with rain Sunday, rain Sunday night,
  • Mostly cloudy with rain and a bit warmer Monday and a night,
  • Mostly cloudy with rain Tuesday and Tuesday night,
  • Then mostly cloudy and a bit warmer with a good (50%) chance of rain Wednesday.
  • highs 50-54 lows 40-44 cooling back to 40 Tuesday night. (seasonal averages high 55 low 36)

Forecast for the Umpqua Valley including Roseburg:

  • Partly cloudy with patchy freezing fog late tonight,
  • Patchy dense AM fog and freezing fog, sunny and a bit warmer Thursday afternoon, mostly clear in the evening, partly cloudy with patchy fog late Thursday night,
  • Some AM clouds with patchy freezing fog, sunny and a bit warmer Friday afternoon, becoming mostly cloudy with a (40%) chance of rain at night (under 0.10 in. of rain possible, snow level 3,500 ft. late Friday night),
  • Mostly cloudy and a bit cooler with rain and a slight (20%) chance of thunderstorms and breezy Saturday, then mostly cloudy with rain and snow likely (70%) Saturday night.
  • lows 27-42 highs 50-59 cooling to 53 Saturday.
  • Mostly cloudy with AM rain and snow, rain and breezy and a bit warmer Sunday afternoon, rain Sunday night,
  • Mostly cloudy with rain Monday, rain at night,
  • Mostly cloudy with rain Tuesday and in the evening, a good (50%) chance of rain late Tuesday night,
  • Then mostly cloudy with a (30%) chance of rain Wednesday.
  • highs 52-56 lows 42-45 cooling back to 42 Tuesday night. (seasonal average high 58 low 39)

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

  • Partly cloudy with patchy early evening coastal frost becoming widespread coastal frost late tonight while patchy early evening inland frost becoming widespread frost with patchy inland fog late tonight,
  • Widespread AM frost, sunny and a bit warmer Thursday afternoon, mostly clear with patchy evening coastal frost with areas of coastal frost late Thursday night while areas of inland evening frost with widespread inland frost late Thursday night,
  • Partly cloudy with areas of AM coastal frost while inland AM widespread frost, partly cloudy and a bit warmer Friday afternoon, evening coastal rain likely (70%) while a good (50%) chance of evening inland rain, mostly cloudy with rain late Friday night  (0.25 in. of rain possible) and breezy (Wind: S 15-25 mph),
  • Mostly cloudy with rain and and a slight (20%) chance of thunderstorms and windy and a bit cooler Saturday, then rain likely (70%) and breezy Saturday night.
  • lows 32-42 highs 54-58 cooling to 53 Saturday.
  • Mostly cloudy with rain and windy and a bit warmer Sunday, rain and windy Sunday night,
  • Mostly cloudy with rain and windy Monday and at night,
  • Mostly cloudy with rain and windy Tuesday, evening rain likely (70%), a good (50%) chance of rain late Tuesday night,
  • Then mostly cloudy with a (30%) chance of rain Wednesday.
  • highs 53-56 lows 42-45 cooling back to 42 Tuesday night. (seasonal average high 55 low 41)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Partly cloudy with patchy frost late tonight,
  • Mostly sunny and a bit warmer Thursday, mostly clear Thursday night,
  • Partly cloudy and a bit warmer Friday, partly cloudy in the evening, mostly cloudy with a slight (20%) chance of rain and snow late at night with a (40%) chance of snow very late at night,
  • Mostly cloudy and a bit cooler with snow and rain and blustery Saturday, then a good (50%) chance of snow and rain Saturday night.
  • free air freezing level at the surface tonight, at the surface rising to 4,000 ft. Thursday afternoon, 4,000 ft. Thursday night, free air freezing level 8,0005,000 ft. rising to 9,000 ft. Friday afternoon, snow level 5,000 ft. falling to 4,000 ft. late Friday night, 3,500 ft. Saturday, then 3,000 ft. Saturday night.
  • lows 12-27 cooling to 25 Saturday night highs 35-44 cooling back to 35 Saturday.
  • Mostly cloudy with snow and rain Sunday and Sunday night,
  • Mostly cloudy with snow and rain Monday and at night,
  • Mostly cloudy with rain and snow (snow possibly heavy at times) Tuesday, snow and rain likely (70%) Tuesday night,
  • Then a mix of clouds and sun and a bit warmer with a good (50%) chance of snow and rain Wednesday.
  • snow level  4,000 ft. Sunday, 3,500 ft. Sunday night, 4,000 ft. Monday, 4,500 ft. Monday night, 4,000 ft. Tuesday, then 3,500 ft. Tuesday night and Wednesday.
  • highs 35-38 lows 27-30 cooling to 26 Tuesday night.