March 5, 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 WEDNESDAY FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
- A FREEZE WARNING IS IN EFFECT FROM MIDNIGHT WEDNESDAY NIGHT UNTIL 9 AM THURSDAY FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
- A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 10 AM WEDNESDAY FOR THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY.
- A WINTER STORM WARNING IS IN EFFECT UNTIL 10 PM TONIGHT FOR HARNEY COUNTY.
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 Friday through Tuesday 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 widespread frost tonight,
- Widespread AM and late night frost, partly cloudy and a bit cooler Wednesday afternoon, partly cloudy Wednesday night,
- Some AM clouds with widespread frost, mostly sunny and a bit warmer Thursday afternoon, partly cloudy with widespread frost at night,
- AM clouds and sun with widespread frost, a mix of clouds and sun and a bit warmer Friday afternoon, partly cloudy with a good (50%) chance of evening rain, then mostly cloudy with a good (50%) chance of rain late Friday night.
- lows 27-38 highs 46-57.
- Mostly cloudy and a bit cooler with rain Saturday, a good (50%) chance of Saturday night,
- Mostly cloudy and a bit warmer with rain likely (70%) Sunday, rain at night,
- Then mostly cloudy with rain Monday through Tuesday.
- highs near 53 lows 40-43. (seasonal averages high 55 low 36)
Forecast for the Umpqua Valley including Roseburg:
- Partly cloudy with a slight (20%) chance of early evening rain and snow, just mostly cloudy tonight,
- AM clouds, sunny and a bit cooler Wednesday afternoon, partly cloudy Wednesday night,
- Sunny and a bit warmer Thursday, mostly clear in the evening, partly cloudy late at night,
- Partly cloudy and a bit warmer with a slight (20%) chance of rain Friday afternoon, mostly cloudy with a slight (20%) chance of evening rain, rain late Friday night.
- lows 26-38 highs 46-57.
- Mostly cloudy and a bit cooler with rain Saturday, a good (50%) chance of rain and snow Saturday night,
- Mostly cloudy with a good (50%) chance of AM rain and snow, rain and a bit warmer Sunday afternoon, rain at night,
- Then mostly cloudy with rain Monday through Tuesday.
- highs 52-54 lows 40-43. (seasonal average high 58 low 39)
Forecast for the Oregon Coast including Coos Bay and North Bend:
- Mostly clear with patchy evening frost, partly cloudy with areas of frost late tonight,
- Some AM clouds with patchy frost, sunny Wednesday afternoon, partly cloudy with patchy evening frost, mostly clear with areas of frost late Wednesday night,
- Patchy AM frost, sunny and a bit warmer Thursday afternoon, mostly clear in the evening, partly cloudy late at night,
- Partly cloudy and a bit warmer with a slight (20%) chance of rain Friday afternoon, mostly cloudy with a slight (20%) chance of evening rain, then rain likely (70%) late Friday night.
- lows 32-42 highs 49-57.
- Mostly cloudy with rain and breezy and a bit cooler Saturday, rain likely (70%) Saturday night,
- Mostly cloudy with rain and windy and a bit warmer Sunday, rain and breezy at night,
- Mostly cloudy with rain and breezy Monday and Monday night,
- Then mostly cloudy with rain and breezy Tuesday.
- highs near 54 lows near 43. (seasonal average high 55 low 41)
Forecast for the Northern Oregon Cascades including Willamette Pass:
- Partly cloudy tonight,
- Partly cloudy and a bit cooler Wednesday, partly cloudy Wednesday night,
- Mostly sunny and a bit warmer Thursday, mostly clear at night,
- Partly cloudy and a bit warmer Friday, partly cloudy with a (40%) chance of evening rain and snow, then mostly cloudy with a (40%) chance of rain and snow late Friday night.
- snow level at the surface tonight, free air freezing level at the surface tonight through Wednesday night, at the surface rising to 3,500 ft. Thursday afternoon, night, 8,000 ft. Friday, then snow level 4,500 ft. Friday night.
- lows 15-12 warming to 25 Friday night highs 33-43.
- Mostly cloudy and a bit cooler with snow and rain Saturday, a (30%) chance of snow with rain likely (70%) Saturday night,
- Mostly cloudy and a bit warmer with snow and rain likely (70%) Sunday, rain and snow at night,
- Mostly cloudy and a bit cooler with snow and rain Monday and Monday night,
- Then mostly cloudy and a bit cooler with snow and rain Tuesday.
- snow level 3,500 ft. Saturday, 3,000 ft. Saturday night, 3,500 ft. Sunday, 4,000 ft. Sunday night and Monday, then 4,000 ft. Tuesday.
- highs 35-37 cooling back to 35 Tuesday night lows 25-30.