March 8, 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 WINTER WEATHER ADVISORY IS IN EFFECT FROM 4 AM SATURDAY UNTIL 5 AM MONDAY ABOVE 4,500 FT. FOR THE CASCADES OF MARION AND LINN COUNTIES.
- A WINTER WEATHER ADVISORY IS IN EFFECT FROM 4 AM UNTIL 4 PM SATURDAY FOR THE SOUTH CENTRAL OREGON CASCADES.
- *A WIND ADVISORY IS IN EFFECT FROM 7 AM UNTIL 7 PM SATURDAY FOR NORTHERN AND EASTERN KLAMATH COUNTY AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY, INCLUDING THE HIGH TERRAIN IN KLAMATH AND LAKE COUNTIES.
- A HIGH WIND WATCH IS IN EFFECT FROM SATURDAY EVENING THROUGH SUNDAY MORNING FOR THE HEADLANDS AND EXPOSED AREAS ON HIGHWAY 101 FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
- A HIGH WIND WARNING IS IN EFFECT FROM 7 PM TODAY UNTIL 10 AM SATURDAY FOR THE FOOTHILLS OF THE NORTHERN BLUE MOUNTAINS OF OREGON.
- A FLOOD WATCH IS IN EFFECT THROUGH THURSDAY AFTERNOON FOR THE COQUILLE RIVER AT COQUILLE AFFECTING THE SOUTH CENTRAL OREGON 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 the Pacific Northwest dry. The graphics for days 1-3 show a frontal system approaching the coast Saturday then moving in by Sunday. The graphics for days 3-7 Monday through Friday 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 this evening, mostly cloudy with showers late tonight (under 0.10 in. of rain possible),
- Mostly cloudy with AM showers, a good (50%) chance of showers and cooler Saturday afternoon (0.25 in. of rain possible), a good (50%) chance of evening showers, showers late Saturday night (0.25 in. of rain possible) and breezy (Wind: S 10-15 mph increasing to S 20-25 mph late at night),
- Mostly cloudy and a bit cooler with showers Sunday (0.25 in. of rain possible) and in the evening, rain late at night (0.10 in. of rain possible),
- Mostly cloudy with rain and a bit warmer Monday, then rain Monday night.
- lows 39-43 highs 52-50 warming back to 52 Monday.
- Mostly cloudy with showers and a slight (20%) chance of thunderstorms Tuesday, showers likely (70%) Tuesday night,
- Mostly cloudy and a bit warmer with a (40%) chance of showers Wednesday, just partly cloudy at night,
- Then partly cloudy and a bit warmer Thursday and Friday, partly cloudy Thursday night,
- highs 52-65 lows 39-35 warming to 37 Thursday night. (seasonal averages high 56 low 37)
Forecast for the Umpqua Valley including Roseburg:
- Partly cloudy with evening, mostly cloudy with a slight (20%) chance of late evening rain, rain late tonight (under 0.10 in. of rain possible, snow level 3,500 ft.),
- Mostly cloudy with AM rain likely (70%), cooler with a good (50%) chance of showers Saturday afternoon (0.10 in. of rain possible, snow level 3,000 ft. falling to 2,500 ft. in the afternoon), mostly cloudy with a good (50%) chance of evening rain and snow showers, rain and snow late Saturday night (under 0.10 in. of rain possible, snow possibly heavy at times),
- Mostly cloudy with AM rain and snow with a slight (20%) chance of thunderstorms, rain with a slight (20%) chance of thunderstorms Sunday afternoon (0.50 in. of rain possible), evening rain, rain and snow late at night (under 0.10 in. of rain possible),
- Mostly cloudy with AM rain and snow, rain Monday afternoon, then rain Monday night.
- lows near 42 highs near 52.
- Mostly cloudy with rain Tuesday, a good (50%) chance of evening rain, a good (50%) chance of rain and snow late Tuesday night,
- Mostly cloudy with a slight (20%) chance of AM rain, just mostly cloudy and a bit warmer Wednesday afternoon, just partly cloudy at night,
- Then mostly sunny and a bit warmer Thursday and Friday, mostly clear Thursday night,
- highs 52-68 lows 42-37 warming to 39 Thursday night. (seasonal average high 58 low 39)
Forecast for the Oregon Coast including Coos Bay and North Bend:
- Mostly cloudy with a slight (20%) chance of late evening showers, showers late tonight (0.10 in. of rain possible),
- Mostly cloudy with a (30%) chance of AM rain, slightly cooler with a good (50%) chance of showers Saturday afternoon (0.25 in. of rain possible) and breezy (Coastal Wind: SW 15-25 mph while Inland Wind: SW 15-25 mph decreasing to SW 10-15 mph in the afternoon), cloudy with evening coastal showers while a good (50%) chance of inland evening showers, rain late Saturday night (0.25 in. of rain possible) and breezy (Coastal Wind: S 10-20 mph increasing to S 20-30 mph gusts to 40 mph) while (Inland Wind: S 20-30 mph),
- Mostly cloudy with showers and a slight (20%) chance of thunderstorms Sunday (1.00 in. of rain possible), coastal rain with a slight (20%) chance of thunderstorms at night while inland rain at night (0.25 in. of rain possible),
- Mostly cloudy with rain and breezy Monday, then rain and breezy Monday night.
- lows 44-42 warming back to 44 Monday night highs near 53.
- Mostly cloudy with AM rain, rain likely (70%) and a bit warmer Tuesday afternoon, a (30%) chance of rain Tuesday night,
- Mostly cloudy with a slight (20%) chance of AM rain, just partly cloudy and a bit warmer Wednesday afternoon and evening, mostly clear at night,
- Then sunny and warmer Thursday and Friday, partly cloudy Thursday night,
- highs 54-69 lows 42-39 warming to 43 Thursday night. (seasonal average high 55 low 42)
Forecast for the Northern Oregon Cascades including Willamette Pass:
- Partly cloudy this evening, mostly cloudy with a good (50%) chance of showers late tonight (under 0.10 in. of rain possible),
- Mostly cloudy with AM snow and rain showers, a good (50%) chance of snow and rain showers and cooler Saturday afternoon (0.25 in. of rain possible, 1-4 in. of snow possible), a good (50%) chance of snow and rain showers Saturday night (0.10 in. of rain possible, 1 in. of snow possible) and windy (Pass Wind: S 15-20 mph gusts to 40 mph increasing S 25-35 mph gusts to 50 mph late at night)
- Mostly cloudy and a bit cooler with rain showers and snow showers Sunday (afternoon snow possibly heavy at times), evening snow and rain showers, snow and rain late at night,
- Mostly cloudy with snow and rain Monday, then rain and snow showers Monday night (snow possibly heavy at times).
- snow level 4,500 ft. tonight, 3,000 ft. Saturday and Saturday night, 3,500 ft. Sunday, 3,000 ft. Sunday night, 3,500 ft. Monday, then 4,500 ft. Monday night.
- lows 27-32 highs near 35.
- Mostly cloudy with rain and snow showers (snow possibly heavy at times) Tuesday, snow showers likely (70%) with rain showers Tuesday night,
- A mix of clouds and sun and a bit warmer with a good (50%) chance of snow showers and a slight (20%) chance of showers Wednesday, just partly cloudy at night,
- Mostly sunny start, partly cloudy and a bit warmer Thursday afternoon and Friday afternoon, partly cloudy Thursday night.
- snow level 3,500 ft. Tuesday, 3,000 ft. Tuesday night and Wednesday, free air freezing level 4,500 ft. Wednesday night, 8,000 ft. Thursday and Thursday night, then 11,000 ft. Friday.
- highs 34-48 lows 25-30.