March 17, 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 FROST ADVISORY IS IN EFFECT FROM 2 AM UNTIL 9 AM TODAY FOR THE SOUTH CENTRAL OREGON COAST.
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 over the Pacific Northwest giving us dry with warmer daytime highs. The graphics for days 1-3 show no frontal activity through the period. The graphics for days 3-7 show an increase in complex frontal systems moving our way Monday through next Friday bringing back the rain chances.
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Forecast for the South Willamette Valley including Eugene-Springfield:
- Mostly sunny with patchy AM frost, partly cloudy and a bit warmer this afternoon (St.Patrick’s Day), becoming mostly cloudy tonight,
- Patchy AM frost, a mix of clouds and sun and a bit warmer Saturday afternoon, a slight (20%) chance of evening rain, a good (50%) chance of rain late Saturday night,
- Mostly cloudy with a good (50%) chance of AM rain, rain and cooler Sunday afternoon, evening rain likely (70%), a good (50%) chance of rain Sunday night.
- highs 60-64 cooling to 54 Sunday lows 34-43.
- Mostly cloudy and a bit cooler with rain likely (70%) Monday, a good (50%) chance of rain Monday night,
- A mix of clouds and sun with a good (50%) chance of rain and a bit cooler Tuesday, mostly cloudy with a good (50%) chance of rain at night,
- Mostly cloudy with a good (50%) chance of AM rain, rain likely (70%) Wednesday afternoon, a good (50%) chance of rain Wednesday night,
- Mostly cloudy with a good (50%) chance of AM rain, then rain likely (70%) and a bit warmer Thursday afternoon.
- highs 52-50 warming to 52 Thursday lows near 36. (seasonal averages high 57 low 37)
Forecast for the Umpqua Valley including Roseburg:
- Partly cloudy with areas of AM fog, partly cloudy and a bit warmer this afternoon (St.Patrick’s Day), mostly cloudy tonight,
- Patchy AM fog, mostly cloudy and a bit warmer Saturday, a (40%) chance of showers at night,
- Mostly cloudy and a bit cooler with showers likely (70%) Sunday, then showers likely (70%) and cooler Sunday night.
- highs 63-65 cooling to 56 Sunday lows 40-45 cooling to 43 Monday night.
- Mostly cloudy and cooler with showers likely (70%) Monday, a good (50%) chance of evening showers, a (%) chance of rain and snow showers Monday night,
- Mostly cloudy and a bit cooler with rain and snow showers likely (70%) Tuesday, rain and snow showers Tuesday night,
- Mostly cloudy and a bit cooler with rain and snow showers likely (70%) Wednesday, a (40%) chance of rain and snow showers Wednesday night,
- Mostly cloudy with a good (50%) chance of AM rain and snow showers, then showers likely (70%) Thursday afternoon.
- highs 54-52 warming back to 54 Thursday lows near 37. (seasonal averages high 59 low 40)
Forecast for the Oregon Coast including Coos Bay and North Bend:
- Sunny with areas of AM patchy frost coastal fog and frost while inland areas of AM frost, becoming mostly cloudy this afternoon (St. Patrick’s Day), just mostly cloudy tonight,
- Mostly cloudy with patchy AM coastal fog and frost and a slight (20%) chance of coastal showers and a bit warmer Saturday afternoon while mostly cloudy with areas of AM inland frost and patchy fog, a slight (20%) chance of inland showers and a bit warmer Saturday afternoon, a good (50%) chance of showers at night,
- Mostly cloudy and a bit cooler with showers Sunday, then showers likely (70%) Sunday night.
- highs 55-57 cooling to 54 Sunday lows 37-42 cooling to 40 Sunday night.
- Mostly cloudy and a bit cooler with showers likely (70%) Monday, a (40%) chance of showers Monday night,
- Mostly cloudy with showers likely (70%) and a bit cooler Tuesday, showers likely (70%) Tuesday night,
- Mostly cloudy with showers likely (70%) Wednesday, a good (50%) chance of showers Wednesday night,
- Mostly cloudy with a good (50%) chance of AM showers, then mostly cloudy and a bit warmer with showers likely (70%) Thursday afternoon.
- highs 52-50 warming back to 52 Thursday lows near 36. (seasonal averages high 55 low 42)
Forecast for the Northern Oregon Cascades including Willamette Pass:
- Mostly sunny and a bit warmer today (St. Patrick’s Day), mostly cloudy tonight,
- Partly cloudy Saturday, mostly cloudy with a slight (20%) chance of evening rain and snow, a good (50%) chance of rain and snow Saturday night,
- Mostly cloudy and a bit cooler with rain and snow Sunday, then rain and snow Sunday night.
- free air freezing level 5,000 ft. rising to 6,500 ft. this afternoon, 7,000 ft. tonight, snow level 6,500 ft. rising to 7,000 ft. Saturday afternoon, snow level 5,000 ft. Saturday night, 5,000 ft. Sunday, then 4,500 ft. Sunday night,
- highs 44-47 cooling to 39 Sunday lows 25-30 cooling to 28 Sunday night.
- Mostly cloudy a bit cooler with snow and rain Monday, evening snow and rain likely (70%), a good (50%) chance of snow and rain late Monday night,
- Mostly cloudy with a good (50%) chance of AM rain and snow, snow and rain likely (70%) Tuesday afternoon and evening, a good (50%) chance of snow late at night,
- Mostly cloudy with snow and a bit cooler Wednesday, evening snow and rain likely (70%), a good (50%) chance of snow late Wednesday night,
- Mostly cloudy with a good (50%) chance of AM snow, then snow and rain likely (70%) Thursday afternoon.
- snow level 3,500 ft. Monday and Monday night, then 2,500 ft. Tuesday through Thursday.
- highs 37-32 warming to 35 Thursday lows 23-20.
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- For all of your Eugene-Springfield and Lane County News, Weather, and Sports go to: EugeneDailyNews.com
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10/31 Showers with patchy fog overnight.
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- 11/1 Cold front drops temperatures & brings more rain/possible t’storms today.
- 10/31 Showers with patchy fog overnight.
- 10/31 Rain for Halloween today. Dress “Trick-Or-Treaters”for wet weather today and this evening.
- 10/30 A slight chance of evening rain changing to a 50% chance late tonight.
- 10/30 AM fog, a slight chance of rain today for your Sunday.
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- For all of your Eugene-Springfield and Lane County News, Weather, and Sports go to: EugeneDailyNews.com
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Mostly clear again tonight, then sunshine and slightly cooler for your Friday.
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- 7/15 Plenty of sunshine heading our way today to end the workweek.
- Mostly clear again tonight, then sunshine and slightly cooler for your Friday.
- 7/14 Sunshine and a bit warmer for your Thursday.
- Clear overnight, sunny and pleasant tomorrow for your Thursday.
- 7/13 A break from the heat today for your “Hump Day.”
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Forecast for the Oregon Coast including Coos Bay and North Bend:
- Becoming mostly cloudy late tonight,
- Some AM clouds, sunny and a bit warmer Friday afternoon, clear in the evening, partly cloudy late Friday night,
- Mostly cloudy start, partly cloudy and slightly cooler Saturday afternoon, mostly clear at night,
- Mostly sunny Sunday, then mostly clear Sunday night.
- lows 54-56 cooling back to 54 Sunday night highs 70-69.
- Mostly sunny and a bit warmer Monday, mostly clear Monday night,
- Partly cloudy and slightly cooler Tuesday, partly cloudy at night,
- Then partly cloudy Wednesday through Thursday.
- highs 73-72 lows 54-56 cooling back to 54 Wednesday night. (Seasonal Averages high 66 low 54)
Forecast for the Northern Oregon Cascades including Willamette Pass:
- Mostly clear tonight,
- Mostly sunny and a bit cooler Friday, clear Friday night,
- Sunny and a bit warmer Saturday, mostly clear at night,
- Some AM clouds, mostly sunny and a bit cooler Sunday, then clear Sunday night.
- free air freezing level 15,000 ft. falling to 14,000 ft. late tonight, 14,000 ft. rising to 15,000 ft. Friday afternoon, 15,000 ft. Friday night through Sunday, then 16,000 ft. Sunday night.
- lows 49-47 highs 74-72 warming back to 74 Sunday.
- Sunny and a bit warmer Monday, clear Monday night,
- Sunny Tuesday, mostly clear at night,
- Then mostly sunny and a bit cooler Wednesday and Thursday, mostly clear Wednesday night.
- free air freezing level 16,000 ft. Monday through Thursday.
- highs 80-75 lows 53-50.