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March 6, 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 WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 10 AM TODAY FOR THE FOOTHILLS OF THE SOUTHERN BLUE MOUNTAINS OF OREGON.
  • A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 10 AM TODAY FOR THE  CURRY COUNTY COAST, EASTERN CURRY COUNTY AND JOSEPHINE 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

The Jet Stream is sending a strong stream of moisture through the Pacific Northwest. The graphics for days 1-3 show no major frontal systems headed toward Oregon.  The graphics for days 3-7 show more complex frontal activity moving our way Thursday through next Monday giving us chances of getting wet.

Forecast for the South Willamette Valley including Eugene-Springfield:

  • Mostly cloudy with AM showers likely (70%) and scattered snow showers, showers and a bit warmer with a slight (20%) chance of thunderstorms (small hail possible) this afternoon (0.10 in. 0f rain possible, little or no snow accumulation expected, snow level 1,000 ft.),  evening showers likely (70%) with a slight (20%) chance of thunderstorms with small hail possible, a good (50%) chance of rain and snow showers late tonight (under 0.10 in. of rain possible, no snow accumulation expected, snow level 1,000 ft. late tonight),
  • Mostly cloudy with  AM showers likely (70%)  and a (30%) chance of snow showers (under 0.10 in. of rain possible, snow level 500 ft., little or no snow accumulation expected), showers likely (70%) Tuesday afternoon, evening showers likely (70%) with a (30%) chance of snow showers, a slight (20%) chance of rain showers and snow showers late Tuesday night (under 0.10 in. of rain possible, snow level 500 ft.),
  • Mostly cloudy with AM rain likely (70%) with a (40%) chance of snow showers, showers likely (70%) Wednesday afternoon (snow level 1,000 ft.), then a good (50%) chance of rain showers and a good (50%) chance of snow showers late Wednesday night (snow level 1,500 ft.).
  • highs near 47 lows 30-33.
  • Mostly cloudy with a good (50%) chance of AM rain and snow, rain likely (70%) and slightly cooler Thursday afternoon (snow level 1,500 ft.), rain Thursday night,
  • Mostly cloudy with rain likely (70%) and a bit warmer Friday and at night,
  • Mostly cloudy with rain likely (70%) Saturday and Saturday night,
  • Then mostly cloudy and a bit warmer with rain likely (70%) Sunday.
  • highs 46-53 lows 32-39. (seasonal averages high 55 low 36)

Forecast for the Umpqua Valley including Roseburg:

  • Mostly cloudy with rain and snow showers likely (70%) today (under 0.10 in. of rain possible, snow level 900 ft. rising to 2,000 ft. this afternoon), rain and snow showers likely (70%) tonight (under 0.10 in. of rain possible, 1 in. of snow possible, snow level 1,500 ft. falling to 700 ft. late tonight),
  • Mostly cloudy and a bit cooler with rain and snow showers Tuesday (under 0.10 in. of rain possible, snow level 600 ft. rising to 1,500 ft.), evening rain and snow showers likely (70%), a good (50%) chance of rain and snow showers late Tuesday night (under 0.10 in. of rain  possible, snow level 800 ft.),
  • Mostly cloudy with a good (50%) chance of AM rain and snow showers, a bit warmer with rain and snow showers likely (70%) Wednesday afternoon, then a (40%) chance of rain and snow showers Wednesday night.
  • highs 47-45 warming back to 47 Wednesday lows 32-35.
  • Mostly cloudy with a (40%) chance of AM rain and snow showers, rain and snow showers and a bit warmer Thursday afternoon, rain Thursday night,
  • Mostly cloudy with AM rain, rain likely (70%), a bit warmer with rain likely (70%) Friday afternoon, rain likely (70%) Friday night,
  • Then mostly cloudy with rain likely (70%) Saturday through Sunday.
  • highs 48-52 lows 37-40. (seasonal averages high 58 low 39)

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

  • Mostly cloudy and a bit warmer coastal showers and a slight (20%) chance of thunderstorms today while inland AM rain and snow  showers with inland showers and a bit warmer this afternoon (0.25 in. of rain possible, snow level 1,500 ft. rising to 2,000 ft. this afternoon), coastal showers with a slight (20%) chance of thunderstorms tonight while inland rain and snow showers tonight (0.10 in. of rain possible, snow level 1,500 ft. falling to 900 ft. late tonight),
  • Mostly cloudy with coastal showers and a slight (20%) chance of thunderstorms and a bit cooler Tuesday while inland rain and snow showers Tuesday (0.25 in. of rain possible, snow level 1,000 ft. rising to 1,500 ft. in the afternoon),  coastal showers likely (70%) at night while a good (50%) chance of inland rain and snow showers likely (70%) at night (0.10 in. iof rain possible, snow level 900 ft.),
  • Mostly cloudy with rain and snow showers likely (70%) and a bit warmer Wednesday, evening rain and snow showers likely (70%), then a (30%) chance of rain and snow showers late Wednesday night.
  • highs 48-46 warming back to 48 Wednesday lows 34-32 warming back to 34 Wednesday night.
  • Mostly cloudy with AM rain and snow showers likely (70%), rain and slightly warmer Thursday afternoon, rain Thursday night,
  • Mostly cloudy and a bit warmer with rain Friday, rain likely (70%) at night,
  • Then mostly cloudy with rain likely (70%) Saturday through Sunday.
  • highs 49-52 lows 36-39. (seasonal averages high 55 low 41)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Mostly cloudy with showers and a bit warmer today (2 in. of snow  possible), evening snow showers, a good (50%) chance of snow showers late tonight (1 in. of snow possible),
  • Mostly cloudy with snow showers and a bit warmer Tuesday (light snow accumulation) and in the evening, a good (50%) chance of snow showers late at night,
  • Mostly cloudy with snow showers and a bit cooler Wednesday, then a good (50%) chance of snow showers Wednesday night.
  • snow level at the surface tonight, 2,000 ft. Monday afternoon, at the surface late Monday night, 2,000 ft. Tuesday, then at the surface Tuesday night through Wednesday night,
  • highs 28-30 cooling back to 28 Wednesday lows 15-17.
  • Mostly cloudy with a good (50%) chance of AM snow, snow likely (70%) and a bit warmer Thursday afterno0n, snow Thursday night,
  • Mostly cloudy and a bit warmer with snow and rain Friday, evening snow and rain likely (70%), rain and snow late at night,
  • Mostly cloudy with rain and snow Saturday afternoon, snow and rain likely (70%) Saturday night,
  • Then mostly cloudy with rain and snow likely (70%) Sunday.
  • snow level 1,500 ft., 2,500 ft. Thursday night, 4,000 ft. Friday, then 4,500 ft. Friday night through Sunday.
  • highs 33-38 lows 22-30.

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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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_____

  • 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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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.