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November 28, 2022

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 STORM WATCH IS IN EFFECT FROM TUESDAY AFTERNOON THROUGH WEDNESDAY MORNING FOR THE UPPER HOOD RIVER VALLEY.
  • A WINTER STORM WATCH IS IN EFFECT FROM LATE TUESDAY NIGHT THROUGH THURSDAY MORNING FOR THE NORTHERN OREGON CASCADES.
  • A WINTER STORM WATCH IS IN EFFECT FROM WEDNESDAY MORNING THROUGH THURSDAY AFTERNOON FOR THE CASCADES IN LANE COUNTY.
  • A WINTER STORM WATCH IS IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH THURSDAY EVENING FOR THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN LAKE COUNTY.
  • A WINTER STORM WATCH IS IN EFFECT FROM WEDNESDAY MORNING THROUGH THURSDAY AFTERNOON FOR THE SOUTH CENTRAL OREGON CASCADES, THE SISKIYOU MOUNTAINS, AND THE SOUTHERN OREGON CASCADES.
  • A WINTER STORM WATCH IS IN EFFECT FROM WEDNESDAY MORNING THROUGH THURSDAY AFTERNOON ABOVE 3,000 FT. FOR THE EASTERN DOUGLAS COUNTY FOOTHILLS.
  • A WINTER STORM WATCH IS IN EFFECT FROM WEDNESDAY MORNING THROUGH THROUGH THURSDAY AFTERNOON ABOVE 3,000 FT. FOR EASTERN CURRY COUNTY AND JOSEPHINE COUNTY.

HEALTH ADVISORIES

  • A RECREATIONAL HEALTH ADVISORY IS IN EFFECT FOR WILLOW CREEK RESERVOIR IN MORROW COUNTY DUE THE PRESENCE OF A CYANOBACTERIA (BLUE-GREEN ALGAE) BLOOM AND CYANOTOXINS ABOVE RECREATIONAL USE VALUES FOR HUMAN EXPOSURE. PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED WATER ACTIVITIES, SUCH AS WATER SKIING OR POWER BOATING, IN AREAS OF THE LAKE WHERE BLOOMS ARE, AS THE MAJOR RISK OF EXPOSURE IS FROM INGESTING WATER. THESE TOXINS ARE NOT ABSORBED THROUGH THE SKIN. HOWEVER, IF YOU HAVE SKIN SENSITIVITIES  YOU MAY GET A PUFFY RED RASH. IT CAN BE HARMFUL TO PETS AND PEOPLE IF ACCIDENTAL INGESTION OCCURS. SPECIAL CARE SHOULD BE TAKEN WITH CHILDREN, ESPECIALLY THE YOUNGER ONES, WHEN THEY ARE NEAR THE WATER.
  • A RECREATIONAL HEALTH ADVISORY IS IN EFFECT FOR ALL OF UPPER KLAMATH LAKE IN KLAMATH COUNTY INCLUDING SHOALWATER BAY DUE THE PRESENCE OF A CYANOBACTERIA (BLUE-GREEN ALGAE) BLOOM AND CYANOTOXINS ABOVE RECREATIONAL USE VALUES FOR HUMAN EXPOSURE. PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED WATER ACTIVITIES, SUCH AS WATER SKIING OR POWER BOATING, IN AREAS OF THE LAKE WHERE BLOOMS ARE, AS THE MAJOR RISK OF EXPOSURE IS FROM INGESTING WATER. THESE TOXINS ARE NOT ABSORBED THROUGH THE SKIN. HOWEVER, IF YOU HAVE SKIN SENSITIVITIES  YOU MAY GET A PUFFY RED RASH. IT CAN BE HARMFUL TO PETS AND PEOPLE IF ACCIDENTAL INGESTION OCCURS. SPECIAL CARE SHOULD BE TAKEN WITH CHILDREN, ESPECIALLY THE YOUNGER ONES, WHEN THEY ARE NEAR THE WATER.
  • 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 Low Pressure Trough (“U” shape) brings in northwest airflow. The graphics for days 1-3 show the cold frontal system that moved through the Pacific Northwest. The graphics for days 3-7  Thursday through Monday show the complex frontal systems that will move in through the period.

Forecast for the South Willamette Valley including Eugene-Springfield:

  • Partly cloudy with a good (50%) chance of evening, just mostly cloudy late tonight, patchy fog late (0.10 in. of rain possible, no snow accumulation expected, snow level 1,000 ft.),
  • Cloudy with a good (50%) chance of AM rain, rain and a bit cooler Tuesday afternoon (under 0.10 in. of rain possible, snow level 1,500 ft.), rain and breezy (Wind:  S 15-25 mph gusts to 40 mph) Tuesday night (0.50 in. of rain possible),
  • Mostly cloudy with AM rain (heavy at times), rain and a bit warmer Wednesday afternoon, rain at night,
  • Mostly cloudy with rain and a bit cooler Thursday, then rain Thursday night.
  • lows 30-36 cooling to 32 Thursday night highs 43-48 cooling to 42 Thursday.
  • Mostly cloudy and a bit warmer with rain Friday, rain Friday night,
  • Mostly cloudy with rain Saturday, a good (50%) chance rain at night,
  • Mostly cloudy with a (30%) chance of AM rain, a slight (20%) chance of rain Sunday afternoon, a slight (20%) chance of rain Sunday night,
  • Then mostly cloudy with a (30%) chance of rain Monday.
  • highs near 45 lows 34-25. (Seasonal Averages high 49 low 36)

Forecast for the Umpqua Valley including Roseburg:

  • Mostly cloudy with a (30%) chance of rain and snow showers tonight with patchy fog late (under 0.10 in. of rain possible, snow level 1,500 ft.),
  • Mostly cloudy with patchy dense AM fog and a slight (20%) chance of rain and snow showers, a (30%) chance of rain and snow showers and a bit cooler Tuesday afternoon (afternoon snow level 2,000 ft.), cloudy with rain and snow  likely (70%) Tuesday night (snow level 2,000 ft. rising to 2,500 ft. late at night),
  • Mostly cloudy with rain and a bit warmer Wednesday (snow level 3,000 ft.), rain and snow Wednesday night (evening snow possibly heavy at times, snow level 2,500 ft. falling to 1,500 ft.),
  • Mostly cloudy and a bit cooler with rain and snow Thursday and in the evening, rain and snow showers Thursday night.
  • lows 34-37 cooling to 32 Thursday night highs 43-46.
  • Mostly cloudy and a bit warmer with rain and snow Friday, evening rain and snow likely (70%), rain and snow late Friday night,
  • Mostly cloudy with AM rain and snow, patchy fog with rain and snow likely (70%) Saturday afternoon, a good (50%) chance of evening rain and snow, a good (50%) chance of rain and snow showers late at night,
  • Mostly cloudy with patchy fog and a (30%) chance of snow showers Sunday, a slight (20%) chance of evening showers, slight (20%) chance of rain and snow showers with patchy fog late Sunday night,
  • Patchy AM fog, then mostly cloudy with a slight (20%) chance of rain and snow showers Monday afternoon.
  • highs near 44 lows 37-32. (Seasonal Averages high 50 low 39).

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

  • Mostly cloudy with a (40%) chance of coastal showers tonight while a (40%) chance of inland evening snow showers with late evening inland rain and snow showers with patchy dense fog and a good (50%) chance of inland showers late tonight (under 0.10 in. of rain possible, snow level 2,000 ft.),
  • Mostly cloudy with a slight (20%) chance of AM showers, rain likely (70%) and a bit warmer Tuesday afternoon (under 0.10 in. of rain possible),  coastal rain at night while evening inland rain likely (70%) and rain latte Tuesday night (under 0.10 in. of rain possible), breezy (Wind: S 15-25 mph decreasing to 10-20 mph late at night)
  • Mostly cloudy and a bit warmer with rain Wednesday, evening coastal rain with a slight (20%) chance of thunderstorms and coastal showers with a slight (20%) chance of thunderstorms late at night while inland evening rain with inland rain and snow late at night,
  • Mostly cloudy with AM rain and  snow, rain and a bit cooler Thursday afternoon, evening rain and snow, then rain and snow showers likely (70%) late Thursday night.
  • lows 35-40  cooling to 36 Thursday night highs 53-55 cooling to 52 Thursday.
  • Mostly cloudy with AM rain and snow showers likely (70%), showers and a bit warmer Friday afternoon, rain Friday night,
  • Mostly cloudy with AM rain, rain likely (70%) Saturday afternoon and evening, patchy fog with showers at night,
  • Patchy AM fog, mostly cloudy with a (30%) chance of showers Sunday, patchy fog with a slight (20%) chance of showers Sunday night,
  • Patchy AM fog, then mostly cloudy with a slight (20%) chance of showers Monday.
  • highs 54-53 lows 38-35. (Seasonal Averages high 54 low 42)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Mostly cloudy with evening snow showers likely (70%), a slight (20%) chance of snow showers late tonight (1-2 in. of snow possible),
  • Mostly cloudy with a slight (20%) chance of AM snow, snow likely (70%) and a bit cooler Tuesday afternoon (1 in. of snow possible), snow likely (70%) Tuesday night with rain becoming likely (70%) also late Tuesday night,
  • Mostly cloudy with rain and snow and a bit warmer Wednesday (and breezy (Wind: SW 15-25 mph AM gusts to 40 mph, rain and snow Wednesday night (snow possibly heavy at times),
  • Mostly cloudy and a bit cooler with snow Thursday, then snow likely (70%) Thursday night.
  • snow level at the surface tonight, 2,000 ft. Tuesday afternoon, 2,500 ft. Tuesday night, 3,000 ft. rising to 3,500 ft. Wednesday afternoon, 2,500 ft. Wednesday night, 2,000 ft. Thursday, then at the surface Thursday night.
  • lows 15-23 cooling to 18 Thursday night highs 26-32 cooling back to 26 Thursday.
  • Mostly cloudy and a bit warmer with a good (50%) chance of snow Friday,  snow likely (70%) Friday night,
  • Mostly cloudy and a bit warmer with snow likely (70%) Saturday with rain and snow likely (70%) in the afternoon, a good (50%) chance of snow Saturday night,
  • Mostly cloudy with a slight (20%) chance of snow Sunday, a slight (20%) chance of snow at night,
  • Then a mix of clouds and sun with a slight (20%) chance of snow Monday.
  • snow level 1,500 ft. Friday, 2,000 ft. Friday night, 3,000 ft. Saturday, then 2,000 ft. Saturday night through Monday.
  • highs 27-30 lows 22-15.
  • 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 actual weather will conform to the projected forecast.

_____

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

  • Mostly cloudy with rain tonight (0.75 in. of rain possible),
  • Mostly cloudy  with coastal showers and a slight (20%) chance of thunderstorms Tuesday while inland AM showers with inland showers and a slight (20%) chance of thunderstorms Tuesday afternoon (0.25 in. of rain possible), showers with a slight (20%) chance of thunderstorms Tuesday night (0.25 in. of rain possible),
  • Mostly cloudy with AM showers and a slight (20%) chance of thunderstorms, showers likely (70%) and a bit warmer Wednesday afternoon (0.25 in. of rain possible), a (30%) chance of evening showers, mostly cloudy with patchy inland fog late at night (under 0.10 in. of rain possible),
  • Mostly cloudy start, partly cloudy and a bit warmer Thursday afternoon, then cloudy with a (40%) chance of rain Thursday night.
  • lows 47-40 warming to 46 Thursday night highs 56-59.
  • Cloudy with a good (50%) chance of AM rain, rain likely (70%) and a bit warmer Friday afternoon, rain Friday night,
  • Mostly cloudy with rain likely (70%) and a bit cooler Saturday and in the evening, rain late at night,
  • Mostly cloudy with rain and a bit warmer Sunday, rain likely (70%) Sunday night,
  • Then mostly cloudy and a bit warmer with rain likely (70%) Monday.
  • highs 62-58 warming back to 62 Monday lows 49-45. (Seasonal Averages high 60 low 45)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Mostly cloudy with evening showers, showers and snow showers with patchy fog late tonight (2 in. of snow possible),
  • Mostly cloudy with patchy fog and snow showers and rain showers and a bit cooler Tuesday (1-4 in. of snow possible), showers with patchy evening fog, snow showers late Tuesday night (1-4 in. of snow possible),
  • Mostly cloudy with snow showers and a bit cooler Wednesday, a (40%) chance of  evening snow showers, widespread frost late at night,
  • Partly cloudy with widespread AM frost, partly cloudy and a bit warmer Thursday afternoon, widespread evening frost, mostly cloudy with a slight (20%) chance of snow with a good (50%) chance of rain late Thursday night.
  • snow level 7,000 ft. falling to 4,500 ft. late tonight, 3,500 ft. Tuesday, 2,500 ft. Tuesday night through Wednesday night, free air freezing level at the surface Thursday, then snow level 3,000 ft. Thursday night, then 7,500 ft. Friday and Friday night.
  • lows 28-17 warming to 24 Thursday night highs 32-29 warming to 33 Thursday.
  • Cloudy with a good (50%) chance of rain and a bit warmer Friday, rain Friday night,
  • Mostly cloudy and a bit cooler with rain and snow likely (70%) Saturday, snow and rain at night,
  • Mostly cloudy with snow and rain and a bit cooler Sunday, snow and rain likely (70%) Sunday night,
  • Then mostly cloudy and a bit warmer with rain and snow likely (70%) Monday.
  • 7,500 ft. Friday and Friday night, 5,000 ft. Saturday, 4,000 ft. Saturday night and Sunday, 3,500 ft. Sunday night, then 5,000 ft. Monday.
  • highs 38-33 warming to 35 Monday lows 26-34 cooling to 29 Saturday night.
  • For all of your Eugene-Springfield and Lane County News, Weather, and Sports go to: EugeneDailyNews.com

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8/ 22 Plenty of sunshine, but cooler to start your workweek today.

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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.