It starts out as rain, then rain/snow – then just snow?

Check out my latest Eugene Daily News “Weather Or Not” column now at:

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There’s No Stupid Question. Stupid Is If It’s Not Asked.

Here is my weekly weather quiz question. What is  “Radiation Fog?“  The First person to post the correct answer as a comment will win a week of free personalized weather forecasts tailored to your needs.

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ADVISORIES:

  • A HURRICANE FORCE WIND WARNING IS IN EFFECT FOR THE WASHINGTON AND OREGON OFFSHORE WATERS.
  • A WINTER STORM WARNING IS IN EFFECT FROM 10 AM TODAY UNTIL NOON WEDNESDAY FOR THE CASCADES IN LANE COUNTY.
  • A WINTER WEATHER ADVISORY IS IN EFFECT FROM NOON TODAY UNTIL 10 AM WEDNESDAY FOR THE SOUTH WILLAMETTE VALLEY, AND THE CENTRAL COAST RANGE OF WESTERN OREGON..
  • A WINTER WEATHER ADVISORY IS IN EFFECT FROM NOON TODAY UNTIL NOON WEDNESDAY FOR THE CENTRAL COLUMBIA RIVER GORGE, THE NORTHERN CASCADES FOOTHILLS, THE CASCADES FOOTHILLS IN LANE COUNTY, THE UPPER HOOD RIVER VALLEY.
  • A WINTER WEATHER ADVISORY IS IN EFFECT FROM 10 AM TODAY UNTIL NOON WEDNESDAY FOR THE NORTHERN OREGON CASCADES.
  • A WINTER STORM WARNING IS IN EFFECT FROM 10 AM TODAY UNTIL 10 AM WEDNESDAY FOR THE SEXTON PASSES AND ABOVE 2,500 FT. FOR CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY, JOSEPHINE COUNTY, THE EASTERN DOUGLAS COUNTY FOOTHILLS,  JACKSON COUNTY, THE SOUTHERN OREGON CASCADES, AND THE SISKIYOU MOUNTAINS.
  • A WINTER WEATHER ADVISORY IS IN EFFECT FROM 4 PM TODAY UNTIL UNTIL 10 AM WEDNESDAY ABOVE 1,000 FT. FOR CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY, JOSEPHINE COUNTY, THE EASTERN DOUGLAS COUNTY FOOTHILLS,  JACKSON COUNTY, THE SOUTHERN OREGON CASCADES, AND THE SISKIYOU MOUNTAINS.
  • A WINTER WEATHER ADVISORY IS IN EFFECT FROM 4 PM TODAY UNTIL 10 AM WEDNESDAY BELOW 2,500 FT. FOR CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY, JOSEPHINE COUNTY, THE EASTERN DOUGLAS COUNTY FOOTHILLS,  JACKSON COUNTY, THE SOUTHERN OREGON CASCADES, AND THE SISKIYOU MOUNTAINS.
  • A WINTER WEATHER ADVISORY IS IN EFFECT FROM 10 AM TODAY UNTIL 10 AM WEDNESDAY FOR THE SOUTH CENTRAL OREGON CASCADES, THE SOUTHERN OREGON CASCADES, AND THE SISKIYOU MOUNTAINS, THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY,  WESTERN, CENTRAL, AND EASTERN LAKE COUNTY, AND THE SOUTH CENTRAL OREGON CASCADES.
  • A WINTER WEATHER ADVISORY IS IN EFFECT FROM 10 AM TODAY UNTIL 10 AM WEDNESDAY ABOVE 1,500 FT. FOR CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY, JOSEPHINE COUNTY, THE EASTERN DOUGLAS COUNTY FOOTHILLS, JACKSON COUNTY, THE SOUTHERN OREGON CASCADES, AND THE SISKIYOU MOUNTAINS.
  • A WINTER WEATHER ADVISORY IS IN EFFECT FROM 4 PM TODAY UNTIL 10 AM WEDNESDAY ABOVE 1,500 FT. FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
  • A HIGH SURF ADVISORY IS IN EFFECT FROM 1 PM TODAY UNTIL 10 AM WEDNESDAY FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
  • A HIGH WIND WARNING IS IN EFFECT FROM 10 AM TODAY UNTIL 1 AM WEDNESDAY FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
  • A WIND ADVISORY IS IN EFFECT FROM 1 PM UNTIL 1 AM WEDNESDAY FOR CENTRAL DOUGLAS COUNTY, AND *THE EASTERN DOUGLAS COUNTY FOOTHILLS.
  • A WINTER STORM WATCH IS IN EFFECT FROM THIS AFTERNOON THROUGH WEDNESDAY EVENING FOR THE OCHOCO, THE JOHN DAY HIGHLANDS, NORTH CENTRAL OREGON, CENTRAL OREGON, AND THE EAST SLOPES OF THE OREGON CASCADES.

HEALTH ADVISORIES:

  • A RECREATIONAL USE HEALTH ADVISORY IS IN EFFECT FOR NORTH TENMILE LAKE IN COOS COUNTY  AND SOUTH TENMILE LAKE IN COOS COUNTY  DUE TO THE PRESENCE OF A CYANOBACTERIAL (HARMFUL ALGAE) BLOOM AND CYANOTOXINS (HARMFUL ALGAE TOXINS) ABOVE RECREATIONAL GUIDELINE VALUES FOR HUMAN EXPOSURE. PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED WATER SKIING OR POWER BOATING, IN AREAS OF THE LAKE WHERE BLOOMS ARE IDENTIFIED. BOATING IS SAFE AS LONG AS SPEEDS DO NOT CREATE EXCESSIVE WATER SPRAY, WHICH COULD LEAD TO INHALATION RISK. ALTHOUGH TOXINS ARE NOT ABSORBED THROUGH THE SKIN, PEOPLE WHO HAVE SKIN SENSITIVITIES MAY EXPERIENCE A PUFFY RED RASH.
  • A PUBLIC HEALTH ADVISORY REMAINS IN EFFECT FOR WATER CONTACT AT NESKOWIN BEACH IN TILLAMOOK COUNTY DUE TO HIGHER-THAN-NORMAL LEVELS OF FECAL BACTERIA. FECAL BACTERIA CAN CAUSE DIARRHEA, STOMACH CRAMPS, SKIN RASHES, UPPER RESPIRATORY INFECTIONS AND OTHER ILLNESSES. PEOPLE SHOULD AVOID DIRECT CONTACT WITH THE WATER IN THIS AREA UNTIL THE ADVISORY IS LIFTED. VISITORS SHOULD AVOID WADING IN NEARBY CREEKS, POLS OF WATER ON THE BEACH, OR IN DISCOLORED WATER, AND STAY CLEAR OF WATER RUNOFF FLOWING INTO THE OCEAN.
  • RECREATIONAL USE HEALTH ADVISORIES REMAIN IN EFFECT FOR THE HOWARD’S BAY AREA OF UPPER KLAMATH LAKE IN KLAMATH COUNTY DUE TO THE PRESENCE OF AS CYANOBACTERIAL (HARMFUL ALGAE) BLOOM AND CYANOTOXINS (HARMFUL ALGAE TOXINS) ABOVE RECREATIONAL GUIDELINE VALUES FOR HUMAN EXPOSURE. PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED WATER SKIING OR POWER BOATING, IN AREAS OF THE LAKE WHERE BLOOMS ARE IDENTIFIED. BOATING IS SAFE AS LONG AS SPEEDS DO NOT CREATE EXCESSIVE WATER SPRAY, WHICH COULD LEAD TO INHALATION RISK. ALTHOUGH TOXINS ARE NOT ABSORBED THROUGH THE SKIN, PEOPLE WHO HAVE SKIN SENSITIVITIES MAY EXPERIENCE A PUFFY RED RASH.
  • A PRECAUTIONARY RECREATIONAL USE HEALTH ADVISORY FOR THE 2019 CYANOBACTERIAL (HARMFUL ALGAE) BLOOM SEASON REMAINS IN EFFECT FOR LAKE BILLY CHINOOK IN JEFFERSON COUNTY DUE TO CYANOBACTERIAL BLOOMS THAT ROUTINELY DEVELOP IN THE LAKE. NO BLOOMS HAVE BEEN DETECTED AT THIS TIME, BUT BLOOMS CAN DEVELOP THROUGHOUT THE SEASON AND IN AREAS THAT ARE NOT VISUALLY MONITORED BY JEFFERSON COUNTY , OREGON STATE PARKS, OR THE U.S. FOREST SERVICE. THE ADVISORY WILL REMAIN IN EFFECT THROUGH NOVEMBER 1, 2019.
  • 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.

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THE WEATHER PATTERN:

An Upper Level Low Pressure Trough (Shaded “U” shape with arrows) continues moving eastward and will be followed by another trough. The graphics for days 1-3 show a frontal system at the Oregon today and Wednesday. The graphics for days 3-7 show a complex frontal system offshore Saturday, moving onshore Sunday and Monday.

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THE AIR QUALITY INDEX:

For the local area:

Eugene/Springfield: The Air Quality Index is 56 in the Moderate category measuring Particulate Matter.

Oakridge: The Air Quality Index is 48 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 75 in the Moderate category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

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Home Wood Heating Advisory

Posted Daily

Eugene-Springfield: GREEN – Burning is Allowed.

Oakridge: GREEN – Burning is Allowed.

*Note: Pellet stoves may be used anytime if they produce no visible emissions.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

 

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FORECASTS:

Forecast for the Southern Willamette Valley including Eugene and Springfield:

  • Mostly cloudy with patchy fog and rain and a bit cooler today (0.50 in. of rain possible, snow level 1,000 ft., no accumulation expected), evening rain and snow, a good (50%) chance of snow showers late tonight (0.25 in. of rain possible, 1 in. of snow possible valley floor while 2 in. of snow possible higher hills, snow level 500 ft.),
  • A good (50%) chance of rain and snow showers and a bit cooler Wednesday (under 0.10 in. of rain possible, snow level 500 ft., little or no snow accumulation expected),  just mostly cloudy in the evening, partly cloudy and colder late Wednesday night,
  • Some AM clouds, sunny and a bit cooler Thursday afternoon (Thanksgiving Day), then partly cloudy at night.
  • highs 42-37 lows 29-20.
  • Mostly sunny and a bit cooler Friday, partly cloudy Friday night,
  • Partly cloudy and a bit warmer Saturday, mostly cloudy a good (50%) chance of rain and snow showers at night,
  • Mostly cloudy with a (40%) chance of showers and a bit warmer Sunday, a (30%) chance of showers Sunday night,
  • A (30%) chance of AM rain, then mostly cloudy and a bit warmer with a slight (20%) chance of rain Monday afternoon.
  • highs 35-43 lows 19-28. (seasonal averages high 49 low 36)

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Your College Football Forecast    

Saturday November 30th: THE CIVIL WAR GAME

Ducks vs Oregon State, at Autzen Stadium,– Kickoff: 1:00 PM, Partly cloudy 35, warming to 37 then cooling through the rest of the game. It will be chilly, but so far it looks like the rain/snow chance will hold off until nighttime.

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Forecast for the Umpqua Valley including Roseburg

  • Mostly cloudy and cooler with rain and snow today (0.25 in. of rain possible), and windy (Wind: S 10-15 mph increasing and shifting to SE 20-30 mph this afternoon), evening rain and snow, rain and snow showers likely (70%) late tonight (0.25 in. of rain possible, 1 in. of snow possible lower elevations while 3-4 in. of snow above 1,500 ft., snow level 900 ft.) and windy (Wind: E 2-30 mph decreasing and shifting N 15-25 mph late evening, then decreasing and shifting to NW 10-15 mph late tonight),
  • Cloudy AM rain and snow showers likely (70%), a good (50%) chance of rain and snow showers and a bit cooler Wednesday afternoon, (under 0.10 in. of rain possible),  a slight (20%) chance of evening rain and snow showers, just mostly cloudy late Wednesday night and Thursday AM, partly cloudy and a bit cooler in the afternoon (Thanksgiving Day),  then mostly clear Thursday night.
  • highs 42-36 lows 35-22.
  • Mostly sunny and a bit warmer Friday, mostly clear Friday night,
  • Some AM clouds, mostly cloudy with a slight (20%) chance of rain and snow and a bit warmer Saturday afternoon,  a good (50%) chance of rain and snow at night,
  • Then mostly cloudy with a (40%) chance of showers and a bit warmer Sunday through Monday.
  • highs 38-46 lows 23-32 (seasonal averages high 50 low 39)

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

  • Mostly cloudy with AM rain, coastal rain and isolated thunderstorms this afternoon and a bit cooler while inland rain, snow and isolated thunderstorms this afternoon (0.75 in. of rain possible, snow level 2,000 ft. falling to 1,500 ft. this afternoon, no accumulation expected) and windy (Wind: at the shore: S 10-15 mph increasing and shifting SE 25-40 mph while inland S 5-10 mph increasing and shifting to SE 20-30 mph), evening coastal rain with coastal showers likely (70%) late at night while inland evening rain and snow with inland rain and snow showers likely (70%) inland late tonight (0.50 in. of rain possible, 1 in. of snow possible inland),
  • Mostly cloudy with a (50%) chance of AM coastal rain and snow showers with a (40%) chance of afternoon showers and a bit cooler Wednesday afternoon while a (40%) chance of inland rain and snow showers Wednesday (under 0.10 in. of rain possible), mostly cloudy with a slight (20%) chance of evening coastal showers and partly cloudy late at night while mostly cloudy with a slight (20%) chance of evening inland rain and snow showers and just partly cloudy inland late Wednesday night,
  • Mostly sunny and a bit cooler Thursday (Thanksgiving Day), sunny in the afternoon, then mostly clear Thursday night.
  • high 46-43 lows 36-28.
  • Mostly sunny and a bit warmer Friday, mostly clear in the evening, partly cloudy at night and Saturday AM, mostly cloudy and a bit warmer with a slight (20%) chance of rain in the afternoon, evening rain likely (70%), a (30%) chance of rain late Saturday night,
  • Then mostly cloudy and a bit warmer with a good (50%) chance of showers Sunday through Monday.
  • highs 45-54 lows 32-34. (seasonal averages high 53 low 41)

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Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Mostly cloudy and a bit cooler with snow today, possibly heavy this afternoon (3-7 in. of snow possible), evening snow, snow showers and breezy (Wind: E 15-25 mph gusts to 25 mph) late Tuesday night (3-7 in. of snow possible),
  • Mostly cloudy with snow showers likely (70%) and a bit cooler Wednesday (1-2 in. of snow possible), a (40%) chance of evening snow showers, a slight (20%) chance of snow showers late at night (little or no accumulation possible),
  • AM clouds and sun with a slight (20%) chance of snow showers, a mix of clouds and sun and slightly cooler Thursday afternoon (Thanksgiving Day), then just partly cloudy Thursday night.
  • snow level 2,000 ft. today through Wednesday night, then free air freezing level at the surface Thursday afternoon and Thursday night.
  • highs 26-22 lows 16-7.
  • Partly cloudy and slightly warmer Friday and Friday night,
  • Partly cloudy and slightly warmer Saturday with a (40%) chance of snow showers and a bit warmer in the afternoon, mostly cloudy with a (40%) chance of snow showers at night,
  • Mostly cloudy with a (30%) chance of rain and snow showers and a bit warmer Sunday, then a (40%) chance of rain and snow and a bit warmer Sunday night and Monday.
  • free air freezing level at the surface Friday, 2,500 ft. falling to the surface late Friday night, at the surface Saturday AM, snow level 1,500 ft. Saturday night, 3,000 ft. Sunday, 5,000 ft. falling to 3,500 ft. late Sunday night, then 3,000 ft. rising to 4,000 ft. Monday.
  • highs 23-33 lows 7-20.

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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 change due to unexpected changes in atmospheric conditions, so there are no guarantees that the actual weather will conform to the projected forecast.

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For all of your Lane County and Eugene-Springfield News, Weather and Sports go to: eugenedailynews.com

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