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Tim Chuey Weather

Check out my latest Eugene Daily News Weather Or Not column:

It Happened again. Right On Schedule.

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Here is my weekly weather quiz question for the last time. What is the “Greenhouse Effect?” Here is the correct answer. Greenhouse Effect: Atmospheric heating caused by solar radiation being readily transmitted inward through the earth’s atmosphere but longwave radiation less readily transmitted outward, due to absorption by certain gases in the atmosphere.  I’ll have a new weekly weather quiz question for you starting Monday. The first person to post the correct answer as a comment on this page will win a week of free personalized weather forecasts tailored to your needs. Good luck.

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An Upper Level Low (Shaded “U” shape with arrows) will move in to bring us back to much cooler but normal Fall temperatures and the chance of showers. The graphics for days 3-7  show a frontal system approaching the coast Monday AM and moving through Oregon Tuesday.

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Air Quality Index:

Eugene/Springfield: The Air Quality Index is 49 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 74 in the Moderate category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 60 in the Moderate category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

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ADVISORIES:

HEALTH ADVISORIES:

  • A PUBLIC HEALTH ADVISORY IS IN EFFECT FOR HIGHER-THAN-NORMAL LEVELS OF BACTERIA IN OCEAN WATERS AT TWIN ROCKS BEACH, LOCATED IN TILLAMOOK COUNTY. WATER SAMPLES INDICATE HIGHER-THAN-NORMAL LEVELS OF FECAL BACTERIA, WHICH 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. THIS APPLIES ESPECIALLY TO CHILDREN AND THE ELDERLY, WHO MAY BE MORE VULNERABLE TO WATERBORN BACTERIA. WHILE THIS ADVISORY IS IN EFFECT AT TWIN ROCKS BEACH, VISITORS SHOULD AVOID WADING IN NEARBY CREEKS, POOLS OF WATER ON THE BEACH, OR IN  DISCOLORED WATER, AND STAY CLEAR OF WATER RUNNOFF FLOWING INTO THE OCEAN. EVEN IF THERE IS NO ADVISORY IN EFFECT, OFFICIALS RECOMMEND AVOIDING SWIMMING IN THE OCEAN WITHIN 48 HOURS AFTER A RAINSTORM. OTHER BEACH ACTIVITIES ARE SAFE TO ENJOY.
  • A RECREATIONAL USE HEALTH ADVISORY HAS BEEN ISSUED FOR KENO DAM RESERVOIR LOCATED APPROXIMATELY 12 MILES SOUTHWEST OF KLAMATH FALLS ON OREGON HIGHWAY 66 W IN KLAMATH COUNTY. WATER MONITORING HAS CONFIRMED THE PRESENCE OF CYANOBACTERIA AND THE TOXINS THEY PRODUCE IN KENO DAM RESERVOIR. THE CYANOTOXIN CONCENTRATIONS FOUND CAN BE HARMFUL TO TO HUMANS AND ANIMALS. PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED WATER ACTIVITIES LIKE WATER SKIING OR POWER BOATING IN AREAS OF THE RESERVOIR WHERE CYNOTOXINS ARE IDENTIFIED. ALTHOUGH TOXINS ARE NOT ABSORBED THROUGH THE SKIN, PEOPLE WHO HAVE SKIN  SENSITIVITIES MAY EXPERIENCE A PUFFY RED RASH AT THE AFFECTED AREA. DRINKING WATER DIRECTLY FROM THE LAKE IS ESPECIALLY DANGEROUS TOXINS CANNOT BE REMOVED BY ANY TECHNIQUE. DRINKING WATER DIRECTLY FROM THE RESERVOIR AT THIS TIME IS ESPECIALLY DANGEROUS. ALSO THE TOXINS CAN NOT BE REMOVED BY BOILING, FILTERING OR TREATING WATER WITH CAMPING-STYLE FILTERS.
  • A PUBLIC HEALTH ADVISORY IS IN EFFECT FOR HIGHER-THAN-NORMAL LEVELS OF BACTERIA IN OCEAN WATERS AT SEAL ROCK STATE PARK BEACH, LOCATED IN LINCOLN COUNTY. WATER SAMPLES INDICATE HIGHER-THAN-NORMAL LEVELS OF FECAL BACTERIA, WHICH 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. THIS APPLIES ESPECIALLY TO CHILDREN AND THE ELDERLY, WHO MAY BE MORE VULNERABLE TO WATERBORN BACTERIA. WHILE THIS ADVISORY IS IN EFFECT AT SEAL ROCK STATE PARK BEACH, VISITORS SHOULD AVOID WADING IN NEARBY CREEKS, POOLS OF WATER ON THE BEACH, OR IN  DISCOLORED WATER, AND STAY CLEAR OF WATER RUNNOFF FLOWING INTO THE OCEAN. EVEN IF THERE IS NO ADVISORY IN EFFECT, OFFICIALS RECOMMEND AVOIDING SWIMMING IN THE OCEAN WITHIN 48 HOURS AFTER A RAINSTORM. OTHER BEACH ACTIVITIES ARE SAFE TO ENJOY.
  • A RECREATIONAL USE HEALTH ADVISORY HAS BEEN ISSUED FOR WILLOW CREEK RESERVOIR, LOCATED JUST EAST OF THE TOWN OF HEPNER IN MORROW COUNTY.   WATER MONITORING HAS CONFIRMED THE CYANOBACTERIA AND THE TOXINS THEY PRODUCE ARE ABOVE RECREATIONAL VALUES FOR HUMAN EXPOSURE. THE CYNOTOXIN CONCENTRATIONS FOUND CAN BE HARMFUL TO HUMANS AND ANIMALS. PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED WATER ACTIVITIES LIKE WATER SKIING OR POWER BOATING IN AREAS OF THE LAKE WHERE CYNOTOXINS ARE IDENTIFIED. ALTHOUGH TOXINS ARE NOT ABSORBED THROUGH THE SKIN, PEOPLE WHO HAVE SKIN  SENSITIVITIES MAY EXPERIENCE A PUFFY RED RASH AT THE AFFECTED AREA. DRINKING WATER DIRECTLY FROM THE LAKE IS ESPECIALLY DANGEROUS TOXINS CANNOT BE REMOVED BY ANY TECHNIQUE.
  • A RECREATIONAL HEALTH ADVISORY HAS BEEN ISSUED FOR UPPER KLAMATH LAKE, LOCATED OFF ROUTE 140, 15 MILES WEST OF KLAMATH FALLS IN KLAMATH COUNTY.  WATER MONITORING HAS CONFIRMED THE CYANOBACTERIA AND THE TOXINS THEY PRODUCE ARE ABOVE RECREATIONAL VALUES FOR HUMAN EXPOSURE. THE CYNOTOXIN CONCENTRATIONS FOUND CAN BE HARMFUL TO HUMANS AND ANIMALS. PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED WATER ACTIVITIES LIKE WATER SKIING OR POWER BOATING IN AREAS OF THE LAKE WHERE CYNOTOXINS ARE IDENTIFIED. ALTHOUGH TOXINS ARE NOT ABSORBED THROUGH THE SKIN, PEOPLE WHO HAVE SKIN  SENSITIVITIES MAY EXPERIENCE A PUFFY RED RASH AT THE AFFECTED AREA. DRINKING WATER DIRECTLY FROM THE LAKE IS ESPECIALLY DANGEROUS TOXINS CANNOT BE REMOVED BY ANY TECHNIQUE.
  • 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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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:

  • A mix of clouds and sun and cooler today, becoming mostly cloudy with a slight (20%) chance of showers tonight (under 0.10 in. of rain possible),
  • A mix of clouds and sun and a bit warmer Sunday with a slight (20%) chance of AM showers (under 0.10 in. of rain possible), just partly cloudy Sunday night,
  • A mix of clouds and sun with a slight (20%) chance of showers Monday, partly cloudy with (30%) chance of evening showers, then a slight (20%) chance of showers late at night.
  • highs 70-73 lows 52-49.
  • Partly cloudy with a slight (20%)  chance of showers Tuesday and at night,
  • A slight (20%) chance of AM showers, partly cloudy and a bit cooler Wednesday afternoon and evening, mostly cloudy with a  (30%) chance of showers late Wednesday night,
  • A mix of clouds and a bit warmer Thursday with a (30%) chance of AM showers and a slight (20%) chance of showers in the afternoon, partly cloudy with a slight (20%) chance of evening showers, just partly cloudy late at night,
  • Some AM clouds, then mostly sunny and a bit warmer Friday afternoon.
  • highs 72-68 warming to 73 Friday lows 48-45. (seasonal averages high 72 low 44)

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Your College Football Forecast    

Saturday September 29th:

Ducks vs Cal at  California Memorial Stadium, Berkeley, California – Kickoff: 7:30 pm PDT- Partly cloudy 65, cooling as the game progresses.

Beavers vs Arizona State at Sun Devil Stadium, Tempe, Arizona – Kickoff: 7 pm PDT- Clear 98, cooling as the game progresses.

 

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Forecast for Roseburg:

  • Mostly cloudy and a bit cooler with a slight (20%) chance of thunderstorms this afternoon, a (30%) chance of scattered showers and isolated thunderstorms this evening, a (30%) chance of showers late tonight (under 0.10 in. of rain possible),
  • Mostly cloudy with a slight (20%) chance of showers Sunday (under 0.10 in. of rain possible), partly cloudy Sunday night,
  • Partly cloudy with a (30%) chance of showers Monday, then a slight (20%) chance of showers Monday night.
  • highs near 75 lows 53-50.
  • Mostly cloudy with a slight (20%) chance of showers Tuesday and Tuesday night,
  • Mostly cloudy with a slight (20%) chance of AM showers, partly cloudy and a bit cooler Wednesday afternoon and evening, mostly cloudy with a slight (20%) chance of showers late Wednesday night,
  • Mostly cloudy with a slight (20%) chance of AM showers, partly cloudy and a bit warmer Thursday afternoon and at night.
  • Partly cloudy in the AM, then breaking out to sunny and a bit warmer Friday afternoon.
  • highs 75-73  warming to 80 Friday lows 49-46 warming back to 49 Thursday night. (seasonal averages high 74 low 48)

 

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Forecast for The South Oregon Coast Including Coos Bay and North Bend,

  • Mostly cloudy with areas of AM fog, a slight (20%) chance of AM coastal showers and drizzle and a slight (20%) chance of afternoon coastal showers and a bit warmer today while a slight (20%) chance of inland AM drizzle and a slight (20%) chance of inland afternoon thunderstorms and a bit cooler (under 0.10 in. of rain possible), a (30%) chance of isolated evening thunderstorms,  a (30%) chance of showers late tonight (under 0.10 in. of rain possible),
  • Mostly cloudy with a slight (20%) chance of showers Sunday, just mostly cloudy at night,
  • Mostly cloudy with a (40%) chance of showers Monday, a slight (20%) chance of evening showers, then just mostly Monday night.
  • highs near 66 lows near 53.
  • Mostly cloudy and a bit cooler with a slight (20%) chance of showers Tuesday and in the evening, mostly cloudy late Tuesday night,
  • AM clouds, partly cloudy Wednesday afternoon and evening, mostly cloudy with a slight (20%) chance of showers late at night and Thursday AM, partly cloudy and a bit warmer in the afternoon and at night,
  • Some AM clouds, then sunny Friday afternoon.
  • highs 65-63 warming to 68 Friday lows 49-53. (seasonal averages high 64 low 48)

 

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Forecast for the Cascades in Lane County:

  • Partly cloudy hazy with areas of smoke this AM, a bit cooler with a slight (20%) chance of showers and thunderstorms this afternoon, mostly cloudy with evening showers likely (70%) and a slight (20%) chance of thunderstorms, showers likely (70%) late tonight,
  • A mix of clouds and sun Sunday with a (40%) chance of AM showers, a bit cooler with a slight (20%) chance of showers in the afternoon, just partly cloudy at night,
  • A mix of clouds and sun and a bit warmer with a slight (20%) chance of showers Monday, mostly cloudy with a (30%) chance of evening showers, then partly cloudy with a slight (20%) chance of showers late Monday night.
  • snow level above 8,000 ft. this afternoon and tonight, 8,000 ft. Sunday, free air freezing level 11,000 ft. Sunday night, snow level above 8,000 ft. Monday and Monday night.
  • highs 60-57 lows 42-40 warming back to 42 Monday night.
  • A mix of clouds and sun Tuesday with a slight (20%) chance of AM showers, a (30%) chance of afternoon showers, partly cloudy with a (30%) chance of evening showers, a slight (20%) chance of showers late Tuesday night and Wednesday AM, partly cloudy and a bit cooler in the afternoon and evening, mostly cloudy with a (30%) chance of showers late Wednesday night,
  • A mix of clouds and sun and a bit cooler Thursday with a (30%) chance of AM showers and a slight (20% chance of afternoon showers, a slight (20%) chance of evening showers, just partly cloudy late at night,
  • Some AM clouds, then mostly sunny and a bit warmer Friday afternoon.
  • snow level above 8,000 ft. Tuesday, above 8,000 ft. 12,000 ft. falling to 7,500 ft. late Tuesday night, snow level 7,500 ft. Wednesday AM, free air freezing level 10,000 ft. Wednesday evening, snow level 7,000 ft. Thursday, 6,000 ft. Thursday evening, then free air freezing level 13,000 ft. late Thursday night and Friday.
  • highs 58-54 warming to 64 Friday lows near 38.

 

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**Because weather forecasting is a combination of science, intuition, and timing there can be no absolute guarantees that individual forecasts will be 100% accurate. Nature is in a constant state of flux and sudden unexpected weather events can happen.

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Get your local Eugene-Springfield and Lane County news on-line at eugenedailynews.com.

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