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Tim Chuey Weather

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

Did Drought Wipe Out A Civilization?

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Here is my weekly weather quiz question for the last time. What is  “Frazil Ice?” Here is the correct answer.  Frazil Ice: In hydrologic terms, fine spicules, plates, or discoids of ice suspended in water. In rivers and lakes, frazil is formed in supercooled, turbulent water. I’ll have a new weekly weather quiz question for you on 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 formed by arrows) returns the warmer air ahead of it and also brings the chance of mainly mountain thunderstorms with the increased marine airflow. The graphics for days 3-7  show a frontal system trying to move into Oregon Thursday.

Note: The haze may have been gone at the Eugene Airport but it was still present a tree level in the South Hills.

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Air Quality Index:

Eugene/Springfield: The Air Quality Index is 51 in the Moderate category measuring Particulate Matter.

Oakridge: The Air Quality Index is 43 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 46 in the Good category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

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ADVISORIES:

  • AN AIR QUALITY ALERT IS IN EFFECT UNTIL FURTHER NOTICE FOR EASTERN CURRY COUNTY, JOSEPHINE COUNTY, JACKSON COUNTY, THE SOUTH CENTRAL OREGON CASCADES, THE SOUTHERN OREGON CASCADES, THE SISKIYOU MOUNTAINS, THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY.

HEALTH ADVISORIES:

  • 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 UPDATED TO INCLUDE ONLY THE WILLAMETTE RIVER’S ROSS ISLAND LAGOONCATED ABOUT 1 MILE SOUTH OF DOWNTOWN PORTLAND IN MULTNOMAH COUNTY. THE ADVISORY HAS BEEN ISSUED DUE TO VISUAL CONFIRMATION OF A CYANOBACTERIA BLOOM (HARMFUL ALGAE) IN THE LAGOON. WATER SAMPLES HAVE BEEN TAKEN TO CONFIRM THE TYPE OF CYANOBACTERIA AND THE LEVEL OF POTENTIAL TOXINS THAT MAY BE PRODUCED. DRINKING WATER DIRECTLY FROM THE RIVER WHERE A BLOOM IS IDENTIFIED IS ESPECIALLY DANGEROUS SINCE ANY TOXINS PRODUCED CANNOT BE REMOVED BY ANY BOILING, FILTERING OR TREATING THE WATER WITH CAMPING STYLE FILTERS. NO PUBLIC DRINKING OR POTABLE WATER SYSTEMS ARE AFFECTED. PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED WATER ACTIVITIES LIKE WATER SKIING OR POWER BOATING IN AREAS OF  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  IS ESPECIALLY DANGEROUS TOXINS CANNOT BE REMOVED BY ANY TECHNIQUE.
  • 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:

  • Sunny hazy and slightly cooler today, mostly clear tonight,
  • Mostly sunny, hot and hazy Monday, mostly clear and hazy at night,
  • Mostly sunny, hot and hazy Tuesday, hazy in the evening, then partly cloudy Tuesday night.
  • highs 86-94 lows 53-58.
  • Partly cloudy and a bit cooler Wednesday and Wednesday night,
  • Then mostly sunny and a bit cooler Thursday, Friday and Saturday, mostly clear each night,
  • highs 87-83 lows 54-52. (seasonal averages high 83 low 51)

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Eugene-Springfield Pollen Count

Grass………. Low (0)
Trees………. Low (0)
Last Counted: 8/14/18
Data Courtesy of Oregon Allergy Associates

Note: The Grass & Tree Pollen Season is all but over. Pollen count updates will be less frequent.

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Forecast for Roseburg:

  • Sunny today, mostly clear this evening, partly cloudy late tonight,
  • AM clouds, sunny and a bit warmer Monday afternoon, mostly clear in the evening, partly cloudy late at night,
  • Partly cloudy with a slight (20%) chance of thunderstorms Tuesday and Tuesday night.
  • highs 90-95 lows 57-62 cooling to 60 Tuesday night.
  • Partly cloudy with a slight (20%) chance of AM showers, a slight (20%) chance of thunderstorms Wednesday afternoon and in the evening, mostly clear late at night,
  • Mostly sunny and a bit cooler Thursday, mostly clear Thursday night,
  • Then sunny Friday and Saturday, clear Friday night.
  • highs 87-82 warming to 86 Saturday lows 60-54. (seasonal averages high 84 low 55)

 

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

  • Partly cloudy and a bit cooler today, mostly clear this evening and mostly cloudy late tonight and Monday AM, mostly sunny and a bit cooler in the afternoon, partly cloudy Monday night,
  • Partly cloudy and a bit warmer Tuesday and Tuesday night.
  • highs 67-63 warming to 75 Tuesday lows 54-58 cooling to 56 Tuesday night.
  • Mostly cloudy with a slight (20%) chance of AM showers Wednesday, partly cloudy in the afternoon, mostly clear Wednesday night,
  • Mostly sunny Thursday and Friday, mostly clear at night,
  • Then sunny Saturday.
  • highs 66-64 warming to 67 Saturday lows 55-53. (seasonal averages high 66 low 53)

 

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Forecast for the Cascades in Lane County:

  • Mostly sunny and hazy with areas of smoke and a bit cooler with a slight (20%) chance of showers and thunderstorms this afternoon, mostly clear and hazy with a slight (20%) chance of evening showers and thunderstorms, just mostly clear and hazy late tonight,
  • Mostly sunny and hazy with a slight (20%) chance of showers and thunderstorms and a bit warmer Monday afternoon, partly cloudy with a slight (20%) chance of evening showers and thunderstorms, just partly cloudy and hazy late at night,
  • Mostly sunny and hazy Tuesday AM, partly cloudy hazy with areas  of smoke and a bit warmer with a slight (20%) chance of showers and thunderstorms in the afternoon and evening, then just partly cloudy and hazy late Tuesday night.
  • snow level above 8,000 ft. today through Tuesday night.
  • highs 78-82 lows 48-53.
  • Partly cloudy and hazy Wednesday AM, partly cloudy hazy and a bit cooler with a slight (20%) chance of showers and thunderstorms in the afternoon and evening, just partly cloudy late Wednesday night,
  • Then mostly sunny and a bit cooler Thursday, Friday, and Saturday, mostly clear each night.
  • snow level above 8,000 ft. Wednesday and Wednesday night, free air freezing level 15,000 ft. Thursday, then 14,000 ft. Thursday night through Saturday.
  • highs 75-72 lows 48-45.

 

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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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