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July 12, 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 RED FLAG WARNING IS IN EFFECT UNTIL 8 PM TONIGHT FOR STRONG GUSTY WIND AND LOW RELATIVE HUMIDITY FOR THE KLAMATH BASIN AND THE FREEMONT- WINEMA NATIONAL FOREST.
  • A HEAT ADVISORY IS IN EFFECT UNTIL 11 PM TONIGHT FOR NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY.
  • A HEAT ADVISORY IS IN EFFECT UNTIL 9 PM TONIGHT FOR THE FOOTHILLS OF THE NORTHERN BLUE MOUNTAINS OF OREGON.
  • A HEAT ADVISORY IS IN EFFECT UNTIL 9 PM TONIGHT FOR THE LOWER COLUMBIA BASIN.

HEALTH ADVISORIES

  • A PUBLIC HEALTH ADVISORY IS IN EFFECT FOR UNSAFE LEVELS OF FECAL BACTERIA IN OCEAN WATERS AT D RIVER BEACH IN LINCOLN COUNTY. PEOPLE SHOULD AVOID DIRECT CONTACT WITH THE WATER IN THIS AREA UNTIL THE ADVISORY IS LIFTED. UNSAFE LEVELS OF FECAL BACTERIA CAN CAUSE DIARRHEA, STOMACH CRAMPS, SKIN RASHES, UPPER RESPIRATORY INFECTIONS, AND OTHER ILLNESSES. CHILDREN,ELDERLY AND THOSE WITH A COMPROMISED IMMUNE SYSTEM SHOULD USE EXTRA CAUTION AS THEY ARE MORE VULNERABLE TO ILLNESSES FROM WATERBORNE BACTERIA.VISITORS SHOULD AVOID WADING IN NEARBY CREEKS, POOLS OF WATER ON THE BEACH, OR IN DISCOLORED WATER, AND STAY CLEAR OF RUNOFF FLOWING INTO THE OCEAN. LEVELS OF FECAL BACTERIA TEND TO BE HIGHER IN THESE TYPES OF WATER SOURCES.
  • A RECREATIONAL HEALTH ADVISORY IS IN EFFECT FOR AREAS AROUND EAGLE RIDGE  COUNTY PARK IN UPPER KLAMATH LAKE IN KLAMATH 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 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 High Pressure Ridge (“Arch” shape) really heated us up Monday. If we’re lucky just a bit cooler today, but sorry not lucky today. The graphics for days 1-3 show a cold frontal system moving over the Pacific Northwest late today and Wednesday to begin the cooling. The graphics for days 3-7   Friday through Tuesday show the frontal activity for the Pacific Northwest through the period with a cold front sliding through Saturday and next Sunday.
  • NOTE: Monday was a HOT day and today too. Be prepared to drink plenty of water and if you can stay where it is cooled by air conditioning again today. Relief will come Wednesday..

Forecast for the South Willamette Valley including Eugene-Springfield:

  • Partly cloudy tonight,
  • Partly cloudy and cooler Wednesday, mostly clear Wednesday night,
  • Sunny and a bit warmer Thursday, clear at night,
  • Mostly sunny and a bit cooler Friday, then mostly clear Friday night.
  • lows 54-52 warming back to 54 Friday night highs 82-84 cooling back to 82 Friday.
  • Mostly sunny Saturday, mostly clear Saturday night,
  • Some AM clouds, mostly sunny and a bit cooler Sunday afternoon, mostly clear at night,
  • Mostly sunny and a bit warmer Monday, mostly clear Monday night,
  • Then mostly sunny and a bit warmer Tuesday.
  • highs 83-82 warming to 86 Tuesday lows 55-53. (Seasonal Averages high 84 low 52)

Forecast for the Umpqua Valley including Roseburg:

  • Partly cloudy tonight,
  • Some AM clouds, sunny and cooler Wednesday, clear Wednesday night,
  • Sunny and a bit warmer Thursday, mostly clear at night,
  • Mostly sunny Friday, then clear Friday night.
  • lows 60-56 warming to 58 Thursday night cooling to 54 Friday night highs 83-86.
  • Mostly sunny and a bit cooler Saturday, mostly clear Saturday night,
  • Mostly sunny Sunday, mostly clear at night,
  • Mostly sunny and a bit warmer Monday, clear Monday night,
  • Then sunny Tuesday.
  • highs 83-85 lows 59-55. (Seasonal Averages high 85 low 57).

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

  • Mostly cloudy tonight,
  • AM clouds, mostly sunny and a bit cooler Wednesday, mostly clear in the evening, partly cloudy late Wednesday night,
  • Some AM clouds, sunny Thursday afternoon, mostly clear in the evening, partly cloudy late at night,
  • Some AM clouds, sunny Friday, mostly clear in the evening, then partly cloudy with patchy fog late Friday night.
  • lows 56-53 warming back to 56 Thursday night and Friday night highs near 70.
  • Partly cloudy Saturday and Saturday night,
  • Partly cloudy Sunday, mostly clear at night,
  • Mostly sunny and a bit cooler Monday, mostly clear Monday night
  • Then mostly sunny Tuesday.
  • highs 69-67 lows 56-53. (Seasonal Averages high 66 low 54)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Partly cloudy with a slight (20%) chance of evening showers and thunderstorms, just partly cloudy late tonight,
  • Partly cloudy and cooler Wednesday, mostly clear at night,
  • Mostly sunny and a bit warmer Thursday, mostly clear Thursday night,
  • Mostly sunny and a bit warmer Friday, then mostly clear Friday night.
  • snow level above 8,000 ft. tonight, free air freezing level 15,000 ft. falling to 14,000 ft. Wednesday afternoon, 14,000 ft. Wednesday night and Thursday, 15,000 ft. Thursday night and Friday, then 16,000 ft. Friday night.
  • lows 52-48 warming to 50 Thursday night and Friday night 73-77.
  • Mostly sunny Saturday, mostly clear Saturday night,
  • Mostly sunny and a bit cooler Sunday, mostly clear at night,
  • Then mostly sunny and a bit warmer Monday and Tuesday, mostly clear Monday night.
  • free air freezing level 16,000 ft. Saturday and Saturday night, 15,000 ft. Sunday through Monday, 16,000 ft. Monday night, then 15,000 ft. Tuesday.
  • highs 76-73 warming to 77 Tuesday lows near 48.