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February 4, 2024

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 WEATHER ADVISORY IS IN EFFECT FROM 10 AM UNTIL 10 PM TODAY ABOVE 3,500 FT. FOR NORTHERN AND EASTERN KLAMATH COUNTY AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY.
  • A WIND ADVISORY IS IN EFFECT FROM 10 AM TODAY UNTIL 7 AM MONDAY FOR JACKSON COUNTY.

HEALTH ADVISORIES

  • A PUBLIC HEALTH ADVISORY IS IN EFFECT FOR UNSAFE LEVELS OF FECAL BACTERIA IN OCEAN WATERS AT BEVERLY 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, THE ELDERLY, AND THOSE WITH A COMPROMISED IMMUNE SYSTEM SHOULD USE EXTRA CAUTION AS THEY ARE MORE VULNERABLE TO TO ILLNESSES FROM WATERBORNE BACTERIA. 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.
  • A RECREATIONAL USE HEALTH ADVISORY HAS BEEN EXPANDED FOR THE AREA FROM THE ROSS ISLAND LAGOON TO RIVERPLACE MARINA IN MULTNOMAH COUNTY DUE TO THE PRESENCE OF A CYANOBACTERIA BLOOM. PEOPLE SHOULD AVOID SWIMMING AND HIGH SPEED WATER ACTIVITIES, SUCH AS WATER SKIING OR POWER BOATING, IN AREAS OF THE LAKE AND SLOUGH WHERE BLOOMS ARE, AS THE MAJOR ROUTE OF EXPOSURE IS INGESTION OF WATER. TOXINS ARE NOT ABSORBED THROUGH THE SKIN, HOWEVER, THOSE WITH SKIN SENSITIVITIES MAY GET A PUFFY RED RASH. THE OREGON HEALTH AUTHORITY ENCOURAGES PEOPLE TO VISIT THE AREA AND ENJOY ACTIVITIES SUCH AS CATCH AND RELEASE FISHING, CAMPING, HIKING, BILKING, PICNICKING, BIRD WATCHING, CANOEING, AND KAYAKING. BOATING IS SAFE AS LONG AS SPEEDS DO NOT CREATE EXCESSIVE WATER SPRAY. SPRAYS COULD LEAD TO THE RISK OF INHALING CYANOTOXINS. DRINKING WATER FROM THE LAKE IS ESPECIALLY DANGEROUS.
  • A RECREATIONAL USE HEALTH ADVISORY IS IN EFFECT FOR THE WILLAMETTE RIVER FROM ROSS ISLAND DOWNSTREAM (NORTH) TO THE AREA NEAR CATHEDRAL PARK IN PORTLAND, IN MULTNOMAH COUNTY DUE TO THE PRESENCE OF A CYANOBACTERIA BLOOM. PEOPLE SHOULD AVOID SWIMMING AND HIGH SPEED WATER ACTIVITIES, SUCH AS WATER SKIING OR POWER BOATING, IN AREAS OF THE LAKE AND SLOUGH WHERE BLOOMS ARE, AS THE MAJOR ROUTE OF EXPOSURE IS INGESTION OF WATER. TOXINS ARE NOT ABSORBED THROUGH THE SKIN, HOWEVER, THOSE WITH SKIN SENSITIVITIES MAY GET A PUFFY RED RASH. THE OREGON HEALTH AUTHORITY ENCOURAGES PEOPLE TO VISIT THE AREA AND ENJOY ACTIVITIES SUCH AS FISHING, CAMPING, HIKING, BILKING, PICNICKING, BIRD WATCHING, CANOEING, AND KAYAKING. BOATING IS SAFE AS LONG AS SPEEDS DO NOT CREATE EXCESSIVE WATER SPRAY. SPRAYS COULD LEAD TO THE RISK OF INHALING CYANOTOXINS.DO NOT DRINK THE WATER.
  • A RECREATIONAL USE HEALTH ADVISORY CONTINUES IN EFFECT FOR ARRONS LAKE, BUT HAS BEEN LIFTED FOR PETE’S SLOUGH AND STURGEON LAKE ON SAUVIE ISLAND DUE TO THE PRESENCE OF A CYANOBACTERIA BLOOM. PEOPLE SHOULD AVOID SWIMMING AND HIGH SPEED WATER ACTIVITIES, SUCH AS WATER SKIING OR POWER BOATING, IN AREAS OF THE LAKE AND SLOUGH WHERE BLOOMS ARE, AS THE MAJOR ROUTE OF EXPOSURE IS INGESTION OF WATER. TOXINS ARE NOT ABSORBED THROUGH THE SKIN, HOWEVER, THOSE WITH SKIN SENSITIVITIES MAY GET A PUFFY RED RASH. THE OREGON HEALTH AUTHORITY ENCOURAGES PEOPLE TO VISIT THE AREA AND ENJOY ACTIVITIES SUCH AS FISHING, CAMPING, HIKING, BILKING, PICNICKING, BIRD WATCHING, CANOEING, AND KAYAKING. BOATING IS SAFE AS LONG AS SPEEDS DO NOT CREATE EXCESSIVE WATER SPRAY. SPRAYS COULD LEAD TO THE RISK OF INHALING CYANOTOXINS.
  • A RECREATIONAL USE HEALTH ADVISORY IS IN EFFECT FOR AGENCY LAKE AND EXTENDED THE ADVISORY FOR THE SOUTHERN PORTION OF UPPER KLAMATH LAKE, FROM HOWARD’S BAY SOUTH TO THE LINK RIVER DAM  IN KLAMATH COUNTY DUE TO THE PRESENCE OF A CYANOBACTERIA BLOOM. PEOPLE SHOULD AVOID SWIMMING AND HIGH SPEED WATER ACTIVITIES, SUCH AS WATER SKIING OR POWER BOATING, IN AREAS OF THE RESERVOIR WHERE BLOOMS ARE, AS THE MAJOR ROUTE OF EXPOSURE IS INGESTION OF WATER. TOXINS ARE NOT ABSORBED THROUGH THE SKIN, HOWEVER, THOSE WITH SKIN SENSITIVITIES MAY GET A PUFFY RED RASH. THE OREGON HEALTH AUTHORITY ENCOURAGES PEOPLE TO VISIT AND ENJOY ACTIVITIES SUCH AS FISHING, CAMPING, HIKING, BILKING, PICNICKING, BIRD WATCHING, CANOEING, AND KAYAKING. BOATING IS SAFE AS LONG AS SPEEDS DO NOT CREATE EXCESSIVE WATER SPRAY. SPRAYS COULD LEAD TO THE RISK OF INHALING CYANOTOXINS.
  • 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.

THE WEATHER PATTERN

An Atmospheric River has been pumping a lot of moisture into California, but not luckily into Oregon  The graphics for days 1-3  show the complex frontal system moving through Oregon Monday. The graphics for days 3-7   Wednesday through Sunday show complex frontal systems  approaching the Pacific Northwest.

Note: A check on the many groundhog predictions Friday shows they all predict an early Spring, But Spencer Butte Bob, My personal Groundhog, did see his shadow Friday morning (sunshine and clouds) in Eugene predicting six more weeks of winter. If our current weather indicates what the rest of Winter will be like then I’ll take it.

Forecast For The South Willamette Valley Including Eugene-Springfield:

  • Patchy AM fog, a mix of clouds and sun with a good (50%) chance of rain and a bit cooler this afternoon (under 0.10 in. of rain possible), cloudy with a good (50%) chance of evening rain, showers likely (70%) tonight with patchy fog late (0.10 in. of rain possible),
  • Mostly cloudy with patchy AM fog and showers likely (70%), a good (50%) chance of showers Monday afternoon (0.10 in. of rain possible), mostly cloudy with a good (50%) chance of showers with patchy fog late at night (under o.10 in. of rain possible),
  • Patchy AM fog, mostly cloudy with a (40%) chance of showers Tuesday, then mostly cloudy with a good (50%) chance of rain with patchy fog late Tuesday night,
  • highs near 49 lows 39-36.
  • Mostly cloudy with a good (50%) chance of AM rain, a bit cooler with a good (50%) chance of showers Wednesday afternoon, a good (50%) chance of showers Wednesday night,
  • Mostly cloudy with a good (50%) chance of AM showers, a bit cooler with showers likely (70%) Thursday afternoon, showers likely (70%) at night,
  • Mostly cloudy with AM showers likely (70%), a good (50%) chance of showers and a bit warmer Friday afternoon and evening, showers likely (70%) with patchy fog late Friday night,
  • Then mostly cloudy and a bit warmer with showers likely (70%) Saturday.
  • highs 47-45 warming to 49 Saturday lows 33-35. (seasonal averages high 50 low 35)

Forecast for the Umpqua Valley including Roseburg:

  • Mostly cloudy and cooler with a good (50%) chance of rain and snow today (under 0.10 in. of rain possible, snow level 1,500 ft. rising to 3,000 ft.), a good (50%) chance of evening rain, showers likely (70%) late tonight (under 0.10 in. of rain possible),
  • Mostly cloudy with showers likely (70%) and a bit warmer Monday (0.10 in. of rain possible, snow level 3,500 ft.), a (40%) chance of evening showers, a (40%) chance of rain and snow showers late at night (under 0.10 in. of rain possible),
  • Then mostly cloudy with a slight (20%) chance of rain and snow showers and a bit cooler Tuesday and Tuesday night.
  • highs 46-50 cooling to 48 Tuesday lows 40-38.
  • Mostly cloudy with a (40%) chance of rain and snow showers Wednesday, a (40%) chance of rain and snow showers Wednesday night,
  • Mostly cloudy with a good (50%) chance of AM rain and snow showers, a rain and snow showers Thursday afternoon, rain and snow showers likely (70%) Thursday night,
  • Mostly cloudy and a bit warmer with rain and snow showers likely (70%) Friday and Friday night,
  • Then mostly cloudy and a bit warmer with rain and snow showers likely (70%) Saturday.
  • highs 48-50 lows 37-35 warming  back to 37 Friday night (seasonal averages high 52  low 37).

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

  • Mostly cloudy with a (40%) chance of coastal rain and a bit cooler today while a (40%) chance of inland AM rain and inland rain likely (70%) and a bit cooler this afternoon (under 0.10 in. of rain possible, AM snow level 2,000 ft.), a good (50%) of evening coastal rain while inland evening rain likely (70%), showers likely (70%) late tonight (0.10 in. of rain possible),
  • Mostly cloudy with showers likely (70%) Monday (0.10 in. of rain possible), a (40%) chance of showers at night (under 0.10 in. of rain possible),
  • Then mostly cloudy with a (30%) chance of showers Tuesday and Tuesday night.
  • highs near 53 lows 42-40.
  • Mostly cloudy with a (40%) chance of showers Wednesday and Wednesday night,
  • Mostly cloudy with showers likely (70%) Thursday and at night,
  • Mostly cloudy and a bit warmer with showers likely (70%) Friday, showers likely (70%) Friday night,
  • Then mostly cloudy with showers likely (70%) Saturday.
  • highs near 53 lows near 39. (seasonal averages high 54 low 41)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Mostly cloudy with a good (50%) chance of AM snow and a good (50%) chance of rain and a bit cooler this afternoon (0.10 in. of rain possible, 1 in. of snow possible) and windy (Pass Wind: E 20-30 mph gusts to 50 mph), mostly cloudy with snow and rain tonight (0.25 in. of rain possible, 2 in. of snow possible) and breezy (Pass Wind: E 15-25 mph gusts to 45 mph),
  • Mostly cloudy and a bit warmer with showers likely (70%) and snow showers Monday, a good (50%) chance of rain and snow at night,
  • A mix of clouds and sun with a good (50%) chance of snow and rain showers and a bit cooler Tuesday, then mostly cloudy with a good (50%) chance of snow and rain Tuesday night.
  • snow level 2,500 ft. today, 4,000 ft. tonight and Monday, then 3,000 ft. Monday night through Tuesday night.
  • highs 33-36 cooling to 34 Monday lows 28-23.
  • Mostly cloudy with a good (50%) chance of AM snow, a bit cooler with a good (50%) chance of snow and rain showers Wednesday afternoon, mostly cloudy with a good (50%) chance of snow and rain showers Wednesday night,
  • Mostly cloudy with a good (50%) chance of AM snow and rain showers, a bit cooler with snow and rain showers Thursday afternoon, snow and rain showers likely (70%)  at night,
  • Mostly cloudy with snow and rain showers likely (70%) Friday and Friday night,
  • Then mostly cloudy and a bit warmer with rain and snow showers likely (70%) Saturday.
  • snow level 2,500 ft. Wednesday through Thursday, 3,000 ft. Thursday night and Friday, 3,500 ft. Friday night, then 4,000 ft. Saturday.
  • highs 30-34 lows near 22.