August 19, 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
- AN EXCESSIVE HEAT WARNING IS IN EFFECT UNTIL 11 PM TONIGHT FOR THE EASTERN COLUMBIA RIVER GORGE OF OREGON.
- HEAT ADVISORY IS IN EFFECT UNTIL 11 PM TONIGHT FOR WALLOWA COUNTY, THE NORTHERN BLUE MOUNTAINS OF OREGON, THE SOUTHERN BLUE MOUNTAINS OF OREGON, THE OCHOCO, THE JOHN DAY HIGHLANDS, THE EASTERN COLUMBIA RIVER GORGE OF OREGON, THE LOWER COLUMBIA BASIN OF OREGON, THE FOOTHILLS OF THE NORTHERN BLUE MOUNTAINS OF OREGON, THE FOOTHILLS OF THE SOUTHERN BLUE MOUNTAINS OF OREGON, NORTH CENTRAL OREGON, CENTRAL OREGON, THE GRANDE RONDE VALLEY, AND THE JOHN DAY BASIN.
HEALTH ADVISORIES
- NOTE A CHANGE: A RECREATIONAL HEALTH ADVISORY IS IN EFFECT FOR ALL OF UPPER KLAMATH LAKE IN KLAMATH COUNTY INCLUDING SHOALWATER BAY 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 RECREATIONAL HEALTH ADVISORY FOR CRONE MILLER IN BENTON COUNTY DUE THE PRESENCE OF A CYANOBACTERIA (BLUE-GREEN ALGAE) BLOOM AND CYANOTOXINS ABOVE RECREATIONAL USE VALUES FOR HUMAN EXPOSURE HAS BEEN LIFTED. NOTE: OREGON HEALTH AUTHORITY ADVISES DOG OWNERS TO CONTINUALLY BE ALERT TO SIGNS OF CYANOBACTERIA BLOOMS, OR AREAS OF THE LAKE THAT LOOK SUSPICIOUS. BLOOMS CAN DEVELOP AND DISAPPEAR ON ANY BODY OF WATER AT ANY TIME, EVEN IN THE FALL AND WINTER IF CONDITIONS ARE FAVORABLE. ONLY A FRACTION OF WATER BODIES IN OREGON ARE MONITORED FOR CYANOBACTERIA, BLOOMS AND TOXINS DURING THE RECREATION SEASON, AND NO MONITORING OR SAMPLING IS PERFORMED ONCE RECREATION SEASON HAS ENDED. IT IS VERY IMPORTANT FOR PEOPLE TO BECOME FAMILIAR WITH SIGNS OF BLOOM, EXPOSURES, AND SYMPTOMS BY VISITING OHA’S CYANOBACTERIA HARMFUL ALGAE BLOOM WEBSITE AT: http://www.healthoregon.org/hab.
- 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) down in the Four Corners area of the West is strengthening bringing us some more heat. The graphics for days 1-3 show no frontal systems moving through or into Oregon. The graphics for days 3-7 Sunday through Thursday show a cold front moving over the Pacific Northwest next Monday.
Forecast for the South Willamette Valley including Eugene-Springfield:
- AM clouds and sun, sunny and a bit cooler this afternoon, mostly clear tonight,
- Some AM clouds, sunny and a bit warmer Saturday afternoon, mostly clear at night,
- Then partly cloudy Sunday and Sunday night.
- highs 83-88 lows near 55.
- Partly cloudy and a bit cooler Monday, mostly clear Monday night,
- Mostly sunny and a bit warmer Tuesday, mostly clear at night,
- Then mostly sunny and a bit warmer Wednesday and Thursday, clear Wednesday night.
- highs 84-95 lows 56-58. (Seasonal Averages high 84 low 51)
Forecast for the Umpqua Valley including Roseburg:
- AM clouds, sunny and cooler this afternoon, mostly clear tonight,
- Some AM clouds, sunny and a bit warmer Saturday, mostly clear at night,
- Partly cloudy and a bit warmer Sunday, then partly cloudy Sunday night.
- highs 85-90 lows near 59.
- Mostly sunny and a bit cooler Monday, mostly clear Monday night,
- Mostly sunny and a bit warmer Tuesday and Wednesday, mostly clear both nights,
- Then sunny and a bit warmer Thursday.
- highs 86-95 lows 59-62. (Seasonal Averages high 86 low 57).
Forecast for the Oregon Coast including Coos Bay and North Bend:
- Patchy AM drizzle and dense fog, mostly cloudy and a bit warmer this afternoon, mostly cloudy tonight,
- Partly cloudy with patchy AM inland fog, sunny Saturday afternoon, partly cloudy in the evening, mostly cloudy late at night,
- Partly cloudy Sunday, partly cloudy in the evening, then mostly cloudy with a slight (20%) chance of showers late Sunday night.
- highs near 76 lows 59-57.
- Partly cloudy and a bit warmer Monday, partly cloudy Monday night,
- Sunny Tuesday, mostly clear in the evening, partly cloudy late at night,
- Some AM clouds, sunny Wednesday, partly cloudy Wednesday,
- Then partly cloudy Thursday.
- highs near 77 lows near 59. (Seasonal Averages high 67 low 54)
Forecast for the Northern Oregon Cascades including Willamette Pass:
- Some AM clouds, mostly sunny and a bit cooler this afternoon, mostly clear tonight,
- Mostly sunny and a bit warmer Saturday, mostly clear at night,
- AM sun, then partly cloudy Sunday afternoon and Sunday night.
- free air freezing level 14,000 ft. rising to 15,000 ft. this afternoon, 15,000 ft. tonight, 16,000 ft. Saturday and Saturday night, then 15,000 ft. Sunday and Sunday night.
- highs 76-80 lows 49-52 cooling to 50 Sunday night.
- Mostly sunny and a bit cooler Monday, mostly clear Monday night,
- Then mostly sunny and a bit warmer Tuesday, Wednesday, and Thursday, mostly clear each night,
- free air freezing level 14,000 ft. Monday, 15,000 ft. Monday night through Wednesday, then 16,000 ft. Wednesday night and Thursday.
- highs 72-84 lows 49-55.
_____
- For all of your Eugene-Springfield and Lane County News, Weather, and Sports go to: EugeneDailyNews.com
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Mostly clear again tonight, then sunshine and slightly cooler for your Friday.
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- 7/15 Plenty of sunshine heading our way today to end the workweek.
- Mostly clear again tonight, then sunshine and slightly cooler for your Friday.
- 7/14 Sunshine and a bit warmer for your Thursday.
- Clear overnight, sunny and pleasant tomorrow for your Thursday.
- 7/13 A break from the heat today for your “Hump Day.”
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Forecast for the Oregon Coast including Coos Bay and North Bend:
- Becoming mostly cloudy late tonight,
- Some AM clouds, sunny and a bit warmer Friday afternoon, clear in the evening, partly cloudy late Friday night,
- Mostly cloudy start, partly cloudy and slightly cooler Saturday afternoon, mostly clear at night,
- Mostly sunny Sunday, then mostly clear Sunday night.
- lows 54-56 cooling back to 54 Sunday night highs 70-69.
- Mostly sunny and a bit warmer Monday, mostly clear Monday night,
- Partly cloudy and slightly cooler Tuesday, partly cloudy at night,
- Then partly cloudy Wednesday through Thursday.
- highs 73-72 lows 54-56 cooling back to 54 Wednesday night. (Seasonal Averages high 66 low 54)
Forecast for the Northern Oregon Cascades including Willamette Pass:
- Mostly clear tonight,
- Mostly sunny and a bit cooler Friday, clear Friday night,
- Sunny and a bit warmer Saturday, mostly clear at night,
- Some AM clouds, mostly sunny and a bit cooler Sunday, then clear Sunday night.
- free air freezing level 15,000 ft. falling to 14,000 ft. late tonight, 14,000 ft. rising to 15,000 ft. Friday afternoon, 15,000 ft. Friday night through Sunday, then 16,000 ft. Sunday night.
- lows 49-47 highs 74-72 warming back to 74 Sunday.
- Sunny and a bit warmer Monday, clear Monday night,
- Sunny Tuesday, mostly clear at night,
- Then mostly sunny and a bit cooler Wednesday and Thursday, mostly clear Wednesday night.
- free air freezing level 16,000 ft. Monday through Thursday.
- highs 80-75 lows 53-50.