Tim Chuey Weather

July 27, 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 9 PM SATURDAY FOR THE GREATER PORTLAND METRO AREA, THE UPPER HOOD RIVER VALLEY, THE WESTERN COLUMBIA RIVER GORGE, THE CENTRAL COLUMBIA RIVER GORGE, THE CENTRAL WILLAMETTE VALLEY .
AN EXCESSIVE HEAT WARNING IS IN EFFECT UNTIL 11 PM SATURDAY FOR THE EASTERN COLUMBIA RIVER GORGE OF OREGON, THE LOWER COLUMBIA BASIN OF OREGON, THE JOHN DAY BASIN, THE OCHOCO, THE GRANDE RONDE VALLEY, THE JOHN DAY HIGHLANDS, THE FOOTHILLS OF THE NORTHERN BLUE MOUNTAINS OF OREGON, THE FOOTHILLS OF THE SOUTHERN BLUE MOUNTAINS OF OREGON, NORTH CENTRAL OREGON, AND CENTRAL OREGON, THE NORTHERN BLUE MOUNTAINS OF OREGON, THE SOUTHERN BLUE MOUNTAINS OF OREGON, AND THE NORTHWEST BLUE MOUNTAINS.
AN EXCESSIVE HEAT WARNING IS IN EFFECT UNTIL 11 PM FRIDAY FOR CENTRAL DOUGLAS COUNTY, THE EASTERN DOUGLAS COUNTY FOOTHILLS AND THE SOUTH CENTRAL OREGON CASCADES, EASTERN CURRY COUNTY AND JOSEPHINE COUNTY, AND JACKSON COUNTY, THE EASTERN DOUGLAS COUNTY FOOTHILLS, AND THE SOUTH CENTRAL OREGON CASCADES.
AN EXCESSIVE HEAT WARNING IS IN EFFECT UNTIL 9 PM SATURDAY FOR THE SISKIYOU MOUNTAINS, THE SOUTHERN OREGON CASCADES, AND THE KLAMATH BASIN.
A HEAT ADVISORY IS IN EFFECT UNTIL 11 PM FRIDAY FOR WALLOWA COUNTY AND THE EAST SLOPES OF THE OREGON CASCADES.
A HEAT ADVISORY IS IN EFFECT UNTIL 9 PM SATURDAY BELOW 4,000 FT. FOR THE NORTHERN OREGON CASCADES AND THE CASCADES IN LANE COUNTY.
A HEAT ADVISORY IS IN EFFECT UNTIL 9 PM SATURDAY FOR NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY.
A HEAT ADVISORY IS IN EFFECT UNTIL 11 PM FRIDAY FOR CENTRAL DOUGLAS COUNTY.
A HEAT ADVISORY IS IN EFFECT UNTIL 9 PM SATURDAY FOR THE NORTHERN OREGON CASCADE FOOTHILLS, THE CASCADE FOOTHILLS IN LANE COUNTY, THE LOWER COLUMBIA, AND THE SOUTH WILLAMETTE VALLEY.
AN AIR QUALITY ALERT IS IN EFFECT UNTIL 9 PM SATURDAY FOR THE LOWER COLUMBIA, THE GREATER PORTLAND METRO AREA, THE CENTRAL WILLAMETTE VALLEY, AND THE SOUTH WILLAMETTE VALLEY.

HEALTH ADVISORIES

THE PUBLIC HEALTH ADVISORY ISSUED FOR UNSAFE LEVELS OF FECAL BACTERIA IN OCEAN WATERS AT D RIVER BEACH IN LINCOLN COUNTY HAS BEEN LIFTED.
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

The Upper Level High Pressure Ridge (“Arch” shape) strengthens again for warmup that is a real heat wave. The graphics for days 1-3 show a frontal system attempting to move southward into Oregon. The graphics for days 3-7 Saturday through Wednesday show no frontal activity for the Pacific Northwest through the period, however a front approaches from the northwest Monday and then moves in next Tuesday and Tuesday night.
NOTE: AN AIR QUALITY ALERT IS IN EFFECT UNTIL 9 PM SATURDAY FOR THE LOWER COLUMBIA, THE GREATER PORTLAND METRO AREA, THE CENTRAL WILLAMETTE VALLEY, AND THE SOUTH WILLAMETTE VALLEY.

Forecast for the South Willamette Valley including Eugene-Springfield:

Mostly sunny, just a little bit cooler but still Very Hot today, mostly clear tonight,
Mostly sunny and a bit warmer and still hot Thursday, clear Thursday night,
Mostly sunny Friday, then clear Friday night.
highs 96-98 lows 60-62.
Mostly sunny Saturday, mostly clear Saturday night,
Some AM clouds, mostly sunny and a bit cooler Sunday afternoon and Monday afternoon, mostly clear both nights,
Then partly cloudy and a bit cooler Tuesday.
highs 98-95 lows near 58. (Seasonal Averages high 86 low 53)

Forecast for the Umpqua Valley including Roseburg:

Sunny and a bit cooler but still Hot today, clear with a slight (20%) chance of evening thunderstorms, just clear late tonight,
Sunny and a bit cooler but still Hot Thursday, clear at night,
Mostly sunny and Hot Friday, then mostly clear Friday night.
highs 98-97 lows 63-64.
Mostly sunny and a bit cooler Saturday, mostly clear Saturday night,
Mostly sunny and a bit cooler Sunday and Monday, mostly clear both nights,
Then partly cloudy and a bit cooler Tuesday.
highs 96-85 lows 63-60. (Seasonal Averages high 88 low 59).

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

Cloudy start with patchy coastal fog, partly cloudy and a bit warmer this afternoon, mostly clear this evening, cloudy late tonight,
Some AM clouds, sunny Thursday afternoon, partly cloudy in the evening, and mostly cloudy late night,
Partly cloudy and a bit cooler Friday, then partly cloudy Friday night.
highs 74-72 lows near 56.
Partly cloudy and a bit warmer Saturday and in the evening, mostly cloudy late Saturday night,
Partly cloudy Sunday and Monday, partly cloudy both nights,
Then partly cloudy and a bit cooler Tuesday.
highs 74-72 lows near 56. (Seasonal Averages high 67 low 54)

Forecast for the Northern Oregon Cascades including Willamette Pass:

Some AM clouds, mostly sunny and hot this afternoon, mostly clear tonight,
Sunny and still hot Thursday, mostly clear at night,
Sunny Friday, then mostly clear Friday night.
free air freezing level 16,000 ft. today through Friday night.
highs near 89 lows 63-64.
Mostly sunny and a bit cooler Saturday and Sunday, mostly clear both nights,
Mostly sunny and a bit cooler Monday, mostly clear Monday night,
AM sun, then partly cloudy and a bit cooler Tuesday afternoon.
free air freezing level 16,000 ft. Saturday through Monday, then 15,000 ft. Monday night.
highs 90-82 lows 63-56.

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 actual weather will conform to the projected forecast.

_____

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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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.

Tim Chuey Weather

ADVISORIES

HEALTH ADVISORIES

THE WEATHER PATTERN

Forecast for the South Willamette Valley including Eugene-Springfield:

Forecast for the Umpqua Valley including Roseburg:

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

Forecast for the Northern Oregon Cascades including Willamette Pass:

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

Forecast for the Northern Oregon Cascades including Willamette Pass: