Extreme Heat Warning
URGENT - WEATHER MESSAGE
National Weather Service Portland OR
155 PM PDT Mon Aug 11 2025
ORZ109>125-WAZ205>207-209-210-121200-
/O.CON.KPQR.XH.W.0001.000000T0000Z-250813T0500Z/
Tualatin Valley-Portland West Hills and Chehalem Mountain-Inner
Portland Metro-East Portland Metro-Outer Southeast Portland Metro-
West Central Willamette Valley-East Central Willamette Valley-
Benton County Lowlands-Linn County Lowlands-Lane County Lowlands-
West Columbia River Gorge of Oregon above 500 ft-West Columbia
River Gorge I-84 Corridor-Upper Hood River Valley-Central
Columbia River Gorge I-84 Corridor-Clackamas County Cascade
Foothills-Cascade Foothills of Marion and Linn Counties-Lane
County Cascade Foothills-North Clark County Lowlands-Inner
Vancouver Metro-East Clark County Lowlands-West Columbia River
Gorge SR 14 Corridor-Central Columbia River Gorge SR 14 Corridor-
Including the cities of Vancouver, North Bonneville, Boring,
McMinnville, Silverton, Rooster Rock, Junction City, Parkdale,
Rhododendron, Stevenson, Happy Valley, Chehalem Mountain,
Sellwood, Corbett, La Center, Estacada, Creswell, Salem,
Sherwood, Wilsonville, Multnomah Falls, Eagle Creek, Molalla,
Carson, Hood River, Mill City, Beacon Rock SP, Stayton, Salmon
Creek, Sandy, Cape Horn, Keizer, Portland, Tigard, Odell, Sylvan
Hill, Underwood, Welches, Springfield, Dallas, Skyline Drive,
Vida, Washougal, Cottage Grove, Silver Falls, Hillsboro,
Evergreen, Woodburn, Forest Grove, Bonneville, Albany, Lebanon,
Harrisburg, Cherryville, Philomath, Sheridan, McKenzie Bridge,
Monmouth, Newberg, Detroit, Brightwood, Oakridge, Hockinson,
Oregon City, Lake Oswego, Camas, Cascade Locks, Brownsville,
Battle Ground, Wyeth, Troutdale, Monroe, Gresham, Rockcreek,
Eugene, Brush Prairie, Corvallis, Fairview, and Ridgefield
155 PM PDT Mon Aug 11 2025
...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 10 PM PDT TUESDAY...
* WHAT...Dangerously hot conditions with temperatures of 97 to 105
degrees. Overnight temperatures of 63 to 70 degrees.
* WHERE...Greater Portland/Vancouver Metro, Western and Central
Columbia River Gorge, the Corbett area and the Hood River Valley,
Central and Southern Willamette Valley, and Foothills of the
Northern and Central Oregon Cascades.
* WHEN...Until 10 PM PDT Tuesday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events.
* ADDITIONAL DETAILS...Overnight conditions will begin to cool on
Tuesday night into Wednesday.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in a cool place during the heat of the
day, stay out of the sunshine, and check up on relatives and
neighbors. For those without air conditioning, use fans to keep air
moving. Keeps windows closed during the day and open at night,
unless air quality is degraded due to wildfire smoke.
Do not leave young children and pets in unattended vehicles. Car
interiors will reach lethal temperatures in a matter of minutes.
Monitor the latest forecasts and warnings for updates.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Pendleton OR
152 PM PDT Mon Aug 11 2025
ORZ505-508-510-511-WAZ521-130500-
/O.CON.KPDT.XH.W.0001.000000T0000Z-250813T0500Z/
John Day Basin-Foothills of the Southern Blue Mountains of Oregon-
North Central Oregon-Central Oregon-Simcoe Highlands-
Including the cities of Bickleton, Madras, Redmond, Dayville,
Goldendale, John Day, Mitchell, Dufur, Prineville, Spray, Condon,
Fossil, Maupin, Monument, Moro, Bend, and Heppner
152 PM PDT Mon Aug 11 2025
...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 10 PM PDT TUESDAY...
* WHAT...Dangerously hot conditions with temperatures 99 to 102
degrees expected. This will pose a moderate to locally major risk
of heat-related illness.
* WHERE...In Oregon, Central Oregon, John Day Basin, Foothills of
the Southern Blue Mountains of Oregon, and North Central Oregon.
In Washington, Simcoe Highlands.
* WHEN...Until 10 PM PDT Tuesday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors. Young children and
pets should never be left unattended in vehicles under any
circumstances.
Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when possible.
To reduce risk during outdoor work, the Occupational Safety and
Health Administration recommends scheduling frequent rest breaks in
shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an
emergency! Call 9 1 1.
For sheltering information and other human services in your area,
dial 2 1 1 during business hours or visit 211info.org for Oregon or
wa211.org for Washington anytime.
&&
$$
MC
URGENT - WEATHER MESSAGE
National Weather Service Pendleton OR
152 PM PDT Mon Aug 11 2025
ORZ041-044-507-WAZ024-026>029-130500-
/O.CON.KPDT.XH.W.0001.000000T0000Z-250813T0500Z/
Eastern Columbia River Gorge of Oregon-Lower Columbia Basin of
Oregon-Foothills of the Northern Blue Mountains of Oregon-Eastern
Columbia River Gorge of Washington-Kittitas Valley-Yakima Valley-
Lower Columbia Basin of Washington-Foothills of the Blue
Mountains of Washington-
Including the cities of Arlington, Toppenish, Sunnyside,
Waitsburg, Athena, Pilot Rock, Naches, Ione, Dayton, The Dalles,
Thorp, Ellensburg, Pendleton, Walla Walla, Yakima, Connell,
Boardman, Prosser, White Salmon, Tri-Cities, and Hermiston
152 PM PDT Mon Aug 11 2025
...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 10 PM PDT TUESDAY...
* WHAT...Dangerously hot conditions with temperatures 100 to 103
degrees expected. This will pose a moderate to major risk of
heat-related illness.
* WHERE...Eastern Columbia River Gorge of Oregon and Washington,
Lower Columbia Basin of Oregon and Washington, Foothills of the
Northern Blue Mountains of Oregon, Kittitas Valley, Yakima Valley,
and Foothills of the Blue Mountains of Washington.
* WHEN...Until 10 PM PDT Tuesday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events. Extreme heat will significantly increase the
risk of heat-related illnesses for much of the population,
especially those who are heat sensitive and those without
effective cooling or adequate hydration.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors. Young children and
pets should never be left unattended in vehicles under any
circumstances.
Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when possible.
To reduce risk during outdoor work, the Occupational Safety and
Health Administration recommends scheduling frequent rest breaks in
shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an
emergency! Call 9 1 1.
For sheltering information and other human services in your area,
dial 2 1 1 during business hours or visit 211info.org for Oregon or
wa211.org for Washington anytime.
&&
$$
