317
WWUS76 KPDT 102011
NPWPDT

URGENT - WEATHER MESSAGE
National Weather Service Pendleton OR
111 PM PDT Sun Aug 10 2025

ORZ041-044-507-WAZ024-026>029-112300-
/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, Naches, Sunnyside, Thorp,
Hermiston, Waitsburg, Athena, Tri-Cities, Toppenish, White
Salmon, Dayton, Pilot Rock, Connell, Ellensburg, Boardman, Walla
Walla, Ione, Pendleton, Prosser, Yakima, and The Dalles
111 PM PDT Sun Aug 10 2025

...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 10 PM PDT TUESDAY...

* WHAT...Dangerously hot conditions with temperatures 100 to 103
  degrees expected, with the hottest conditions Monday and Tuesday.
  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.

&&

$$

ORZ505-508-510-511-WAZ521-112300-
/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 Moro, Condon, Goldendale, Dayville,
Redmond, Mitchell, Prineville, Madras, Maupin, Bend, Bickleton,
Dufur, Heppner, Spray, John Day, Fossil, and Monument
111 PM PDT Sun Aug 10 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, especially on Monday.

* 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.

&&

$$

LN