Extreme Heat Warning
Status
New Event Active alertStart Time
Sat 08/23/2025 03:00 PM EDTEnd Time
Thu 08/28/2025 12:00 AM EDTSignificance
WarningImpacts
High impact
Locations Affected
Yakima, WA ∙ Kennewick, WA ∙ Pasco, WA ∙ Richland, WA ∙ Tieton, WA ∙ Granger, WA ∙ Wallula, WA ∙ Biggs Junction, OR ∙ Green Meadows, OR ∙ Bingen, WAFull Alert Message
URGENT - WEATHER MESSAGE National Weather Service Pendleton OR 1223 PM PDT Fri Aug 22 2025 ...EXTREME HEAT WARNING IN EFFECT FROM NOON SATURDAY TO 9 PM PDT WEDNESDAY... * WHAT...Dangerously hot conditions with temperatures up to 98 to 104 degrees expected. This will pose a major to locally extreme risk of heat-related illness. * WHERE...Portions of north central and northeast Oregon and central, south central, and southeast Washington. * WHEN...From noon Saturday to 9 PM PDT Wednesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...An alternative scenario is lingering cloud cover from possible thunderstorms from southern Oregon may result in lower than forecast afternoon temperatures or higher than forecast overnight low temperatures. 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.
Technical Header
ORZ041-044-507-508-510-WAZ024-026>029-521-523-232230- /O.UPG.KPDT.XH.A.0003.250823T1900Z-250828T0400Z/ /O.NEW.KPDT.XH.W.0002.250823T1900Z-250828T0400Z/ Eastern Columbia River Gorge of Oregon-Lower Columbia Basin of Oregon-Foothills of the Northern Blue Mountains of Oregon- Foothills of the Southern Blue Mountains of Oregon-North Central Oregon-Eastern Columbia River Gorge of Washington-Kittitas Valley- Yakima Valley-Lower Columbia Basin of Washington-Foothills of the Blue Mountains of Washington-Simcoe Highlands-Lower Slopes of the Eastern Washington Cascades Crest- Including the cities of Waitsburg, Dayton, Naches, Boardman, Yakima, Thorp, Cle Elum, Ellensburg, Athena, Condon, Fossil, Pendleton, Ione, Pilot Rock, Bickleton, Hermiston, Maupin, Sunnyside, Walla Walla, Appleton, The Dalles, White Salmon, Cliffdell, Arlington, Toppenish, Moro, Dufur, Tri-Cities, Goldendale, Prosser, Heppner, and Connell 1223 PM PDT Fri Aug 22 2025