057 WWUS86 KPDT 221231 RFWPDT URGENT - FIRE WEATHER MESSAGE National Weather Service Pendleton OR 531 AM PDT Sat Aug 22 2026 ...WIDESPREAD BREEZY WESTERLY WINDS AND LOW RELATIVE HUMIDITY TODAY... ...HIGH-BASED SHOWERS AND THUNDERSTORMS THROUGH THIS AFTERNOON ALONG THE WASHINGTON CASCADES AND BLUE MOUNTAINS... .An approaching low-pressure system will bring widespread breezy westerly winds through the Cascade gaps, across the Columbia Basin, and into portions of the Blue Mountains today. Coupled with low relative humidity, this will lead to critical fire weather conditions. Moreover, high-based showers and thunderstorms are forecast, with the best chances of abundant lightning through the remainder of this morning along the Washington Cascades and this afternoon for the northeast Blue Mountains. ORZ691-703-WAZ690-691-221915- /O.CON.KPDT.FW.W.0020.260822T1900Z-260823T0500Z/ Lower Columbia Basin of Oregon-Warm Springs Reservation- Kittitas Valley-Lower Columbia Basin of Washington- 531 AM PDT Sat Aug 22 2026 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 10 PM PDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES OR691, OR703, WA690, AND WA691... * AFFECTED AREA...Fire Weather Zones 690 Kittitas Valley, 691 Lower Columbia Basin of Oregon, 691 Lower Columbia Basin of Washington and 703 Warm Springs Reservation. * TIMING...From noon today to 10 PM PDT this evening. * WINDS...West 15 to 25 mph with gusts of 25 to 45 mph. * RELATIVE HUMIDITY...15 to 25 percent in the afternoon. * IMPACTS...Any fire that develops will catch and spread quickly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ ORZ696-698-700-221915- /O.CON.KPDT.FW.W.0020.260822T1900Z-260823T0500Z/ John Day Valley-Southern Blue Mountains- Central Mountains of Oregon- 531 AM PDT Sat Aug 22 2026 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 10 PM PDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES OR696, OR698, AND OR700... * AFFECTED AREA...Fire Weather Zones 696 John Day Valley, 698 Southern Blue Mountains and 700 Central Mountains of Oregon. * TIMING...From noon today to 10 PM PDT this evening. * WINDS...West 10 to 20 mph with gusts of 25 to 35 mph. * RELATIVE HUMIDITY...10 to 20 percent in the afternoon. * IMPACTS...Any fire that develops will catch and spread quickly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ ORZ693-WAZ693-221915- /O.CON.KPDT.FW.W.0020.260822T1700Z-260823T0300Z/ Canyon Grasslands of Wallowa County- Southeast Washington Grande Ronde Valley- 531 AM PDT Sat Aug 22 2026 ...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 8 PM PDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES OR693 AND WA693... * AFFECTED AREA...Fire Weather Zones 693 Canyon Grasslands of Wallowa County and 693 Southeast Washington Grande Ronde Valley. * TIMING...From 10 AM this morning to 8 PM PDT this evening. * WINDS...Southwest 10 to 20 mph with gusts of 20 to 30 mph, shifting to the northwest 10 to 20 mph with gusts of 20 to 30 mph late afternoon and evening. * RELATIVE HUMIDITY...10 to 20 percent late morning and afternoon. * IMPACTS...Any fire that develops will catch and spread quickly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ WAZ695-221900- /O.CON.KPDT.FW.W.0020.000000T0000Z-260822T1900Z/ East Washington South Central Cascade Mountains- 531 AM PDT Sat Aug 22 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL NOON PDT TODAY FOR ABUNDANT LIGHTNING FOR FIRE WEATHER ZONE WA695... * AFFECTED AREA...Fire Weather Zone 695 East Washington South Central Cascade Mountains. * TIMING...Until noon PDT today. * THUNDERSTORMS...Isolated to scattered coverage with abundant lightning. * OUTFLOW WINDS...Gusty, erratic winds up to 40 mph. * IMPACTS...Any fire that develops will catch and spread quickly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ ORZ692-WAZ692-221915- /O.CON.KPDT.FW.W.0020.260822T1800Z-260823T0600Z/ Northern Blue Mountains of Oregon-Blue Mountains of Washington- 531 AM PDT Sat Aug 22 2026 ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 11 PM PDT THIS EVENING FOR ABUNDANT LIGHTNING FOR FIRE WEATHER ZONES OR692 AND WA692... * AFFECTED AREA...Fire Weather Zones 692 Northern Blue Mountains of Oregon and 692 Blue Mountains of Washington. * TIMING...From 11 AM this morning to 11 PM PDT this evening. * THUNDERSTORMS...Isolated to scattered coverage with abundant lightning. * OUTFLOW WINDS...Gusty, erratic winds of 40 to 60 mph. * IMPACTS...Any fire that develops will catch and spread quickly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$