WWUS86 KPDT 221857 RFWPDT URGENT - FIRE WEATHER MESSAGE National Weather Service Pendleton OR 1157 AM PDT Sat Aug 22 2026 ...WIDESPREAD BREEZY WESTERLY WINDS AND LOW RELATIVE HUMIDITY TODAY... ...HIGH-BASED SHOWERS AND THUNDERSTORMS THIS AFTERNOON FOR THE NORTHERN 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 this afternoon for the northeast Blue Mountains. WAZ695-222000- /O.EXP.KPDT.FW.W.0020.000000T0000Z-260822T1900Z/ East Washington South Central Cascade Mountains- 1157 AM PDT Sat Aug 22 2026 ...RED FLAG WARNING WILL EXPIRE AT NOON PDT TODAY FOR ABUNDANT LIGHTNING AND GUSTY OUTFLOW WINDS FOR FIRE WEATHER ZONE WA695... The threat of abundant cloud-to-ground lightning has diminished, so the warning will be allowed to expire. $$ ORZ691-703-WAZ690-691-230500- /O.CON.KPDT.FW.W.0020.260822T1900Z-260823T0500Z/ Lower Columbia Basin of Oregon-Warm Springs Reservation- Kittitas Valley-Lower Columbia Basin of Washington- 1157 AM PDT Sat Aug 22 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM PDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES OR691, OR703, WA690, AND WA691... * AFFECTED AREA...Fire Weather Zones 690 Kittitas Valley, 691 Lower Columbia Basin of Oregon, 691 Lower Columbia Basin of Washington and 703 Warm Springs Reservation. * TIMING...Until 10 PM PDT this evening. * WINDS...West 15 to 25 mph with gusts of 25 to 40 mph. * RELATIVE HUMIDITY...15 to 25 percent in the afternoon. * IMPACTS...Any fire that develops will catch and spread quickly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ ORZ696-698-700-230500- /O.CON.KPDT.FW.W.0020.260822T1900Z-260823T0500Z/ John Day Valley-Southern Blue Mountains- Central Mountains of Oregon- 1157 AM PDT Sat Aug 22 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 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...Until 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. && $$ ORZ693-WAZ693-230300- /O.CON.KPDT.FW.W.0020.000000T0000Z-260823T0300Z/ Canyon Grasslands of Wallowa County- Southeast Washington Grande Ronde Valley- 1157 AM PDT Sat Aug 22 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES OR693 AND WA693... * AFFECTED AREA...Fire Weather Zones 693 Canyon Grasslands of Wallowa County and 693 Southeast Washington Grande Ronde Valley. * TIMING...Until 8 PM PDT this evening. * WINDS...Southwest 10 to 20 mph with gusts of 20 to 30 mph, shifting to the northwest 10 to 20mph with gusts of 20 to 30 mph late afternoon and evening. * RELATIVE HUMIDITY...10 to 20 percent in the afternoon. * IMPACTS...Any fire that develops will catch and spread quickly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ ORZ692-WAZ692-230600- /O.CON.KPDT.FW.W.0020.000000T0000Z-260823T0600Z/ Northern Blue Mountains of Oregon-Blue Mountains of Washington- 1157 AM PDT Sat Aug 22 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING FOR ABUNDANT LIGHTNING AND GUSTY OUTFLOW WINDS 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...Until 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. && $$