WWUS85 KBOI 201538 RFWBOI URGENT - FIRE WEATHER MESSAGE National Weather Service Boise ID 938 AM MDT Sat Jun 20 2026 ...RED FLAG WARNING FOR LIGHTNING... .An upper trough will continue to develop scattered thunderstorms in southeast Oregon and southwest Idaho today, especially this afternoon. Expect 30 to 50 percent areal coverage of thunderstorms with potential for new fire starts due to lightning. ORZ670-672-210000- /O.CON.KBOI.FW.W.0006.000000T0000Z-260621T0000Z/ Burns BLM-Southern Grasslands- 838 AM PDT Sat Jun 20 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM PDT THIS AFTERNOON FOR LIGHTNING FOR BURNS BLM AND SOUTHERN GRASSLANDS... WHICH ARE FIRE WEATHER ZONES 670 AND 672... * AFFECTED AREA...In Oregon, Fire Weather Zones 670 Burns BLM and 672 Southern Grasslands. * TIMING...Until 5 PM PDT this afternoon. * THUNDERSTORMS...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 occur shortly. && $$ IDZ423-426-210000- /O.CON.KBOI.FW.W.0006.000000T0000Z-260621T0000Z/ Owyhee Mountains-Southern Highlands- 938 AM MDT Sat Jun 20 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING FOR LIGHTNING FOR OWYHEE MOUNTAINS AND SOUTHERN HIGHLANDS...WHICH ARE FIRE WEATHER ZONES 423 AND 426... * AFFECTED AREA...In Idaho, Fire Weather Zones 423 Owyhee Mountains and 426 Southern Highlands. * TIMING...Until 6 PM MDT this evening. * THUNDERSTORMS...Scattered coverage with abundant lightning. * OUTFLOW WINDS...Gusty erratic winds up to 40 mph. * IMPACTS...Any fire that develops will catch and spread quickly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will occur shortly. && $$ L