Special Weather Statement issued June 20 at 2:22PM MDT by NWS Boise ID
Issue date: 2026-06-20T20:22+00:00
At 221 PM MDT, Doppler radar was tracking a strong thunderstorm 8 miles northeast of Horse Butte, or 31 miles west of Twin Falls, moving east at 30 mph. HAZARD...Wind gusts up to 50 mph and half inch hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Areas of blowing dust reducing visibility. Minor damage to outdoor objects is possible. This strong thunderstorm will be near... Castleford around 240 PM MDT.
Red Flag Warning issued June 20 at 9:38AM MDT until June 20 at 6:00PM MDT by NWS Boise ID
Issue date: 2026-06-20T15:38+00:00
...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. * 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.
Red Flag Warning issued June 20 at 7:13AM MDT until June 20 at 9:00PM MDT by NWS Pocatello ID
Issue date: 2026-06-20T13:13+00:00
...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR SCATTERED THUNDERSTORMS FOR FIRE WEATHER ZONES 410, 413, 422, 427, 475, AND 476... * AFFECTED AREA...Fire Weather Zone 410 Upper Snake River Valley/Idaho Falls BLM, Fire Weather Zone 413 Caribou Range/Caribou NF, Fire Weather Zone 422 Sawtooth Range/Northern Sawtooth NF, Fire Weather Zone 427 Goose Creek and Raft River Valley/Southern Sawtooth NF/Twin Falls BLM south of the Snake River, Fire Weather Zone 475 East Salmon River Mountains/Salmon NF and Fire Weather Zone 476 Lemhi and Lost River Range/Challis NF. * IMPACTS...Critical fire weather conditions are expected today. Lightning may generate new fire starts. Any new fire starts or existing fires may spread rapidly. * THUNDERSTORMS...25 to 45 percent coverage. * OUTFLOW WINDS...Stronger storms will be capable of producing wind gusts up to 55 mph.
