One report of severe weather was received on the 15th.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS PIH wrote it up.
One report of severe weather was received on the 15th.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Pocatello, ID wrote its last area forecast discussion before the first event at Aug 15, 12:32 PM MST, 3 hours 28 minutes earlier. Its key messages:
Area Forecast Discussion National Weather Service Pocatello ID 132 PM MDT Fri Aug 15 2025 .KEY MESSAGES... - Near critical to critical fire weather conditions will continue through the weekend due to gusty winds, low relative humidity, and isolated to scattered thunderstorms. - Daily shower and thunderstorm chances will continue through Sunday, peaking in coverage each afternoon, with stronger activity capable of producing gusty outflow winds. - Temperatures through next week will remain near normal to above normal with highs in the 80s/90s, peaking next week. && .SHORT TERM /THROUGH SATURDAY NIGHT/... Issued at 1247 PM MDT Fri Aug 15 2025 Showers and thunderstorms will persist into this evening, mainly along and south of the Snake Plain and into the Bear Lake area. We could see a handful from Mackay to Monida and across the Snake Plain (especially from any outflow coming from the south). There is a 50-70% chance of winds over 35 mph, with some gusts possibly in the 45-55 mph range. Outside of storms, some gusts up to 30 mph are possible especially across the Arco Desert, central mountains, and southeast highlands. A few showers and MAYBE a thunderstorm or two remain possible overnight. We dropped any potential for that to 15% or lower. For Saturday, a little better surge of moisture arrives, but we are not expecting much of an uptick in rainfall...just an increase in coverage. Scattered thunderstorms are likely across portions of the central mountains and eastern highlands. Across the Snake Plain and southeast highlands, coverage pushes to scattered along and east of I-15 in the afternoon and early evening timeframe. Anywhere we see storms tomorrow, there is a 30-70% chance of gusts over 35 mph. High end gusts are pushing 50-65 mph, especially across the Snake Plain. Outside of storms. gusts up to 30 mph are once again anticipated. Storms quickly race off to the northeast tomorrow evening, although a few stragglers may remain over the central mountains and along the Montana border at night. That potential for now remains at 10% or less. && .LONG TERM /SUNDAY THROUGH THURSDAY/... Issued at 1247 PM MDT Fri Aug 15 2025 East Idaho will remain between two large systems through the extended: strengthening high pressure centered near the Four Corners region, and persistent troughing off the PacNW/BC Canada coast. One more day of thunderstorm activity is expected Sunday, followed by a much drier air mass arriving from the south beginning Monday. Deep southerly flow will help induce a significant warming trend, bringing daytime highs back into the low to mid 90s by Tuesday. The Tuesday and Wednesday highs from the deterministic NBM are at the bottom end of the ensemble range, so it is possible to see these forecast highs raise in the coming days. Past midweek, there is potential to start to see some moisture work north through the Great Basin, leading to some thunderstorm potential by the end of the work week. && .AVIATION /18Z TAFS THROUGH 18Z SATURDAY/... Issued at 1122 AM MDT Fri Aug 15 2025 VFR conditions look to continue across E Idaho through Saturday morning. Isolated to widely scattered showers and thunderstorms expected this afternoon, primarily impacting BYI, PIH, IDA and DIJ. SUN looks to be too far northwest to see much activity today. Maintained all PROB30 groups from previous forecast issuance, with timing still expected to peak between 20Z and 02Z. Latest high-res model solutions still producing gusts over 40kts. High clouds linger overnight (10-12kft heights), and would not be surprised to see pockets of virga around/after sunrise Saturday morning. Additional thunderstorm development expected Saturday afternoon, but confidence isn't quite there for SUN yet so left out of terminal for now. && .FIRE WEATHER... Issued at 1247 PM MDT Fri Aug 15 2025 We are still looking at the potential for critical fire weather conditions across portions of central and eastern Idaho through the weekend. The RED FLAG WARNING for today due to thunderstorms across 413 and 427 remains in place for today. The models have trended toward to little or no activity outside of these areas. That said we COULD see a few showers and storms from Mackay to Monida Pass or across the Snake Plain especially if outflow from other storms shifts across those areas. That trend carries into tonight, with a 15% or less chance of showers. We did take thunderstorms out of the forecast, but a strike or two is not out of the question. Outside of where storms are today, we are seeing some gusts 20-30 mph. We aren't going to expand our warnings today as any widespread issues with critical conditions doesn't appear imminent. For Saturday and Saturday night, there is a small uptick in moisture...BUT that doesn't appear to be translating to a better chance of actual rainfall. It appears to be enough to increase coverage of storms unfortunately. Scattered storms are expected across the central mountains in Zones 475/476 and Zone 411. We should scattered coverage along and east of I-15 in 410 and 413. Elsewhere, coverage will remain isolated at best. There is a 30-70% chance of gusts over 35 mph, with high-end potential of 50-65 mph especially what storms do develop across the Snake Plain. Once again, outside of storms some places may see gusts 25-30 mph. Later this evening when the current round of warnings is dropped, we will issue a RED FLAG WARNING for Zones 411, 413, 475 and 476 for scattered storms and outflow winds. Coverage is not enough in Zone 410 at the moment. Any other areas COULD see localized areas of critical conditions, but not enough to pull the trigger. For Sunday, coverage of showers and thunderstorms looks highest...especially over the mountains. Rainfall amounts still don't look impressive, so yet another round of mostly dry storms is forecast. That will mean at least one more round of warnings appears likely. The weather calms down quite a bit, BUT we turn warmer and dry out quickly across our area. && .PIH WATCHES/WARNINGS/ADVISORIES... Red Flag Warning until 9 PM MDT this evening for IDZ413-427. && SHORT TERM...Keyes LONG TERM...DMH AVIATION...DMH FIRE WEATHER...Keyes
Special Weather Statement
National Weather Service Pocatello ID
331 PM MDT Fri Aug 15 2025
IDZ054-055-057>059-152215-
Eastern Magic Valley ID-Franklin/Eastern Oneida Region ID-
Marsh and Arbon Highlands ID-Raft River Region ID-
Lower Snake River Plain ID-
331 PM MDT Fri Aug 15 2025
...A LINE OF THUNDERSTORMS AND OUTFLOW WINDS WILL IMPACT WESTERN
ONEIDA...CENTRAL BANNOCK...SOUTHEASTERN POWER AND SOUTHEASTERN
CASSIA COUNTIES THROUGH 415 PM MDT...
At 329 PM MDT, Doppler radar was tracking a line of thunderstorms
near Fort Hall Bannock Peak, or 11 miles southeast of Neeley, moving
northeast at 25 mph.
HAZARD...Wind gusts of 50 to 55 mph and pea size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor hail damage to outdoor objects is
possible.
Locations impacted include...
Eastern Pocatello, Rockland, Fort Hall Bannock Peak, Juniper,
Pauline, Arbon, Sublett Reservoir, Mink Creek Pass, Roy, and Sweetzer
Summit.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4241 11336 4285 11247 4274 11225 4200 11283
4200 11332
TIME...MOT...LOC 2129Z 226DEG 35KT 4260 11279
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...55 MPH
CroppThe Pocatello radar (KSFX), 40 km away, was scanning. The volume nearest the first event began at 23:01 UTC.
1 thunderstorm wind. Local standard time, as filed.
A 58 mph wind gust recorded at mesonet station 2977 D5 Arbon Valley.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Idaho in 2025Every state in 2025This day in weather historyWarnings in Idaho, August 2025
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 1288839.