Several sites recorded severe thunderstorm outflow winds in the afternoon.
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.
Several sites recorded severe thunderstorm outflow winds in the afternoon.
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 Apr 12, 11:25 AM MST, 1 hour 20 minutes earlier. Its key messages:
Area Forecast Discussion National Weather Service Pocatello ID 1225 PM MDT Sun Apr 12 2026 .KEY MESSAGES... - Strong to severe storms again this afternoon with gusts up to 60 mph and small hail the main threats. - Mountain snow on and off through Monday with isolated to scattered valley rain showers. - Seasonable temperatures through Wednesday before next system arrives bringing more precipitation and even cooler temperatures for Thursday and Friday. && .DISCUSSION... Issued at 1221 PM MDT Sun Apr 12 2026 Another round of showers and thunderstorms is on tap for this afternoon and evening as the low we've been talking about for several days now continues to slowly make its way through northern California/eastern Oregon and into central Idaho. We're already starting to see things light up on radar this afternoon with very pulse-y thunderstorms popping up. These storms today will once again have the potential to produce strong to severe gusts to around 60 mph with small hail as all of Eastern Idaho is highlighted in SPC's "Marginal" risk today. Surface CAPE isn't quite as strong today, with the HREF ensemble generally showing ranges from 200-400 J/kg across the area, but more clearing/heating than what we say yesterday it will improve overall instability compared to yesterday. It will also be windy outside of storms, too, with gusts of 35-45 mph for many. The cold front associated with this system will be through by Monday, so highs on Monday afternoon will be cooler, only making it into the low to mid 50s for most. We continue to see showers into Monday, especially in the Central Mountains where snow levels will fall to near 5000-5500 ft for Monday which means more mountains snow ahead. Around Stanley, the forecast shows about 1 to 3 inches of snow while Galena Summit looks closer to 2 to 5 inches of snow from this afternoon to tomorrow night. Snow totals will be a bit lighter in the Eastern Highlands, less than an inch on Pine Creek Pass and closer to 2 to 4 inches for Emigration summit. By Tuesday, this system will be departing and we will get a bit of a break in the activity, though a few isolated showers could linger in the Eastern Highlands into the afternoon. As soon as early Wednesday morning, our next system begins to move into the Central Mountains and will spread eastward throughout the rest of our CWA during the day. Wednesday will be a windy day, especially in the upper Snake River Plain where gusts are already forecast to be pushing 40-45 mph. Thursday will also be breezy with widespread gusts of 30-40 mph. This system looks to bring in decent moisture for everyone and colder temperatures as highs will go from mid to upper 50s on Wednesday to low to mid 40s on Thursday. With temperatures dropping and precipitation continuing, we are expecting more snowfall in the mid to upper elevations, but there will also be some potential for light snow down to valley floors early Thursday morning and early Friday morning. Of course, this is several days away, so we will watch this closely over the next few days. && .AVIATION /18Z TAFS THROUGH 18Z MONDAY/... Issued at 1139 AM MDT Sun Apr 12 2026 Another round of convection is expected this afternoon and evening with PROB30 TSRA at each East Idaho terminal. VFR conditions continue, though stronger storms could produce temporary CIG restrictions to MVFR. Storms will be capable of producing 45-50kt outflow winds once again, but the general wind pattern will also support wind gusts outside thunderstorm activity reaching 25-30kts. Expect dry conditions overnight for BYI, PIH, and IDA, though SHRA/SHSN will be possible late tonight into Monday morning for SUN and DIJ. Another round of more consolidated SHRA reaches SUN for Monday afternoon, spreading east but decreasing in coverage for the remainder of the terminals. && .PIH WATCHES/WARNINGS/ADVISORIES... None. && DISCUSSION...AMM AVIATION...DMH
Special Weather Statement
National Weather Service Pocatello ID
1233 PM MDT Sun Apr 12 2026
IDZ055-056-121900-
Eastern Magic Valley ID-Southern Hills/Albion Mountains ID-
1233 PM MDT Sun Apr 12 2026
...A STRONG THUNDERSTORM WILL IMPACT WEST CENTRAL CASSIA COUNTY
THROUGH 100 PM MDT...
At 1233 PM MDT, Doppler radar was tracking a strong thunderstorm 10
miles east of Rogerson, or 18 miles northeast of Jackpot, moving
northeast at 30 mph.
HAZARD...Wind gusts in excess of 45 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
This storm will remain over mainly rural areas of west central Cassia
County.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4242 11429 4242 11413 4236 11400 4210 11428
TIME...MOT...LOC 1833Z 206DEG 25KT 4216 11441
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...45 MPH
DMHSpecial Weather Statement
National Weather Service Pocatello ID
1247 PM MDT Sun Apr 12 2026
IDZ058-059-121915-
Franklin/Eastern Oneida Region ID-Marsh and Arbon Highlands ID-
1247 PM MDT Sun Apr 12 2026
...A STRONG THUNDERSTORM WILL IMPACT SOUTHEASTERN ONEIDA...SOUTH
CENTRAL BANNOCK AND NORTHWESTERN FRANKLIN COUNTIES THROUGH 115 PM
MDT...
At 1247 PM MDT, Doppler radar was tracking a strong thunderstorm 9
miles southwest of Pleasantview, or 14 miles southwest of Malad,
moving northeast at 35 mph.
HAZARD...Wind gusts in excess of 45 mph and half inch 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...
Malad, Pleasantview, and Samaria.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4202 11257 4238 11240 4226 11208 4200 11231
4200 11252
TIME...MOT...LOC 1847Z 207DEG 29KT 4204 11243
MAX HAIL SIZE...0.50 IN
MAX WIND GUST...45 MPH
DMHSpecial Weather Statement
National Weather Service Pocatello ID
142 PM MDT Sun Apr 12 2026
IDZ058>063-122015-
Franklin/Eastern Oneida Region ID-Bear Lake Valley ID-
Bear River Range ID-Marsh and Arbon Highlands ID-Caribou Range ID-
Blackfoot Mountains ID-
142 PM MDT Sun Apr 12 2026
...A STRONG THUNDERSTORM WILL IMPACT SOUTHWESTERN CARIBOU...
NORTHEASTERN ONEIDA...SOUTHEASTERN BANNOCK...NORTHWESTERN FRANKLIN
AND NORTHWESTERN BEAR LAKE COUNTIES THROUGH 215 PM MDT...
At 141 PM MDT, Doppler radar was tracking a strong thunderstorm near
Downey, or 9 miles north of Swanlake, moving northeast at 40 mph.
HAZARD...Wind gusts in excess of 45 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Soda Springs, McCammon, Lava Hot Springs, Swanlake, Grace, Downey,
Arimo, Virginia, Niter, and Malad Pass.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4225 11194 4232 11231 4272 11227 4266 11148
TIME...MOT...LOC 1941Z 221DEG 36KT 4244 11205
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...45 MPH
AMMThe Pocatello radar (KSFX), 90 km away, was scanning. The volume nearest the first event began at 19:46 UTC.
18 thunderstorm wind. Local standard time, as filed.
The Yale ITD mesonet site recorded a 60 mph thunderstorm outflow wind gust.
A 60 mph thunderstorm outflow wind gust measured at Tom Cat Summit ITD mesonet site.
A 61 mph thunderstorm outflow wind gust was measured at the Cold Water ITD mesonet site.
A 58 mph thunderstorm outflow wind gust was measured at the Aberdeen mesonet site.
A 65 mph thunderstorm outflow wind gust was recorded at the Sterling ITD mesonet site.
A 61 mph thunderstorm outflow wind gust was measured at the Pocatello Regional Airport ASOS site.
A 60 mph thunderstorm outflow wind gust measured at the Aberdeen mesonet site.
Damage was reported in Chubbuck and Pocatello with roof shingle damage, power pole damage, power line damage, yard damage etc.
A 59 mph thunderstorm outflow wind gust was measured at the Tom Cat Summit ITD mesonet site.
A 60 mph thunderstorm outflow wind gust was measured at the Taber mesonet site.
The INL Puzzle site recorded a 61 mph thunderstorm outflow wind.
The Tilden Flats ITD mesonet site recorded a 58 mph thunderstorm outflow wind gust.
The Medicine Lodge mesonet site recorded a 58 mph thunderstorm outflow wind gust.
The Relay Ridge mesonet site recorded a 59 mph thunderstorm outflow wind gust.
A 61 mph thunderstorm outflow wind gust was recorded at the Terreton mesonet site.
A 59 mph thunderstorm outflow wind gust was measured at the Rover mesonet site.
A 58 mph thunderstorm outflow wind gust was measured at the Junction 33/22 Summit ITD mesonet site.
The Specific Manufacturing INL mesonet site recorded a 67 mph wind gust.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Idaho in 2026Every state in 2026This day in weather historyWarnings in Idaho, April 2026
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: 1329731, 1329732, 1329733, 1329734, 1329735, 1329736, 1329737, 1329910, 1329738, 1329739, 1329859, 1329860, 1329861, 1329862, 1329869, 1329886, 1329906, 1329907.