A verified weak tornado from a individual storm cell on the afternoon of April 1st.
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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.
A verified weak tornado from a individual storm cell on the afternoon of April 1st.
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 1, 12:50 PM MST, 2 hours 55 minutes earlier. Its key messages:
Area Forecast Discussion National Weather Service Pocatello ID 150 PM MDT Tue Apr 1 2025 .KEY MESSAGES... - Snow Showers today with additional accumulations in southern and eastern mountains above 6 thousand feet. Winter Weather Advisories remain in effect through this afternoon. - Light rain and snow showers continuing off and on through Friday. - Dry weekend as temperatures warm. && .SHORT TERM /THROUGH WEDNESDAY NIGHT/... Issued at 140 PM MDT Tue Apr 1 2025 Plenty of rain and snow showers showing up on radar this afternoon, especially in the Eastern Highlands and South Hills, though there is at least some isolated activity almost everyone in our CWA. These scattered showers will continue on and off through the afternoon with another 2-3 inches of snow in the Eastern Highlands as a weak low slowly moves eastward out of Idaho, so will let Winter Weather Advisory continue. There's even a 10 to 20 percent chance you hear a rumble of thunder in the eastern half of the area today. Winds are breezy this afternoon with gusts of 20 to 30 mph and some locally stronger gusts of 30 to 35 mph around the eastern Magic Valley/South Hills areas. On the back side of the low, look for some wrap around moisture enhancement in the upper Snake River Plain and Eastern Highlands early Wednesday bringing another 1-3 inches of snow for theses areas and even some light snow (less than an inch) to the Snake River Plain. We remain in an upper level trough through much of this week, so look for more scattered showery activity on Wednesday. Temperatures will be chilly Wednesday morning, in the teens and 20s for most with some low stratus/patchy fog across parts of the eastern Magic Valley, lower Snake Plain, and Wood River Valley. Highs warm just a couple of degrees on Wednesday afternoon, reaching the mid and upper 40s. This is a very slow start to our warming trend that will get going a bit more in the extended forecast. More on that below... && .LONG TERM /THURSDAY THROUGH MONDAY/... Issued at 140 PM MDT Tue Apr 1 2025 As has been the case all week, the region will remain under the influence of a broad upper trough over the Pacific NW. This will keep things on the cooler side of normal with continued cloud cover and isolated/scattered showers. Any precip looks disorganized in nature and will be mainly focused across the higher terrain of the eastern highlands and central mountains. Can't rule something out in the valleys but most spots will remain dry. The pattern begins to change on Friday as ridging looks to build over the region bringing in a warmer and drier period of weather. Friday will be the first day where temps return closer to normal (lower 50s in the valleys) with 40s still expected across the higher terrain. More noticeable warming will occur into the weekend as the ridge amplifies and this will keep things precip-free and mostly sunny while temperatures return to the 60s Sunday into Monday. Have seen some deterministic models trend towards a weak trough swinging through the area on Monday and NBM temperatures have nudged downward from previous forecast accordingly but ensemble clusters continue to show this as an outlier. It'll be something to monitor nevertheless. Either way, forecast still remains basically dry with above normal temperatures, just how warm remains up for debate amongst the models. Plenty of time to see how it all pans out. && .AVIATION /18Z TAFS THROUGH 18Z WEDNESDAY/... Issued at 1130 AM MDT Tue Apr 1 2025 Clouds remain in place across much of the area this morning although some occasional clearing has been observed from satellite imagery around KBYI and KSUN. Hi-res models continue to show scattered showers developing by the early afternoon (likely snow everywhere) with the best precip potential around KPIH, KIDA and KDIJ. TEMPOs and/or prevailing MVFR/IFR remain in place accordingly to account for this threat. Around the 01-03Z timeframe, precip chances should begin to diminish around much of the area but could linger at KDIJ into the morning hours Wednesday. Winds remain gusty everywhere this morning, except at KSUN, and these breezy conditions will continue throughout the day but winds will start to taper off after 00Z or so. Nevertheless, wind gusts in the 20-30 kt range will remain possible at KBYI, KPIH, KIDA (slightly lower at KDIJ). && .PIH WATCHES/WARNINGS/ADVISORIES... Winter Weather Advisory until 6 PM MDT this evening for IDZ058>060-063-064-066-067. && SHORT TERM...AMM LONG TERM...McKaughan AVIATION...McKaughan
Preliminary Local Storm Report
National Weather Service Pocatello ID
1235 PM MDT Tue Apr 1 2025
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0931 AM Snow 2 N Macks Inn 44.52N 111.33W
04/01/2025 M5.5 Inch Fremont ID Trained Spotter
New snow overnight. Station Elevation: 6422
ft.
&&
AMThe Pocatello radar (KSFX), 120 km away, was scanning. The volume nearest the first event began at 22:47 UTC.
1 tornado. Local standard time, as filed.
The public submitted several photographs of a tornado touched down northwest of the St. Anthony Sand Dunes. It appeared to be a very weak tornado and no damage was found as the tornado was in an open field.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Idaho in 2025Every state in 2025This day in weather historyThe tornado archive for Idaho, 2025Warnings in Idaho, April 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: 1265289.