A localized storm brought large hail to the Pocatello/Chubbuck area.
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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 localized storm brought large hail to the Pocatello/Chubbuck area.
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 2, 1:07 PM MST, 2 hours 28 minutes earlier.
Area Forecast Discussion National Weather Service Pocatello ID 207 PM MDT Sun Apr 2 2017 .SHORT TERM...Tonight through Tuesday night. A low pressure system and associated cold front worked through the region Today. Rain and snow above 6000 feet will continue into the evening across the eastern highlands. Some areas could still see an additional inch or so of snow as this system pulls away from the region. A second weaker system will move through the region on Monday. This will help trigger a few afternoon and evening snow showers across the central Idaho mountains through the upper Snake Plain and into the eastern Idaho highlands. Not looking for much snow, likely under half of an inch. Primarily dry weather expected for Tuesday. Temps will be noticeably cooler for Monday and Tuesday. Valle .LONG TERM...Wednesday through Sunday night. We are still looking dry on Wednesday but that might be the last rain/snow free day for a bit. The ridge shifts east and moisture begins to push into the central mountains on Thursday. The chance of showers increases over Friday especially over that area. Several waves move over eastern Idaho through the weekend, providing ample opportunity for more rain and snow. We will remain rather warm through Friday before colder air moves in for the weekend. Snow levels will fall to 5000-6500ft on Saturday and even lower on Sunday, which means we could see a mix of rain and snow at least at lowest elevations. Both situations don't bode well for anyone look for relief from flooding or even mountain snowfall. Keyes && .AVIATION...The main band of rain and snow has shifted into the eastern highlands this afternoon. Behind it, showers have developed across the central mountains and spreading east through this evening. We might even see a couple of thunderstorms out of it. Behind the main area of precipitation, VFR weather is occurring. With that area of showers, we could see a brief drop to MVFR or IFR due to heavy precipitation as well as graupel. This will mainly be an issue for KIDA and KDIJ, but a stray shower/storm or 2 could approach KSUN and KPIH. Stronger west winds are also developing in clearing skies, which will affect KBYI, KPIH and KIDA through sunset. KDIJ will likely see VCSH well into tonight as moisture lingers especially in the mountains surrounding town. Otherwise, lighter winds and VFR weather is forecast. Another round of showers is on tap for the central mountains, across the Upper Plain and into the eastern highlands. KIDA and KDIJ again would be most affected. Keyes && .HYDROLOGY...Numerous flood advisories from snowmelt and flood warnings for the Portneuf and Bear Rivers continue. A flood warning continues for areas downstream of Magic Reservoir, where water continues to stream over the spillway. Cooler weather is likely for the first half of the week which should help slow flooding. However, a wet pattern is expected for late week and over the weekend which could push the flooding potential again. Valle && .PIH WATCHES/WARNINGS/ADVISORIES... None. &&
Special Weather Statement National Weather Service Pocatello ID 404 PM MDT SUN APR 2 2017 IDZ019-020-022245- Upper Snake Highlands ID-Upper Snake River Plain ID- 404 PM MDT SUN APR 2 2017 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN FREMONT...NORTHERN JEFFERSON AND SOUTH CENTRAL CLARK COUNTIES UNTIL 445 PM MDT... At 404 PM MDT, Doppler radar was tracking a strong thunderstorm 15 miles west of Dubois, moving east at 25 mph. Half inch hail and winds in excess of 40 mph will be possible with this storm. Locations impacted include... Dubois and Small. LAT...LON 4407 11265 4425 11265 4429 11204 4402 11204 TIME...MOT...LOC 2204Z 269DEG 21KT 4416 11255 DMH
Special Weather Statement National Weather Service Pocatello ID 406 PM MDT SUN APR 2 2017 IDZ021-023-022245- Caribou Highlands ID-Lower Snake River Plain ID- 406 PM MDT SUN APR 2 2017 ...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN BANNOCK... NORTHEASTERN POWER AND SOUTHWESTERN BINGHAM COUNTIES UNTIL 445 PM MDT... At 404 PM MDT, Doppler radar was tracking a strong thunderstorm near American Falls Reservoir. This storm was moving east southeast at 20 mph. Half inch hail and winds in excess of 40 mph will be possible with this storm. Locations impacted include... Pocatello, American Falls Reservoir, Chubbuck, Portneuf Gap, Fort Hall Buffalo Lodge, Fort Hall Townsite, Springfield, Fort Hall Eagle Lodge, Pocatello Airport, Pingree and Sterling. PRECAUTIONARY/PREPAREDNESS ACTIONS... Frequent cloud to ground lightning is occurring with this storm. Lightning can strike 10 miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle. && LAT...LON 4284 11272 4310 11280 4314 11231 4276 11227 TIME...MOT...LOC 2204Z 240DEG 0KT 4301 11275 GK
The Pocatello radar (KSFX), 22 km away, was scanning. The volume nearest the first event began at 22:34 UTC.
10 hail. Local standard time, as filed.
Hail the size of 1.25 inches measured at the Pocatello National Weather Service office.
Golf ball sized hail measured on Taghee Ln south of W Siphon Rd.
Hail measured at 1.50 inches at the intersections of W Siphon Rd and Weaver Rd.
One inch hail measured near Foothill Blvd and Trail Creek Rd.
One inch hail measured in Chubbuck.
Hail the size of 1.25 inches measured at the intersection of Pocatello Creek Rd and Booth Dr.
Multiple reports from the public of 1.25 inch hail in the city of Pocatello.
One inch hail measured on Gary St in Chubbuck.
Hail was measured at 1.50 inches on the east bench of Pocatello near the hospital.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Idaho in 2017Every state in 2017This day in weather historyWarnings in Idaho, April 2017
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 2026-09-30. Each event’s entry at NCEI: 695203, 695205, 695207, 695208, 695210, 695213, 695214, 695215, 695217, 695218.