A favorable pattern set up for extremely heavy snow in the Pocatello area where amounts of snow were generally in the 1 to 2 foot range throughout the metro area. Schools were closed and morning rush hour travel on the 4th was extremely difficult as blowing and drifting snow was also widespread.
Every event with a place to put it; 4 filed by county or forecast zone are drawn at its center, in a lighter ring. 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.
A favorable pattern set up for extremely heavy snow in the Pocatello area where amounts of snow were generally in the 1 to 2 foot range throughout the metro area. Schools were closed and morning rush hour travel on the 4th was extremely difficult as blowing and drifting snow was also widespread.
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 3, 1:03 PM MST, 2 hours 57 minutes earlier.
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</html>The national radar mosaic for the moment the first event began.
4 heavy snow. Local standard time, as filed.
Heavy snow fell with 11 inches measured 11 miles south/southeast of Rockland. The Rockland School District 382 closed on the 4th due to the heavy snow and strong winds causing blowing and drifting snow as well.
Six to 8 inches of snow was measured in the Inkom area with snow increasing rapidly to the north and west with a high measured total of 25.5 inches 7 miles northwest of Inkom off of Buckskin Road. Arbon Elementary School District 383 closed schools on the 4th as well as Rockland School District 382 due to the snow and wind causing hazardous travel.
Very heavy snow fell in the Bear Lake Valley with the COOP observer at Bern measuring 9 inches and the COOP observer at Lifton Pumping Station measuring 10 inches.
A favorable localized heavy snow pattern set up with extremely heavy snowfall from American Falls eastward to Pocatello and surrounding areas. Snow amounts escalated from 5.5 inches in Aberdeen to 5 inches in American Falls and 9 inches by the American Falls COOP observer. The Pocatello Regional Airport measured 11.7 inches with downtown Pocatello 12.5 inches. Areas around Chubbuck measured from 15 to 21 inches with the Pocatello benches also measuring 15 to 21 inches. A public report 4 miles east/southeast of Chubbuck carried 25 inches which was the highest total reported. Winds of 15 to 25 mph caused extensive blowing and drifting with horrible morning travel on the 4th. Pocatello Chubbuck School District 25 closed as did American Falls School District 381. Sho-Ban School District closed and Idaho State University closed afternoon classes as well.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Idaho in 2023Every state in 2023This day in weather historyWarnings in Idaho, April 2023
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 2026-10-01. Each event’s entry at NCEI: 1095296, 1095297, 1095528, 1095529.