Winter Weather Advisories were issued for Arlington and the I-80 Summit for snow accumulation.
Every event with a place to put it; 2 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 CYS wrote it up.
Winter Weather Advisories were issued for Arlington and the I-80 Summit for snow accumulation.
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 Cheyenne, WY wrote its last area forecast discussion before the first event at Feb 13, 4:28 PM MST, 2 hours 32 minutes earlier.
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</html>The national radar mosaic for the moment the first event began.
2 heavy snow. Local standard time, as filed.
Peak snowfall reported in the Sierra Madres came from the Little Snake River SNOTEL (LITW4) with 34.1 inches. Most other SNOTELs were between 18 to 30 inches.
Peak snowfall reported in the Snowy Range came from the Sand Lake SNOTEL (SNLW4) with 23.7 inches. Most other SNOTELs were between 13 to 18 inches.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Wyoming in 2025Every state in 2025This day in weather historyWarnings in Wyoming, February 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 2026-10-01. Each event’s entry at NCEI: 1228462, 1228463.