A prolonged period of very heavy mountain snow was observed in the Snowy and Sierra Madre ranges, with multiple SNOTEL observations recording 3 to 4 feet of total snowfall accumulation.
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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 CYS wrote it up.
A prolonged period of very heavy mountain snow was observed in the Snowy and Sierra Madre ranges, with multiple SNOTEL observations recording 3 to 4 feet of total snowfall 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 Jan 9, 4:56 AM MST, 4 minutes earlier.
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</html>The national radar mosaic for the moment the first event began.
2 winter storm. Local standard time, as filed.
Multiple SNOTEL observations suggest widespread snowfall totals of 12 to 24 inches across the Snowy Range. A maximum estimated snowfall total of 45 inches was recorded at the Medicine Bow SNOTEL site, 14 miles WNW of Centennial at an elevation of 10,512 feet.
Multiple SNOTEL observations suggest widespread snowfall totals of 12 to 24 inches across the Sierra Madre Range. A maximum estimated snowfall total of 38 inches was recorded at the Little Snake River SNOTEL site, 12 miles SW of Encampment at an elevation of 8928 feet.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Wyoming in 2024Every state in 2024This day in weather historyWarnings in Wyoming, January 2024
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: 1153375, 1153376.