Wyoming, 2024

Heavy Snow and Winter Weather in Wyoming, February 20 to 22, 2024

February 20 to 22, 2024 · NWS CYS · 4 events in 4 counties and zones

Moderate to heavy snowfall was observed across much of Carbon County as well as western Albany County in southeast Wyoming from the 20th through early on the 22nd. Highest snowfall totals were observed in the Sierra Madres.

Where it happened

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.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

Open the live radar over this ground

The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
4

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.

What happened

The episode as NWS CYS wrote it up.

Moderate to heavy snowfall was observed across much of Carbon County as well as western Albany County in southeast Wyoming from the 20th through early on the 22nd. Highest snowfall totals were observed in the Sierra Madres.

What forecasters said that day

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 20, 2:26 PM MST, 1 hour 34 minutes earlier.

Area forecast discussion, Feb 20, 2:26 PM MST, 1 hour 34 minutes before
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Hazardous weather outlook, Feb 20, 2:29 PM MST, 1 hour 31 minutes before
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The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

3 winter weather, 1 heavy snow. Local standard time, as filed.

Heavy Snow, Sierra Madre Range

When
February 20, 4:00 PM MST to February 22, 5:00 AM MST
Where
Sierra Madre Range forecast zone
Reported by
SNOTEL
Coordinates
41.695, -106.931 (the zone’s center; the record gives no point)

Old Battle SNOTEL (elevation 10000 feet) in the Sierra Madre Range estimated 19.2 inches of snowfall. Nearby SNOTEL sites above 9000 feet elevation reported around one 1 foot of snow accumulation.

Winter Weather, Snowy Range

When
February 20, 4:00 PM MST to February 21, 12:00 PM MST
Where
Snowy Range forecast zone
Reported by
SNOTEL
Coordinates
41.675, -106.327 (the zone’s center; the record gives no point)

Med Bow SNOTEL (elevation 10510 feet) in the Snowy Range estimated 10.8 inches of snowfall.

Winter Weather, North Snowy Range Foothills

When
February 21, 6:00 PM MST to February 22, 6:00 AM MST
Where
North Snowy Range Foothills forecast zone
Reported by
CoCoRaHS
Coordinates
41.675, -106.327 (the zone’s center; the record gives no point)

CoCoRaHS observers near Elk Mountain reported between 4 and 5 inches of snow accumulation.

Winter Weather, Upper North Platte River Basin

When
February 21, 6:00 PM MST to February 22, 6:00 AM MST
Where
Upper North Platte River Basin forecast zone
Reported by
CoCoRaHS
Coordinates
41.695, -106.931 (the zone’s center; the record gives no point)

CoCoRaHS observer located 6 miles northeast of Riverside reported 5 inches of snow accumulation.

What these are

Heavy Snow
Snowfall reaching the local warning threshold without the other hazards of a winter storm.
Winter Weather
Snow, sleet or freezing rain below warning levels that still caused disruption, damage or casualties.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Wyoming in 2024Every state in 2024This day in weather historyWarnings in Wyoming, February 2024

Sources

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: 1154415, 1154416, 1154428, 1154429.