Wyoming, 2024

Winter Storm in Wyoming, December 16 to 17, 2024

December 16 to 17, 2024 · NWS RIW · 3 events in 3 counties and zones

Another Pacific weather system moved into western Wyoming and brought another round of moderate to heavy snow to western Wyoming. The heaviest snow fell in the Salt and Wyoming Range where 20 inches of new snow fell at the Willow Creek SNOTEL site.

Where it happened

Every event with a place to put it; 3 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

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The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
3

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 RIW wrote it up.

Another Pacific weather system moved into western Wyoming and brought another round of moderate to heavy snow to western Wyoming. The heaviest snow fell in the Salt and Wyoming Range where 20 inches of new snow fell at the Willow Creek SNOTEL site. At the Jackson Hole Ski Resort, 16 inches of new snow fell with 12 inches at the Larson Creek SNOTEL site in the Wind River Range. In the lower elevations, 12 inches of new snow fell north of Jackson with 13 inches to the south of Alpine.

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 Riverton, WY wrote its last area forecast discussion before the first event at Dec 15, 3:59 PM MST, 15 hours 1 minute earlier.

Area forecast discussion, Dec 15, 3:59 PM MST, 15 hours 1 minute 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 storm. Local standard time, as filed.

Winter Storm, Teton & Gros Ventre Mountains

When
December 16, 7:00 AM MST to December 17, 12:00 PM MST
Where
Teton & Gros Ventre Mountains forecast zone
Reported by
Other Federal Agency
Coordinates
43.002, -109.948 (the zone’s center; the record gives no point)

There were several reports of over a foot of new snow in the Tetons, with a maximum of 16 inches at the Jackson Hole Ski Resort.

Winter Storm, Salt River & Wyoming Ranges

When
December 16, 7:00 AM MST to December 17, 3:00 PM MST
Where
Salt River & Wyoming Ranges forecast zone
Reported by
SNOTEL
Coordinates
42.516, -110.286 (the zone’s center; the record gives no point)

There were numerous reports of over a foot of snow in the Salt and Wyoming Range, including a maximum of 20 inches at the Willow Creek SNOTEL site.

Winter Storm, Wind River Mountains West

When
December 16, 8:00 AM MST to December 17, 12:00 PM MST
Where
Wind River Mountains West forecast zone
Reported by
SNOTEL
Coordinates
42.904, -109.273 (the zone’s center; the record gives no point)

At the Larson Creek SNOTEL site, 12 inches of new snow fell.

What these are

Winter Storm
A storm that brought snow, sleet or freezing rain at warning levels, usually over several hours or days.

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, December 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: 1227166, 1227168, 1227167.