Wyoming, 2010

Winter Storm in Wyoming, January 31, 2010

January 31, 2010 · NWS RIW · 3 events in 3 counties and zones

A winter storm tracked from the Pacific Northwest through Idaho, bringing moderate to heavy snow to far western Wyoming on Sunday, January 31. Snow totals by the end of the day reached six inches in northern Star Valley and 10 to 12 inches in the western mountains.

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.

A winter storm tracked from the Pacific Northwest through Idaho, bringing moderate to heavy snow to far western Wyoming on Sunday, January 31. Snow totals by the end of the day reached six inches in northern Star Valley and 10 to 12 inches in the western mountains. More information about the conclusion of this event is contained in the February 2010 Storm Data publication.

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, Salt River & Wyoming Ranges

When
January 31, 1:00 AM MST to 11:59 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)

Winter Storm, Teton & Gros Ventre Mountains

When
January 31, 5:30 AM MST to 11:59 PM MST
Where
Teton & Gros Ventre Mountains forecast zone
Reported by
Mesonet
Coordinates
43.002, -109.948 (the zone’s center; the record gives no point)

Winter Storm, Star Valley

When
January 31, 6:30 AM MST to 11:59 PM MST
Where
Star Valley forecast zone
Reported by
Trained Spotter
Coordinates
42.264, -110.656 (the zone’s center; the record gives no point)

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 2010Every state in 2010This day in weather historyWarnings in Wyoming, January 2010

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 2026-09-24. Each event’s entry at NCEI: 205505, 205498, 205503.