Wyoming, 2010

Heavy Snow in Wyoming, March 23, 2010

March 23, 2010 · NWS CYS · 6 events in 4 counties and zones

A strong cold front and associated upper level disturbance moved through the area producing rain, which then transitioned over to snow behind the front. Northwest facing mountain slopes received significant snow accumulations due to the upslope effect from the terrain as the front moved eastward..

Where it happened

Every event with a place to put it; 6 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
6

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.

A strong cold front and associated upper level disturbance moved through the area producing rain, which then transitioned over to snow behind the front. Northwest facing mountain slopes received significant snow accumulations due to the upslope effect from the terrain as the front moved eastward..

The radar

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

Open the radar archive at this moment

Event by event

6 heavy snow. Local standard time, as filed.

Heavy Snow, Shirley Basin

When
March 23, 2:00 AM MST to 4:52 PM MST
Where
Shirley Basin forecast zone
Reported by
COOP Observer
Coordinates
41.675, -106.327 (the zone’s center; the record gives no point)

A measured snowfall amount of 7.5 inches of snowfall was reported at 13 NNW of Rock River.

Heavy Snow, Shirley Basin

When
March 23, 2:00 AM MST to 4:52 PM MST
Where
Shirley Basin forecast zone
Reported by
COOP Observer
Coordinates
41.675, -106.327 (the zone’s center; the record gives no point)

A measured snowfall report of 6.0 inches at Medicine Bow.

Heavy Snow, Central Laramie Range and Southwest Platte County

When
March 23, 2:03 AM MST to 4:52 AM MST
Where
Central Laramie Range and Southwest Platte County forecast zone
Reported by
COOP Observer
Coordinates
41.698, -105.127 (the zone’s center; the record gives no point)

Sybille Research reported a measured snowfall amount of 10.0 inches.

Heavy Snow, East Platte County

When
March 23, 2:03 AM MST to 4:52 AM MST
Where
East Platte County forecast zone
Reported by
COOP Observer
Coordinates
42.133, -104.966 (the zone’s center; the record gives no point)

Wheatland 4N reported a measured snowfall amount of 6.0 inches.|Chugwater COOP Observer reported a measured snowfall of 8.0 inches.

Heavy Snow, South Laramie Range Foothills

When
March 23, 2:03 AM MST to 11:00 PM MST
Where
South Laramie Range Foothills forecast zone
Reported by
Trained Spotter
Coordinates
41.481, -105.207 (the zone’s center; the record gives no point)

A measured snowfall amount of 7.0 inches was reported at Cheyenne 17 W. At the time of the report snow was still falling.

Heavy Snow, South Laramie Range Foothills

When
March 23, 2:03 AM MST to 11:00 PM MST
Where
South Laramie Range Foothills forecast zone
Reported by
Trained Spotter
Coordinates
41.481, -105.207 (the zone’s center; the record gives no point)

A measured snowfall report of 12.0 inches was reported at Horse Creek.

What these are

Heavy Snow
Snowfall reaching the local warning threshold without the other hazards of a winter storm.

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, March 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 2026-10-01. Each event’s entry at NCEI: 216761, 216875, 216872, 216873, 216874, 216876.