Wyoming, 1997

Blizzard and Heavy Snow in Wyoming, April 4 to 5, 1997

April 4 to 5, 1997 · NWS RIW · 6 events in 6 counties and zones

two day blizzard with winds in excess of 50 mph and deep snow drifts caused numerous road closures and some livetock losses. Heavy snow amounts of up to a foot in the lander foothills and sunlight basin.

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 RIW wrote it up.

two day blizzard with winds in excess of 50 mph and deep snow drifts caused numerous road closures and some livetock losses. Heavy snow amounts of up to a foot in the lander foothills and sunlight basin.

The radar

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

Open the radar archive at this moment

Event by event

3 blizzard, 3 heavy snow. Local standard time, as filed.

Blizzard, Southeast Big Horn Mountains / W Johnson

When
April 4, 3:00 PM MST to April 5, 9:00 PM MST
Where
Southeast Big Horn Mountains / W Johnson forecast zone
Coordinates
42.264, -110.656 (the zone’s center; the record gives no point)

Blizzard, East Johnson

When
April 4, 3:00 PM MST to April 5, 9:00 PM MST
Where
East Johnson forecast zone
Coordinates
41.660, -108.879 (the zone’s center; the record gives no point)

Blizzard, Natrona / Natrona Except X Se

When
April 4, 3:00 PM MST to April 5, 9:00 PM MST
Where
Natrona / Natrona Except X Se forecast zone
Coordinates
42.904, -109.273 (the zone’s center; the record gives no point)

Heavy Snow, Lander Foothills / C Fremont

When
April 4, 3:00 PM MST to April 5, 3:00 PM MST
Where
Lander Foothills / C Fremont forecast zone
Coordinates
43.002, -109.948 (the zone’s center; the record gives no point)

Heavy Snow, North Absarokas / C Park

When
April 4, 3:00 PM MST to April 5, 3:00 PM MST
Where
North Absarokas / C Park forecast zone
Coordinates
43.760, -108.887 (the zone’s center; the record gives no point)

Heavy Snow, Owl Creek Mountains / S Hot Springs

When
April 4, 3:00 PM MST to April 5, 3:00 PM MST
Where
Owl Creek Mountains / S Hot Springs forecast zone
Coordinates
43.695, -107.538 (the zone’s center; the record gives no point)

What these are

Blizzard
Sustained winds or frequent gusts of 35 mph or more with falling or blowing snow that cuts visibility below a quarter mile for three hours or longer.
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 1997Every state in 1997This day in weather historyWarnings in Wyoming, April 1997

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: 5615223, 5615224, 5615225, 5615226, 5615227, 5615228.