Wyoming, 1999

Heavy Snow in Wyoming, May 15, 1999

May 15, 1999 · NWS BYZ · 1 event in 1 county or zone

The Sheridan County sheriff office reported up to 10 inches of snow fell in the Northeast Big Horn mountains. Burgess Junction picked up 8 inches of new snow.

The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
1

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 BYZ wrote it up.

The Sheridan County sheriff office reported up to 10 inches of snow fell in the Northeast Big Horn mountains. Burgess Junction picked up 8 inches of new snow.

Event by event

1 heavy snow. Local standard time, as filed.

Heavy Snow, W Sheridan

When
May 15, 11:00 AM MST to 7:00 PM MST
Where
W Sheridan forecast zone
Reported by
LAW ENFORCEMENT

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 1999Every state in 1999This day in weather historyWarnings in Wyoming, May 1999

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: 5694536.