Wyoming, 2000

Winter Storm in Wyoming, September 22 to 23, 2000

September 22 to 23, 2000 · NWS UNR · 2 events in 2 counties and zones

An early season snowstorm brought heavy snow to northeastern Wyoming. Three to eight inches of snow fell across southern Campbell County, with three to six inches of snowfall in the Bear Lodge Mountains.

Where it happened

Every event with a place to put it; 2 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
2

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 UNR wrote it up.

An early season snowstorm brought heavy snow to northeastern Wyoming. Three to eight inches of snow fell across southern Campbell County, with three to six inches of snowfall in the Bear Lodge Mountains. Some of the snowfall totals at the cooperative observing sites set snowfall records for the month of September.

The radar

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

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Event by event

2 winter storm. Local standard time, as filed.

Winter Storm, Wyoming Black Hills

When
September 22, 1:00 AM MST to September 23, 6:00 AM MST
Where
Wyoming Black Hills forecast zone
Reported by
TRAINED SPOTTER
Coordinates
44.215, -104.569 (the zone’s center; the record gives no point)

Winter Storm, South Campbell

When
September 22, 3:00 AM MST to September 23, 12:00 PM MST
Where
South Campbell forecast zone
Reported by
TRAINED SPOTTER
Coordinates
44.248, -105.548 (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 2000Every state in 2000This day in weather historyWarnings in Wyoming, September 2000

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: 5157956, 5157957.