Wyoming

Storm History: Natrona County, Wyoming

811 episodes, 1,392 events since 1959

Every storm the National Weather Service has filed in Natrona County, Wyoming: floods, hail, damaging wind, tornadoes, winter storms, heat and the rest, with the most serious on record. Events filed by forecast zone count for every county the zone covers.

The record

Events
1,392
Deaths
2
Injuries
16
Damage
$25 million
Episodes
811

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.

Open the live radar over Natrona County

Every year

From 1996 the record holds 48 kinds of event with each office’s narrative; before that, tornadoes, hail and thunderstorm wind only, and before 1955 tornadoes alone.

By kind of event

Counted under the kind that heads each episode.

Kind of eventEventsDeathsInjuriesDamage
Winter Storm42401$3.2 million
High Wind35800$375,000
Hail15711$186,000
Thunderstorm Wind10900$29,000
Tornado7808$468,000
Heavy Snow6500$19,000
Flash Flood6001$10.0 million
Blizzard5800
Cold/Wind Chill2000
Wildfire1702$10 million
Extreme Cold/Wind Chill1200
Funnel Cloud900
Heat700
Avalanche503
Flood300$2,000
Lightning300$250,000
Debris Flow200$402,000
Winter Weather210
Excessive Heat200
Dense Fog100

The deadliest

The costliest

Damage within this county, in the dollars of its year.

The largest hail

The largest stone in each episode, which may have fallen in a neighboring county of the same episode.

The strongest tornadoes

Every tornado in Natrona County, with its track

Every episode, newest first

Earlier years, state by state:

More

Tornadoes in Natrona CountyEvery warning in Natrona County since 1986Every county in Wyoming

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.