40
Recorded events
0
Direct deaths
8
Direct injuries
$453K
Property damage
Tornado in Natrona County, Wyoming: 40 recorded events between 1962 and 2023. The strongest on record measured F2. That places the county #620 nationally and #6 statewide for this hazard.
Decade by decade
Tornado in Natrona County, Wyoming: events per decade
Reporting practice changed over time — early decades are undercounted, not calmer.
The busiest decade for tornado in Natrona County is the 1980s, when 11 of the county's 40 recorded events were logged. Comparing decades is useful for spotting active periods, but the earliest years are thin because systematic reporting for this hazard began later.
Within the Natrona County archive, tornado makes up 10.0% of all recorded severe weather across 8 hazard types. Nationally the county sits at #620 for this hazard and #6 within Wyoming, putting it in the 78.6 percentile of all U.S. counties.
Seasonality
Events by month
Jun is the peak month for tornado in Natrona County with 18 recorded events, while Jan is the quietest. Seasonality here is a property of the archive as much as the climate: reports cluster where population and spotter networks are densest.
Tornado tracks
Paths crossing this county
| Date | Scale | Path length | Max width | Origin |
|---|---|---|---|---|
| 1987-06-18 | EF2 | 7.0 mi | 50 yd | Touched down here |
| 1987-07-21 | EF2 | 5.0 mi | 140 yd | Touched down here |
| 1978-07-20 | EF2 | 1.0 mi | 100 yd | Touched down here |
| 1971-05-29 | EF2 | 0.2 mi | 10 yd | Touched down here |
| 1962-06-11 | EF2 | 52.0 mi | 100 yd | Touched down here |
| 2023-06-23 | EF1 | 10.8 mi | 100 yd | Touched down here |
| 1988-07-07 | EF1 | 0.5 mi | 50 yd | Touched down here |
| 1986-06-12 | EF1 | 1.0 mi | 23 yd | Touched down here |
| 1975-05-08 | EF1 | 0.1 mi | 10 yd | Touched down here |
| 1974-08-09 | EF1 | 0.1 mi | 10 yd | Touched down here |
Significant events
Deadliest on record
| Date | Location | Scale | Deaths | Injuries | Damage |
|---|---|---|---|---|---|
| Jun 11, 1962 | F2 | 0 | 4 | $25K | |
| May 29, 1971 | F2 | 0 | 3 | $0 | |
| Jul 21, 1978 | F2 | 0 | 1 | $25K |
Most recent
Latest recorded events
| Date | Location | Magnitude | Damage |
|---|---|---|---|
| Jun 23, 2023 | MERINO | EFU | $0 |
| Jun 23, 2023 | MIDWEST | EF1 | $100K |
| Aug 23, 2019 | CASPER HARFORD ARPT | EF0 | $0 |
| Jul 26, 2018 | BAR NUNN | EF0 | $0 |
| Jun 13, 2017 | BAR NUNN | EF0 | $0 |
| May 23, 2014 | PARADISE VLY | EF0 | $0 |
| Aug 12, 2013 | ALCOVA | EF0 | $0 |
| Jun 22, 2013 | FRY | EF0 | $0 |
| May 7, 2008 | ALLENDALE | EF0 | $0 |
| Sep 8, 2003 | CASPER | F0 | $0 |
Other hazards here
More from Natrona County
- Hail 165
- Thunderstorm Wind 142
From the record
What the reports say
Written by National Weather Service staff at the time of the event · public domain
There were numerous reports, pictures, and video of a cone tornado that touched down to the south of Midwest, WY. The tornado remained over open country for the most part. However, the tornado damaged one home where a large section of the roof was removed. Exterior walls remained standing. A trailer was overturned, fuel tanks were blown away, and trees near the residence were damaged.||Based on the FR12 damage indicator category, this tornado was rated EF1 using a low to middle end DOD estimate for the type of construction. Winds are estimated to have been around 110 mph. Stronger winds could have occurred elsewhere along the track, but open country prevented any further evidence of wind damage. Damage survey completed by county emergency management officials.
A landspout tornado developed near the west shoreline of Alcova Reservoir in southern Natrona County. The brief tornado was photographed from at least three different angles. The tornado remained over open land and caused no damage.
02,1550MST,,,0,0,0,0,Hail (1.75) A funnel cloud was observed at 1525 MST west of Casper. The funnel cloud touched ground and became a tornado at 1540 MST near Paradise Valley. The tornado lasted about a minute before lifting off the ground. The funnel dissipated by 1600 MST. Golf ball-size hail was reported at the fish hatchery at 1550 MST.
Quick answers
Frequently asked
How many tornado events are on record in Natrona County, Wyoming?
40 tornado events are recorded in Natrona County between 1962 and 2023, causing 0 direct deaths.
What is the strongest tornado recorded in Natrona County?
The strongest tornado on record in Natrona County measured F2.
Where does the tornado data for Natrona County come from?
All events come from the NOAA/NCEI Storm Events Database, the federal public-domain archive of severe weather reports. Dates are UTC, damage is as reported and not inflation-adjusted, and the most recent entries may still be revised.
Cite this page
“Tornado in Natrona County, Wyoming.” Severe Weather History. severeweatherhistory.com/county/wyoming/natrona-county/tornado/ · Data: NOAA/NCEI, FEMA, U.S. Census — public domain.