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Teton County, Wyoming severe weather history spans 118 recorded events between 1970 and 2025. The dominant hazard is thunderstorm wind, accounting for 45.8% of all recorded events. It ranks #2,822 nationally and #20 in Wyoming.
118
Recorded events
2
Direct deaths
56
Direct injuries
$3.1M
Property damage
The record
What the Teton County, Wyoming severe weather history record shows
Across the archive, Teton County, Wyoming severe weather history averages 2.1 recorded events a year. The busiest stretch on record is the 2000s, with 40 events logged in that decade alone. Roughly 23 events fall before 1990 and 95 from 1990 onward — a gap that reflects the expansion of NOAA reporting practice as much as the weather itself.
The deadliest hazard in the Teton County, Wyoming record is lightning, responsible for 2 direct deaths. The costliest is tornado, with $2.5M in reported property damage. In total, 9 distinct hazard types appear in this county archive, each listed with its own dated record below.
By hazard type
Every hazard type recorded in Teton County
| Hazard | Events | Deaths | Damage | Max | Span |
|---|---|---|---|---|---|
| Thunderstorm Wind | 54 | 0 | $487K | 87 | 1970–2025 |
| Hail | 34 | 0 | $0 | 1.75 | 1982–2022 |
| Lightning | 10 | 2 | $0 | 0 | 1999–2022 |
| Wildfire | 7 | 0 | $0 | 0 | 2000–2003 |
| Flash Flood | 4 | 0 | $90K | 0 | 2007–2014 |
| Flood | 4 | 0 | $25K | 0 | 1998–2023 |
| Tornado | 3 | 0 | $2.5M | F4 | 1987–2025 |
| Debris Flow | 1 | 0 | $0 | 0 | 2019–2019 |
| Heavy Rain | 1 | 0 | $10K | 0 | 2017–2017 |
Decade by decade
Teton County, Wyoming severe weather history by decade
Reporting practice changed over time — early decades are undercounted, not calmer.
Tornado tracks
Paths crossing this county
3 mapped tornado paths intersect this county: 3 touched down inside it and 0 crossed in from a neighbouring county. This comes from path geometry, not county-tagged reports.
| Date | Scale | Deaths | Injuries | Path length | Origin |
|---|---|---|---|---|---|
| 1987-07-21 | EF4 | 0 | 0 | 24.3 mi | Touched down here |
| 2022-06-12 | EF2 | 0 | 0 | 2.1 mi | Touched down here |
| 2025-10-15 | EF1 | 0 | 0 | 1.0 mi | Touched down here |
Significant events
Deadliest events on record in Teton County
| Date | Type | Location | Deaths | Injuries | Damage |
|---|---|---|---|---|---|
| Jul 26, 2003 | Lightning | JACKSON | 1 | 5 | $0 |
| Aug 3, 2022 | Lightning | MORAN | 1 | 1 | $0 |
| Jul 21, 2010 | Lightning | JENNY LAKE | 0 | 17 | $0 |
| Jun 21, 2005 | Lightning | FISHING BRIDGE | 0 | 11 | $0 |
| Jun 1, 2010 | Lightning | OLD FAITHFUL | 0 | 9 | $0 |
| Jun 22, 2002 | Lightning | MORAN | 0 | 5 | $0 |
| Aug 5, 1999 | Lightning | JACKSON ARPT | 0 | 2 | $0 |
| Jul 3, 2019 | Lightning | (JAC)JACKSON HOLE AR | 0 | 1 | $0 |
From the record
What the reports say
Written by National Weather Service staff at the time of the event · public domain
On Tuesday evening, August 2, 2022 lightning struck a group of backpackers camped at Enos Lake in the Teton Wilderness. One person, a 22-year-old male, died in the incident, while another, an adult male, sustained major injuries. The lightning bolt reportedly hit the backpackers at camp. The men were part of a group of 14 adults on an organized wilderness trip. This information is directly from a Teton County Search and Rescue press release describing the event.
Hundreds of trees were downed in and around Wilson WY. Some trees landed on power lines, resulting in a loss of power for several hours in Wilson. Pictures shared by emergency management showed fallen trees which had damaged homes, businesses, and vehicles.
Thunderstorm outflow wind descended the east slopes of the Teton Range and generated a swath of damage from near Wilson north along the Moose-Wilson Road and through Grand Teton National Park. The damage began near Wilson around 1645MST and spread north until shortly after 1700MST. Downed trees damaged power lines, crushed parked vehicles, made roads impassable, and even stranded park visitors on the Signal Mountain Summit Road. Just under 1000 customers were impacted by power outages due to the downed power lines, including park employee housing at Beaver Creek. In all, over 150 trees were cleared and all park visitors were rescued by 2200MST.
Context
Risk, population and federal disasters
Relatively Low
FEMA NRI risk rating
23,396
Population (ACS)
$1.6M
Median home value
5
Federal declarations
| Declared | Incident | Title | Type |
|---|---|---|---|
| Apr 11, 2020 | Biological | COVID-19 PANDEMIC | DR |
| Mar 13, 2020 | Biological | COVID-19 | EM |
| Mar 21, 2017 | Severe Storm | SEVERE WINTER STORM AND STRAIGHT-LINE WINDS | DR |
| Jul 22, 2011 | Severe Storm | SEVERE STORMS, FLOODING, AND LANDSLIDES | DR |
| Jul 26, 2001 | Fire | WY WILDFIRE -GREEN KNOLL- JULY 23, 2001 | FM |
Quick answers
Frequently asked
How many severe weather events have been recorded in Teton County, Wyoming?
118 events are on record between 1970 and 2025, causing 2 direct deaths and $3.1M in property damage.
What is the most common severe weather hazard in Teton County?
Thunderstorm Wind, with 54 recorded events — 45.8% of everything in the archive for this county.
How many tornadoes have crossed Teton County?
3 mapped tornado paths intersect the county boundary; 3 of them touched down inside it. This is derived from path geometry, not county-tagged reports.
How many federal disaster declarations cover Teton County?
5 federal disaster declarations from FEMA include Teton County, each tied to a specific incident period.
How risky is Teton County compared with the rest of the country?
FEMA's National Risk Index rates Teton County as relatively low risk, placing it in the 71 percentile of its state for expected annual loss.
Where does the Teton County, Wyoming severe weather history data come from?
Every figure is drawn from United States federal public-domain records: NOAA/NCEI Storm Events for the event archive, NOAA SPC SVRGIS for mapped tornado paths, FEMA for disaster declarations and risk ratings, and the U.S. Census for population context. Dates are shown in UTC and recent entries may still be revised by NOAA.
Nearby
Neighbouring counties
- Sweetwater County 184
- Uinta County 82
- Sublette County 95
- Washakie County 144
- Sheridan County 385
- Weston County 524
Cite this page
“Teton County, Wyoming.” Severe Weather History. severeweatherhistory.com/county/wyoming/teton-county/ · Data: NOAA/NCEI, FEMA, U.S. Census — public domain.