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Washakie County, Wyoming severe weather history spans 144 recorded events between 1962 and 2025. The dominant hazard is thunderstorm wind, accounting for 41.0% of all recorded events. It ranks #2,728 nationally and #18 in Wyoming.
144
Recorded events
0
Direct deaths
1
Direct injuries
$765K
Property damage
The record
What the Washakie County, Wyoming severe weather history record shows
Across the archive, Washakie County, Wyoming severe weather history averages 2.3 recorded events a year. The busiest stretch on record is the 2010s, with 46 events logged in that decade alone. Roughly 30 events fall before 1990 and 114 from 1990 onward — a gap that reflects the expansion of NOAA reporting practice as much as the weather itself.
The costliest is flood, with $515K in reported property damage. In total, 6 distinct hazard types appear in this county archive, each listed with its own dated record below.
By hazard type
Every hazard type recorded in Washakie County
| Hazard | Events | Deaths | Damage | Max | Span |
|---|---|---|---|---|---|
| Thunderstorm Wind | 59 | 0 | $92K | 74 | 1962–2025 |
| Hail | 49 | 0 | $30K | 2.75 | 1978–2019 |
| Funnel Cloud | 12 | 0 | $0 | 0 | 1997–2021 |
| Flood | 10 | 0 | $515K | 0 | 2008–2019 |
| Tornado | 8 | 0 | $93K | F0 | 1975–2018 |
| Flash Flood | 6 | 0 | $35K | 0 | 2001–2023 |
Decade by decade
Washakie County, Wyoming severe weather history by decade
Reporting practice changed over time — early decades are undercounted, not calmer.
Tornado tracks
Paths crossing this county
10 mapped tornado paths intersect this county: 10 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 |
|---|---|---|---|---|---|
| 2018-06-01 | EF2 | 0 | 0 | 1.0 mi | Touched down here |
| 2010-08-30 | EF1 | 0 | 0 | 4.6 mi | Touched down here |
| 2009-08-14 | EF0 | 0 | 0 | 0.8 mi | Touched down here |
| 1999-08-11 | EF0 | 0 | 0 | 0.2 mi | Touched down here |
| 1999-08-28 | EF0 | 0 | 0 | 1.0 mi | Touched down here |
| 1987-05-18 | EF0 | 0 | 0 | 0.1 mi | Touched down here |
| 1987-06-18 | EF0 | 0 | 0 | 2.0 mi | Touched down here |
| 1985-06-20 | EF0 | 0 | 0 | 1.0 mi | Touched down here |
| 1976-06-17 | EF0 | 0 | 0 | 0.1 mi | Touched down here |
| 1975-06-18 | EF0 | 0 | 0 | 0.1 mi | Touched down here |
Significant events
Deadliest events on record in Washakie County
| Date | Type | Location | Deaths | Injuries | Damage |
|---|---|---|---|---|---|
| Jul 12, 1995 | Thunderstorm Wind | Worland | 0 | 1 | $0 |
From the record
What the reports say
Written by National Weather Service staff at the time of the event · public domain
Ice jam flooding caused damage in Worland. Neighborhoods near the river north and south of the Highway 789 bridge reported flooding of some homes. The water extended 100-200 yards from the river's edge at a depth of 12 to 18 inches.
Rapidly warming temperatures after a prolonged cold spell, rapidly melted snow in the Big Horn Basin. This, combined with the frozen Big Horn River breaking up, produced flooding in Washakie County, especially in the vicinity of Worland. Over 100 homes were evacuated in the low lying residential areas along the river. Some residents were out of their homes for three days before finally being allowed back as the water receded on February 14th. The water receded after February 15th as the ice jam moved northward into Big Horn County.
Temperatures approaching 70 degrees around 9,500 feet melted snow and caused the water level on Tensleep Creek to quickly rise during the overnight hours of June 29 and 30. The flood waters washed out a road leading to the Wigwam Fish Rearing Station and to a private residence near the mouth of Tensleep Canyon east of town. Several residents also reported flooding of their yards and at least one reported an out-building being inundated by water.
Context
Risk, population and federal disasters
Very Low
FEMA NRI risk rating
7,703
Population (ACS)
$206K
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 |
| Aug 5, 2017 | Flood | FLOODING | DR |
| Jul 22, 2011 | Severe Storm | SEVERE STORMS, FLOODING, AND LANDSLIDES | DR |
| May 29, 1978 | Flood | SEVERE STORMS, FLOODING & MUDSLIDES | DR |
Quick answers
Frequently asked
How many severe weather events have been recorded in Washakie County, Wyoming?
144 events are on record between 1962 and 2025, causing 0 direct deaths and $765K in property damage.
What is the most common severe weather hazard in Washakie County?
Thunderstorm Wind, with 59 recorded events — 41.0% of everything in the archive for this county.
How many tornadoes have crossed Washakie County?
10 mapped tornado paths intersect the county boundary; 10 of them touched down inside it. This is derived from path geometry, not county-tagged reports.
How many federal disaster declarations cover Washakie County?
5 federal disaster declarations from FEMA include Washakie County, each tied to a specific incident period.
How risky is Washakie County compared with the rest of the country?
FEMA's National Risk Index rates Washakie County as very low risk, placing it in the 24 percentile of its state for expected annual loss.
Where does the Washakie 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
- Uinta County 82
- Weston County 524
- Teton County 118
- Sweetwater County 184
- Sublette County 95
- Sheridan County 385
Cite this page
“Washakie County, Wyoming.” Severe Weather History. severeweatherhistory.com/county/wyoming/washakie-county/ · Data: NOAA/NCEI, FEMA, U.S. Census — public domain.