Big Horn County, Wyoming
Tornadoes, hail, floods and severe storms recorded here between 1958 and 2025, from NOAA's Storm Events Database. Search an address to see which tornadoes came closest to it.
33
Tornado reports
62
Hail reports
30
Floods since 1996
222
All events
1
Deaths
$3.1M
Property damage
Tornado paths in Big Horn County
The part of each tornado’s path NOAA recorded in this county, 33 in all. Zoom in and the paths widen to their surveyed width.
EF0EF1EF2EF3EF4EF5Unrated
Year by year
All storm eventsTornadoes
NOAA's storm database records tornadoes back to 1950 and hail and thunderstorm wind back to 1955, but floods only from 1996 on. Older floods are missing here. For those, the U.S. Geological Survey's stream gauge records and flood reports are the place to look.
Most significant events
The strongest tornadoes, deadliest events and biggest damage here, up to 50.
Tornado F3 Tornado
Thunderstorm Wind Thunderstorm Wind
Thunderstorm Wind Thunderstorm Wind
Thunderstorm Wind Thunderstorm Wind
Thunderstorm Wind Thunderstorm Wind
A 67 mph wind gust was reported at the Southern Big Horn County airport near Greybull.
Thunderstorm Wind Thunderstorm Wind
Thunderstorm Wind Thunderstorm Wind
Thunderstorm Wind Thunderstorm Wind
Flash Flood Flash Flood
Thunderstorm Wind Thunderstorm Wind
The South Big Horn County airport near Greybull reported a wind gust of 59 mph.
Thunderstorm Wind Thunderstorm Wind
The South Big Horn airport had a wind gust of 59 mph.
Thunderstorm Wind Thunderstorm Wind
The South Big Horn County airport reported a wind gust of 71 mph.
Thunderstorm Wind Thunderstorm Wind
The South Big Horn County airport had a 61 mph wind gust.
Thunderstorm Wind Thunderstorm Wind
A 59 mph wind gust was reported at the Greybull Airport.
Hail Hail
A trained spotter reported half dollar size hail the southwest of Byron, WY.
Hail Hail
A trained spotter reported quarter size hail to the northwest of Greybull.
Thunderstorm Wind Thunderstorm Wind
A maximum wind gust of 64 mph was recorded at the Cowley Airport.
Thunderstorm Wind Thunderstorm Wind
The Willow Creek RAWS weather sensor recorded a maximum wind gust of 64 mph.
Thunderstorm Wind Thunderstorm Wind
A maximum wind gust of 63 mph was reported at the South Big Horn County Airport near Greybull.
Thunderstorm Wind Thunderstorm Wind
Thunderstorm Wind Thunderstorm Wind
Thunderstorm Wind Thunderstorm Wind
Thunderstorm Wind Thunderstorm Wind
A 58 mph wind gust was reported at the South Bighorn County Airport.
Hail Hail
A trained spotter reported quarter size hail to the north of Basin along Highway 789.
Thunderstorm Wind Thunderstorm Wind
Thunderstorm Wind Thunderstorm Wind
A wind gust of 79 mph was reported at the Greybull, Wyoming airport from a convective shower. The wind gust caused damage in Greybull, Wyoming, where a tree was uprooted, a roof and house under construction were damaged, and a camper was tipped over.
Flood Flood
Please see episode for event description.
Thunderstorm Wind Thunderstorm Wind
Outflow thunderstorm winds brought wind gusts of 64 mph to Cowley and 58 mph to the Greybull airport.
Thunderstorm Wind Thunderstorm Wind
Thunderstorm Wind Thunderstorm Wind
A wind gust of 63 mph was reported at the Greybull, Wyoming airport.
Thunderstorm Wind Thunderstorm Wind
A maximum wind gust of 65 mph was reported at the Greybull, Wyoming airport from a outflow boundary from distant thunderstorms.
Thunderstorm Wind Thunderstorm Wind
The ASOS at the Greybull, Wyoming airport reported a maximum wind gust of 63 mph.
Thunderstorm Wind Thunderstorm Wind
The ASOS at the Greybull airport had multiple wind gusts past 58 mph, including a maximum gust of 68 mph.
Hail Hail
A trained spotter reported nickel size hail in Basin.
Flood Flood
Heavy rain caused flooding in portions of Medicine Lodge state park.
Hail Hail
A trained spotter reported half dollar sized hail.
Hail Hail
A severe thunderstorm crossed the border from Montana and brought up to golf ball size hail across much of northern Big Horn County. Lovell was the hardest hit community where there was widespread damage. One official estimated that over 60 percent of the homes had damage, mainly…
Thunderstorm Wind Thunderstorm Wind
A severe thunderstorm brought high winds through much of northern Big Horn County. The strongest wind gust recorded was 79 mph at the Greybull Airport. Other notable gusts included 62 mph at Cowley and 59 mph at Frannie and Lovell. The strong wind combined with golf ball size hai…
Thunderstorm Wind Thunderstorm Wind
A severe thunderstorm produced a microburst that downed several hundred trees in the Bighorn National Forest. Wind gusts were estimated to be between 80 and 90 mph.
Thunderstorm Wind Thunderstorm Wind
A 61 mph wind gust reported at the Greybull airport.
Funnel Cloud Funnel Cloud
A trained spotter observed a funnel cloud 4 miles west of Basin.
Hail Hail
Nickel sized hail covered the ground at the High Country Lodge.
Flood Flood
The Medicine Lodge Creek rose to flood stage briefly on the morning of May 27th.
Thunderstorm Wind Thunderstorm Wind
A gust front developed ahead of a line of thunderstorms moving northward through the Bighorn Basin. Very strong winds developed along a line from Manderson northward to Greybull. At the Greybull airport, a wind gust of 78 mph was recorded before the power failed. In Basin. 15 to …
Thunderstorm Wind Thunderstorm Wind
The Greybull airport recorded a wind gust of 60 mph.
Thunderstorm Wind Thunderstorm Wind
A 59 mph wind gust was recorded at the Greybull airport.
Flood Flood
Emergency Managers reported flooding along the Big Horn River near Manderson. The flooding remained over low lying areas and caused no damage.
Hail Hail
The Big Horn County sheriff reported hail from the size of nickels up to the size of Ping Pong balls.
Tornado EF0 Tornado
A supercell thunderstorm dropped a weak rope tornado that moved slowly northward in southern Big Horn County and skipped along around a 3 mile path. The tornado remained over open country and caused no damage.
Events by year, as a table
| Year | Events | Tornadoes |
|---|---|---|
| 2025 | 4 | 0 |
| 2024 | 7 | 0 |
| 2023 | 4 | 0 |
| 2022 | 9 | 0 |
| 2021 | 2 | 0 |
| 2020 | 3 | 0 |
| 2019 | 5 | 0 |
| 2018 | 9 | 0 |
| 2017 | 7 | 1 |
| 2016 | 5 | 0 |
| 2015 | 9 | 0 |
| 2014 | 9 | 1 |
| 2013 | 15 | 0 |
| 2011 | 9 | 0 |
| 2010 | 10 | 1 |
| 2009 | 18 | 1 |
| 2008 | 3 | 0 |
| 2007 | 4 | 0 |
| 2006 | 11 | 0 |
| 2005 | 6 | 3 |
| 2004 | 1 | 0 |
| 2002 | 7 | 0 |
| 2001 | 7 | 2 |
| 2000 | 3 | 0 |
| 1999 | 1 | 0 |
| 1998 | 5 | 0 |
| 1997 | 10 | 6 |
| 1996 | 1 | 0 |
| 1995 | 2 | 0 |
| 1993 | 1 | 0 |
| 1992 | 2 | 1 |
| 1991 | 5 | 0 |
| 1990 | 2 | 0 |
| 1989 | 1 | 0 |
| 1988 | 1 | 0 |
| 1987 | 1 | 1 |
| 1985 | 1 | 1 |
| 1984 | 3 | 1 |
| 1981 | 2 | 1 |
| 1978 | 2 | 2 |
| 1977 | 1 | 0 |
| 1976 | 1 | 1 |
| 1975 | 2 | 0 |
| 1974 | 3 | 3 |
| 1967 | 1 | 1 |
| 1964 | 1 | 1 |
| 1962 | 2 | 2 |
| 1961 | 1 | 0 |
| 1959 | 2 | 2 |
| 1958 | 1 | 1 |
Search your address
See every tornado that passed within 25 miles of a place in Big Horn County, measured to its path.
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