Jefferson County, Montana
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.
1
Tornado reports
56
Hail reports
7
Floods since 1996
248
All events
0
Deaths
$300K
Property damage
Tornado paths in Jefferson County
The part of each tornado’s path NOAA recorded in this county, 1 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.
Thunderstorm Wind Thunderstorm Wind
Mesonet station MTBLS Boulder South Mt-69 Mp 27.7 measured a 61 mph wind gust.
Flood Flood
Sherriff's office reports substantial standing water on Highway 69 near mile markers 17 and 11, and on Highway 55 near mile marker 8.
Hail Hail
Trained spotter reports hail slightly larger than quarter sized.
Thunderstorm Wind Thunderstorm Wind
Mesonet station MTSPK Spokane Creek Us-287 Mp 55.7 measured a 58 mph wind gust.
Thunderstorm Wind Thunderstorm Wind
Public weather station measured a severe caliber gust.
Thunderstorm Wind Thunderstorm Wind
The DOT sensor at Spokane Creek MTSPK measured a 58 mph gust along US-287 at mile marker 55.7.
Tornado EFU Tornado
Emergency manager relayed photos, and several photos were received via social media, of a well documented tornado in the Whitetail Basin. No structural damage occurred and most areas were inaccessible to the NWS storm survey team.
Hail Hail
Public reported quarter size hail.
Flash Flood Flash Flood
Jefferson County Sheriff's Office reported Milligan Canyon Road was washed out in several locations due to heavy rainfall.
Hail Hail
Trainer spotter reported hail falling between dime and quarter size.
Heavy Rain Heavy Rain
Mesonet station tibm8 Tizer basin SNOTEL.
Heavy Rain Heavy Rain
Mesonet station RKPM8 Rocker Peak snotel.
Hail Hail
Via spotter report.
Heavy Rain Heavy Rain
Trained spotter reported 0.43 inches of heavy rain measured in 20 minutes.
Heavy Rain Heavy Rain
Trained spotter reported 1 inch of rainfall.
Avalanche Avalanche
Snotel Tizer Basin measured an estimated 9 inches of snow over 24 hours.
Heavy Snow Heavy Snow
Snotel Tizer Basin measured an estimated 9 inches of snow over 24 hours.
Heavy Snow Heavy Snow
An estimated 17 inches of snow fell at the Frohner Meadows SNOTEL over 24 hours.
Cold/Wind Chill Cold/Wind Chill
Two sites, including mesonet station mtelk Elk Park (mt dot), reported wind chills from -40 to -54F the morning of Feb 23.
High Wind High Wind
Mesonet station jvwm, which is 5.4 miles north of Waterloo, reports wind gust of 60 mph. This appears to be an isolated gust.
Wildfire Wildfire
The Haystack Fire was a lightning caused incident first discovered on July 31st, 2021. It was a relatively quiet event until September 18th, when strong southwesterly winds and critically low relative humidity fueled its growth to 10,800 acres. This led to pre-evacuation notice b…
Heavy Snow Heavy Snow
Trained spotter at 2 SE Montana City reported a 12.3 snowfall total.
Winter Weather Winter Weather
Trained spotter reports 4 inches of snow.
High Wind High Wind
Jack Creek 10 SE Boulder measured a 52 kt (60 mph) non-thunderstorm wind gust.
Heavy Snow Heavy Snow
Storm total snowfall of one foot reported near Clancy.
Heavy Snow Heavy Snow
Public estimate of 10 inches of new snow on Friday.
Heavy Snow Heavy Snow
Public report of 12 inches of snow.
High Wind High Wind
MDT Elk Park Station (11 SW Basin) measured a 55 kt (63 mph) non-thunderstorm wind gust.
High Wind High Wind
Ranch BB station (12 SE Boulder) measured a 64 kt (74 mph) non-thunderstorm wind gust.
Winter Storm Winter Storm
Snowfall total of 6 inches was reported at Clancy.
Heavy Snow Heavy Snow
Co-op observer reports 20 of new snow and till snowing at time of observation.
Heavy Snow Heavy Snow
Public reports 18 of heavy snow near Montana City via Twitter.
Heavy Snow Heavy Snow
Social media report of 7.
Heavy Snow Heavy Snow
Measured 7 inches new snow since midnight.
Winter Weather Winter Weather
Spotter estimated 4.5-5 of snow fell overnight and into this morning.
High Wind High Wind
Mesonet station mtbou, Boulder Hill (mt dot). Station elevation: 5592 ft.
Winter Weather Winter Weather
Public report 14 W Whitehall estimated snowfall 13.5 inches.
Heavy Rain Heavy Rain
A rainfall total of 1.36 inches was reported by the public at 2 SE Montana City. Rainfall total began on the evening of Sunday, September 8th.
Heavy Rain Heavy Rain
Public reported a rainfall total of 2.25 inches at 2 N Clancy from September 6th through the 9th.
Hail Hail
A member of the public reported hail estimated to be the size of quarters (1 inch Diameter) near Park Lane. hail was covering the ground.
Hail Hail
A trained spotter reported quarter size hail (1 inch diameter) for a short period but then mostly dime sized hail after that.
Hail Hail
A trained spotter reports hail up to 1.5 inches in diameter 5 miles NNW of Whitehall at 5:26 PM MST.
Hail Hail
A trained spotter reports hail of 1.5 inches in diameter.
Hail Hail
A trained spotter reports sized 1.5 inches in diameter about 5 miles NNW of Whitehall.
Hail Hail
A trained spotter reports hail size of 1.5 inches in diameter.
Hail Hail
Trained spotter reports quarter sized hail falling and covering the ground near Cardwell.
Hail Hail
Trained spotter reports quarter sized hail falling and affecting travel on nearby Montana Highway 2.
Hail Hail
Trained spotter reported 1.5 inch hail in Whitehall.
Hail Hail
Second hand report of quarter size hail reported in Clancy by KRTV.
Winter Storm Winter Storm
MT DOT reported severe driving conditions along I-90 at Homestake Pass during snowstorm.
Events by year, as a table
| Year | Events | Tornadoes |
|---|---|---|
| 2025 | 4 | 0 |
| 2024 | 2 | 0 |
| 2023 | 3 | 1 |
| 2022 | 10 | 0 |
| 2021 | 10 | 0 |
| 2020 | 7 | 0 |
| 2019 | 17 | 0 |
| 2018 | 12 | 0 |
| 2017 | 9 | 0 |
| 2016 | 8 | 0 |
| 2015 | 4 | 0 |
| 2014 | 15 | 0 |
| 2013 | 16 | 0 |
| 2012 | 10 | 0 |
| 2011 | 13 | 0 |
| 2010 | 14 | 0 |
| 2009 | 11 | 0 |
| 2008 | 9 | 0 |
| 2007 | 10 | 0 |
| 2006 | 3 | 0 |
| 2005 | 6 | 0 |
| 2004 | 3 | 0 |
| 2003 | 5 | 0 |
| 2002 | 14 | 0 |
| 2001 | 8 | 0 |
| 2000 | 2 | 0 |
| 1998 | 3 | 0 |
| 1996 | 1 | 0 |
| 1995 | 1 | 0 |
| 1994 | 2 | 0 |
| 1977 | 1 | 0 |
| 1976 | 2 | 0 |
| 1970 | 2 | 0 |
| 1969 | 1 | 0 |
| 1968 | 1 | 0 |
| 1967 | 2 | 0 |
| 1966 | 1 | 0 |
| 1964 | 1 | 0 |
| 1963 | 1 | 0 |
| 1960 | 2 | 0 |
| 1959 | 1 | 0 |
| 1958 | 1 | 0 |
Search your address
See every tornado that passed within 25 miles of a place in Jefferson County, measured to its path.
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