Blaine County, Montana
Tornadoes, hail, floods and severe storms recorded here between 1957 and 2026, from NOAA's Storm Events Database. Search an address to see which tornadoes came closest to it.
7
Tornado reports
102
Hail reports
24
Floods since 1996
474
All events
0
Deaths
$4.6M
Property damage
Tornado paths in Blaine County
The part of each tornado’s path NOAA recorded in this county, 7 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.
MT Department of Emergency services reported $1,071,000 in damages to roads and bridges from the combination of rain and snow melt on the Fort Belknap Reservation in Blaine County.
Thunderstorm Wind Thunderstorm Wind
Mesonet station MTCHK Chinook Us-2 Mp 403.5 thunderstorm wind gust.
Thunderstorm Wind Thunderstorm Wind
BLM Cherry Ridge peak gust.
Thunderstorm Wind Thunderstorm Wind
Peak wind gust measured by Ambient station PG Ranch.
Thunderstorm Wind Thunderstorm Wind
Mesonet station FBLM8 Fort Belknap RAWS. Time of gust is estimated.
Flash Flood Flash Flood
The river gauge Clear Creek near Chinook MT - USGS-06142400 showed water rose quicky rose above bank full due to a thunderstorm beginning late on the 27th. It crested to 8.36ft early on the 28th. The water receded back into it's bank shortly after in the early morning of the 28th…
Hail Hail
Video on social media showed hail size up to 1.75 inches.
Thunderstorm Wind Thunderstorm Wind
Ambient weather station DBR HQ measured a 63 mph gust.
Flood Flood
Broadcast media reported minor flooding at the Blaine county fairgrounds. Standing water upwards of 6 inches in spots was reported.
Thunderstorm Wind Thunderstorm Wind
RAWS sensor FBLM8 Fort Belknap measured a severe gust. Time was estimated given RAWS sensors only report one time per hour.
Thunderstorm Wind Thunderstorm Wind
RAWS station LBCM8 Little Bullwhacker Creek RAWS. Time was estimated using radar given the sensor reports one peak gust per hour.
Hail Hail
Trained spotter measured 0.11 inches of rain with the thunderstorm.
Hail Hail
Report from Mping.
Hail Hail
Report from Mping.
Hail Hail
Mixed sized hail with the largest being quarters, which fell for about 10 minutes.
Hail Hail
Lots of baseball sized hail with a few softball sized hail stones mixed in. Lots of wind was reported with the hail. Time approximated by radar. Reported by a storm chaser.
Hail Hail
Facebook report with an image. Location estimated using radar.
Hail Hail
Public report on Facebook. Egg to tennis ball sized hail caused damage to windows. Time estimated using radar.
Hail Hail
Trained spotter reported 1 inch hail.
Thunderstorm Wind Thunderstorm Wind
RAWS station FBLM8 Fort Belknap RAWS measured a 59 mph gust while lightning was in the area. Time was estimated using radar given this sensor only reports one time per hour.
Hail Hail
Several photos submitted on social media of large hail in Chinook. Insurance company reported at least 11 vehicle hail damage claims and 5 homeowners claims. Number of claims likely increased since preliminary reports.
Hail Hail
Photos submitted of hail being measured with a ruler as well as being compared to coins.
Hail Hail
Blaine County Deputy EM reported golf ball size hail at their property.
Hail Hail
Images submitted of large hail in Harlem.
Hail Hail
Co-op observer reported hail of quarter size was covering the ground.
Flood Flood
Water levels of Clear Creek near Chinook crested at 8.57 feet on June 4th, which is Major Flood Stage. At the time, this crest value was the third highest crest on record for this location.
Flood Flood
Significant flooding occurred along the Milk River across Blaine County. The Rocky Boy SNOTEL station which is the main Milk River basin station peaked later than normal and had over 3.5 times the snow water equivalent that it normally would on April 6 (10.7' of snow water equiva…
Flood Flood
Significant snowmelt resulted in flooding along Battle Creek, near Chinook. The creek crested on April 12th at 11.94 feet. Several roads across northern and central Blaine County were impacted as a result. Water was reported over Highway 2, west of Chinook, for a time. Runoff fro…
Flood Flood
Significant snowmelt resulted in flooding along Clear Creek. The creek rose approximately four feet over a 24 hour period from April 8th to April 9th, before dramatically subsiding. A nearby reservoir about 3 acres in size filled and flooded within five hours. The river gauge for…
Tornado EF0 Tornado
Photos submitted to NWS of a tornado on the backside of a single supercell near Ft. Belknap Reservation. Official indicated that the tornado was south of Ft Belknap Agency and near Wild Horse Butte. No known damage was been reported or observed.
Hail Hail
Hail around nickel sized. Time estimated via radar.
Thunderstorm Wind Thunderstorm Wind
Trained spotter reported 61 mph wind gust.
Thunderstorm Wind Thunderstorm Wind
AWOS station KS71 (Chinnok Airport) measured 60 mph wind gust.
Thunderstorm Wind Thunderstorm Wind
Agrimet site HRLM measured peak gust of 58.3 mph.
Thunderstorm Wind Thunderstorm Wind
Significant damage to a farm occurred. Two grain bins were destroyed, two roofs heavily damaged, barns heavily damaged, a few windows were reported to be blown out.
Hail Hail
Reported half inch to golfball sized hail. mostly just heavy rainfall right now and calm winds.
Hail Hail
Pictures relayed via social media of very large hail near Hays. Time of event from radar.
Heavy Rain Heavy Rain
Twenty-four hour report from cocorahs.
High Wind High Wind
Multiple sensors across Blaine county measured gusts equal to or greater than 58 mph, including mesonet station FBLM8 Fort Benton RAWS, which measured a gust of 68 mph.
High Wind High Wind
Mesonet station MTM 52 measured 60 mph wind gust 7 miles SE Hogeland.
High Wind High Wind
Multiple sensors measured gusts in excess of 58 mph on April 5, with the peak gust (72 mph) measured at mesonet station fblm8 Fort Belknap RAWS.
High Wind High Wind
Wind gust of 62 mph measured at mesonet station mtm52 7.1 SE Hogeland (mt-meso).
High Wind High Wind
Fort Belknap RAWS sensor reported wind gusts of 58 mph.
High Wind High Wind
Mesonet station 13 S Fort Belknap measured a 52 kt (60 mph) non-thunderstorm wind gust.
Extreme Cold/Wind Chill Extreme Cold/Wind Chill
Mesonet station 7 SE Hogeland recorded a -46F wind chill.
Extreme Cold/Wind Chill Extreme Cold/Wind Chill
Chinook AWOS records a -39F wind chill.
Extreme Cold/Wind Chill Extreme Cold/Wind Chill
Wind chill of -45 at Big Flat mesonet.
Extreme Cold/Wind Chill Extreme Cold/Wind Chill
Awos station s719 chinook reports a wind chill of -45.
High Wind High Wind
Coop Observer reports wind gust of 67 mph.
High Wind High Wind
Chinook station measured a 52 kt (60 mph) non-thunderstorm wind gust.
Events by year, as a table
| Year | Events | Tornadoes |
|---|---|---|
| 2026 | 1 | 0 |
| 2025 | 6 | 0 |
| 2024 | 13 | 0 |
| 2023 | 9 | 0 |
| 2022 | 17 | 1 |
| 2021 | 24 | 1 |
| 2020 | 20 | 0 |
| 2019 | 25 | 0 |
| 2018 | 12 | 0 |
| 2017 | 25 | 0 |
| 2016 | 14 | 0 |
| 2015 | 5 | 0 |
| 2014 | 38 | 2 |
| 2013 | 14 | 0 |
| 2012 | 22 | 0 |
| 2011 | 18 | 0 |
| 2010 | 10 | 0 |
| 2009 | 6 | 0 |
| 2008 | 16 | 0 |
| 2007 | 23 | 0 |
| 2006 | 7 | 0 |
| 2005 | 18 | 1 |
| 2004 | 17 | 0 |
| 2003 | 23 | 0 |
| 2002 | 10 | 1 |
| 2001 | 10 | 0 |
| 2000 | 26 | 0 |
| 1999 | 2 | 1 |
| 1998 | 2 | 0 |
| 1997 | 2 | 0 |
| 1996 | 4 | 0 |
| 1995 | 6 | 0 |
| 1994 | 1 | 0 |
| 1993 | 3 | 0 |
| 1992 | 2 | 0 |
| 1991 | 2 | 0 |
| 1990 | 2 | 0 |
| 1983 | 1 | 0 |
| 1982 | 2 | 0 |
| 1981 | 1 | 0 |
| 1974 | 3 | 0 |
| 1972 | 1 | 0 |
| 1969 | 1 | 0 |
| 1965 | 1 | 0 |
| 1962 | 3 | 0 |
| 1960 | 1 | 0 |
| 1957 | 5 | 0 |
Search your address
See every tornado that passed within 25 miles of a place in Blaine County, measured to its path.
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