TornadoLookup

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Little Rocky Mountains County, Montana

Tornadoes, hail, floods and severe storms recorded here between 2002 and 2026, from NOAA's Storm Events Database. Search an address to see which tornadoes came closest to it.

0
Tornado reports
0
Hail reports
0
Floods since 1996
279
All events
0
Deaths
$301K
Property damage

Year by year

20022026
Hover or tap a bar to see that 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.

May 1, 2026 · Little Rocky Mountains, Montana
Drought Drought
D2 drought conditions, already in place from the previous month, expanded slightly eastward in the third week of May to cover more of this zone in southwestern Phillips County.
April 23, 2026 · Little Rocky Mountains, Montana
High Wind High Wind
The Zortman BLM RAWS site (ALDM8) recorded a wind gust of 66 mph.
April 2, 2026 · Little Rocky Mountains, Montana
Winter Weather Winter Weather
Phillips County Sheriff's office reported severe driving conditions with several inches of slush on Highway 191, resulting in slide-offs and road closures.
April 1, 2026 · Little Rocky Mountains, Montana
Drought Drought
The western side of southwest Phillips County remained in D2 drought conditions for the entire month of April.
March 17, 2026 · Little Rocky Mountains, Montana
High Wind High Wind
Multiple observations in southwest Phillips County recorded wind gusts in excess of 60 mph, the strongest of which was 76 mph, measured at the Zortman BLM RAWS site (ALDM8).
March 13, 2026 · Little Rocky Mountains, Montana
Heavy Snow Heavy Snow
A Co-Op observer in Zortman reported 8 inches of new snowfall.
March 12, 2026 · Little Rocky Mountains, Montana
High Wind High Wind
Multiple observations in southwest Phillips County recorded wind gusts in excess of 59 mph, the strongest of which was 74 mph, measured at the Malta South US-191 DOT site (MTMAL). Some observations from southwest Phillips County were sporadic due to power outages.
March 8, 2026 · Little Rocky Mountains, Montana
High Wind High Wind
Multiple observations in southwest Phillips County recorded wind gusts in excess of 65 mph, the strongest of which was 80 mph, measured at the Malta South US-191 DOT site (MTMAL).
March 1, 2026 · Little Rocky Mountains, Montana
Drought Drought
D2 drought conditions remained in place over the western edge of southwest Phillips County throughout the month of March.
February 26, 2026 · Little Rocky Mountains, Montana
High Wind High Wind
Wind gusts in excess of 58 mph were common in southwest Phillips County. The Zortman BLM RAWS site (ALDM8) measured a maximum wind gust of 62 mph.
February 17, 2026 · Little Rocky Mountains, Montana
Drought Drought
D2 drought conditions increased from the west into the western edge of southwest Phillips County.
January 20, 2026 · Little Rocky Mountains, Montana
High Wind High Wind
The BLM Zortman E mesonet site (MTM38) measured a 58 mph wind gust.
January 17, 2026 · Little Rocky Mountains, Montana
High Wind High Wind
The BLM Zortman E mesonet site (MTM38) measured a 64 mph wind gust.
January 15, 2026 · Little Rocky Mountains, Montana
High Wind High Wind
The Zortman BLM RAWS site (ALDM8) measured a 63 mph wind gust. The Malta South US-191 DOT site (MTMAL) measured a 59 mph wind gust.
December 12, 2025 · Little Rocky Mountains, Montana
Heavy Snow Heavy Snow
A Facebook public report relayed a snowfall total measurement of 11 inches at 9E Zortman.
December 9, 2025 · Little Rocky Mountains, Montana
High Wind High Wind
The Malta South US-191 DOT site (MTMAL) measured a 64 mph wind gust.
December 1, 2025 · Little Rocky Mountains, Montana
Drought Drought
D2 and a sliver of D3 drought conditions here continued through December 29th.
November 27, 2025 · Little Rocky Mountains, Montana
Winter Storm Winter Storm
Multiple reports from Zortman trained spotters included 8 inches of snow with drifts up to two feet tall.
November 10, 2025 · Little Rocky Mountains, Montana
High Wind High Wind
The BLM Zortman E mesonet site (MTM38) recorded multiple severe wind gusts over the course of 45 minutes, peaking at 63 mph.
November 4, 2025 · Little Rocky Mountains, Montana
Drought Drought
D2 drought conditions set in across most of Southwest Phillips County while D3 drought conditions touched just the western edge of the zone throughout the month of November.
March 10, 2025 · Little Rocky Mountains, Montana
High Wind High Wind
Zortman RAWS reported a wind gust to 58 mph.
February 27, 2025 · Little Rocky Mountains, Montana
High Wind High Wind
DOT station Malta South recorded a wind gust of 63 mph.
February 23, 2025 · Little Rocky Mountains, Montana
High Wind High Wind
Winds gusted to 68 mph in the area with the highest gusts occurring Sunday, February 23rd at 130 pm.
February 3, 2025 · Little Rocky Mountains, Montana
Heavy Snow Heavy Snow
Snowfall of about 6 inches fell across southwest Phillips county from this system.
January 16, 2025 · Little Rocky Mountains, Montana
High Wind High Wind
Winds gusted to 60 mph at the Zortman BLM observation site at 232 pm July 16th.
January 11, 2025 · Little Rocky Mountains, Montana
Heavy Snow Heavy Snow
The heaviest snow occurred Saturday morning and lingered through Saturday evening, with the entire event ending around 8 PM Sunday. Around one foot of snow fell with drifts up to 3 feet.
January 3, 2025 · Little Rocky Mountains, Montana
Heavy Snow Heavy Snow
Trained spotter reported 5 to 6 inches of total snowfall.
December 18, 2024 · Little Rocky Mountains, Montana
High Wind High Wind
Mesonet observations across the area reported gusts as high as 67 mph. The highest was observed at the BLM Zortman E (MTM38).
December 8, 2024 · Little Rocky Mountains, Montana
High Wind High Wind
Wind gusts topped out at 63 mph.
November 5, 2024 · Little Rocky Mountains, Montana
High Wind High Wind
A peak wind gust of 58 mph occurred at 5:30 PM and 5:45 PM at the BLM Zortman East mesonet site (MTM38).
November 5, 2024 · Little Rocky Mountains, Montana
Heavy Snow Heavy Snow
The public reported 8.0 to 11.0 inches of snow near Zortman. Liquid equivalent was measured at 0.90 inches. Times are estimated.
October 4, 2024 · Little Rocky Mountains, Montana
High Wind High Wind
A peak wind gust of 79 mph was measured at the 9 E Zortman Matador Ranch mesonet site. Other notable wind gusts include 68 mph at Zortman 1E mesonet site (ALDM8) at 9:32 PM and 67 mph at BLM Zortman E mesonet site (MTM38) at 10:15 PM.
May 6, 2024 · Little Rocky Mountains, Montana
High Wind High Wind
Across the Little Rocky Mountains, intermittent wind speeds of at least 40 mph began in the early nighttime hours on the 6th and lasted until the afternoon of the 7th. The peak wind gust of 73 mph was recorded at the Malta South US-191 DOT site (MTMAL) at 6:30 AM on May 7th.
February 7, 2024 · Little Rocky Mountains, Montana
Heavy Snow Heavy Snow
Across the Little Rocky Mountains, measured snowfall amounts ranged from 2.0 to 6.0 inches. The greatest amount of 6.0 inches was reported by a trained spotter 8 SW Zortman.
January 17, 2024 · Little Rocky Mountains, Montana
Heavy Snow Heavy Snow
A trained spotter measured 5.5 inches of snow in Zortman. Times are estimated.
January 11, 2024 · Little Rocky Mountains, Montana
Cold/Wind Chill Cold/Wind Chill
For multiple sites across the Little Rocky Mountains, temperatures in the teens to 30s below zero and breezy winds created intermittent periods of wind chills of 40 degrees below zero or colder from the evening of the 11th into the morning of the 15th. The peak wind chill of 58 d…
November 12, 2023 · Little Rocky Mountains, Montana
High Wind High Wind
A peak wind gust of 66 mph was recorded at 12:45 AM, at the Malta South US-191 DOT site (MTMAL).
October 24, 2023 · Little Rocky Mountains, Montana
Heavy Snow Heavy Snow
A COOP Observer measured 11.0 inches of snow at the CO-OP Observer station ZRTM8 Zortman.
October 17, 2023 · Little Rocky Mountains, Montana
High Wind High Wind
A peak wind gust of 68 mph was measured at 11:45 AM at the Malta South US-191 DOT site (MTMAL).
April 19, 2023 · Little Rocky Mountains, Montana
Heavy Snow Heavy Snow
Across the Little Rocky Mountains, measured snowfall amounts ranged from 3.5 to 8.0 inches. The greatest amount of 8.0 inches was measured by a trained spotter in Zortman. Times are estimated.
April 2, 2023 · Little Rocky Mountains, Montana
High Wind High Wind
A peak wind gust of 66 mph was recorded at 6:38 AM at the Malta South US-191 DOT site (MTMAL).
April 1, 2023 · Little Rocky Mountains, Montana
Drought Drought
To start April, ongoing drought conditions at the immediate northern border of the Little Rockies against Blaine County and the eastern half of the Little Rockies were in (D1-Moderate) drought, while the remainder of the western half was in (D2-Severe) conditions. On the third we…
March 15, 2023 · Little Rocky Mountains, Montana
Heavy Snow Heavy Snow
Montana Department of Highways website reported severe driving conditions on US Highway 191 between Malta and MT Highway 66. Times are estimated.
March 10, 2023 · Little Rocky Mountains, Montana
Heavy Snow Heavy Snow
A COOP Observer reported an estimated 6.0 inches of snow in Zortman.
March 1, 2023 · Little Rocky Mountains, Montana
Drought Drought
To start March, ongoing drought conditions at the immediate northern border of the Little Rockies against Blaine County and the eastern half of the Little Rockies were in (D2-Severe) conditions while the remainder of the western half remained in (D3-Extreme) drought. On the third…
February 21, 2023 · Little Rocky Mountains, Montana
Blizzard Blizzard
Severe driving conditions were reported on the Montana Department of Highways travel map on US Highway 191 between the Malta South DOT webcam near the Zortman turnoff to just south of the Fred Robinson bridge. Severe driving conditions were also reported on the map for MT Highway…
February 20, 2023 · Little Rocky Mountains, Montana
Heavy Snow Heavy Snow
Across the Little Rocky Mountains, measured snowfall amounts ranged from 8.0 to 12.0 inches. The greatest amount of 12.0 inches was reported by the public, via Facebook at 2 E Zortman.
February 1, 2023 · Little Rocky Mountains, Montana
Drought Drought
To start February, ongoing drought conditions in the western two thirds of the Little Rocky Mountains were in (D3-Extreme) drought, while the eastern third of the Little Rocky Mountains was in (D2-Severe) conditions. On the second week of February, the immediate northern border o…
January 26, 2023 · Little Rocky Mountains, Montana
High Wind High Wind
A peak wind gust of 61 mph was measured at 9:30 AM at the BLM Zortman E mesonet site (MTM38).
January 1, 2023 · Little Rocky Mountains, Montana
Drought Drought
To start January, ongoing drought conditions in the western two thirds of the Little Rocky Mountains were in (D3-Extreme) drought, while the eastern third of the Little Rocky Mountains was in (D2-Severe) conditions. These conditions would remain the same through the end of the mo…
Events by year, as a table
YearEventsTornadoes
2026140
2025130
202490
2023140
2022270
2021180
2020150
2019150
201880
2017240
201690
201580
2014120
201340
2012170
201180
2010120
200950
200880
200740
200680
200580
200480
200360
200250