Southern Lewis and Clark storm history
Storm events recorded in Southern Lewis and Clark, Montana between 1950 and 2025.
349
Total events
0
Tornadoes
0
Hail
2
Floods
1
Deaths
$251K
Property damage
Most significant events
Strongest tornadoes, deadliest events, and biggest damage in this county. Up to 50 shown.
The Montana Standard Reported the following - Late Sunday morning April 28th, two fishing boats capsized on Upper Holter Lake in Southern Lewis and Clark County. The accident resulted in one fatality and sent five others to the hospital. Winter weather conditions may have played …
Wildfire Wildfire
The Matt Staff Road Fire was a fire that started on a Red Flag Warning Day approximately 5 miles east of East Helena, MT. The fire quickly spread east, given strong westerly winds the day the fire started, and ultimately burned to about 12 miles east of East Helena. The fire star…
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Ambient weather station measured a 70 mph wind gust.
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Trained spotter reported a 66 mph wind gust 11 miles W of Helena.
High Wind High Wind
Mesonet station TR276 (L-C Portable #1) measured 68 mph wind gust.
Wildfire Wildfire
The Moors Mountain Fire, first reported on July 16th at approximately 3:45 PM near the Moors Mountains in Gates of the Mountain Wilderness, was a 98 acre wildfire caused by lightning. On July 24th, crews achieved 100% containment. More than 80 personnel worked out of spike camps …
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Mesonet station mtmdp MacDonald Pass measured several gusts greater than or equal to 58 mph. Additionally, an Ambient Weather sensor in the area also measured a gust in excess of 70 mph.
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Mesonet station TR276 L-C portable no. 1 measured 67 mph wind gust.
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MDT Sieben station measured a 50 kt (58 mph) non-thunderstorm wind gust.
Heavy Snow Heavy Snow
Public report of approximately three feet of snow in the Rimini area. The road to this area was closed at the time of the report.
High Wind High Wind
Multiple sensors measured gusts of 58 mph or greater, including an ambient weather station near Joslyn Street in Helena which measured a 66 mph gust.
Dense Fog Dense Fog
KHLN observes fog with quarter mile visibility.
Dense Fog Dense Fog
KCII Chouteau Airport observed fog with quarter mile visibility.
High Wind High Wind
Trained spotter reported an estimated wind gust of 58 mph. A mesonet in the area (MacDonald Pass) measured a gust of 56 mph.
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Mesonet station mtmdp MacDonald pass (mt dot) measured a 63 mph wind gust.
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DOT sensor at MacDonald Pass measured high winds to 61 mph in the morning.
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MDT McDonald Pass measured a 52 kt (60 mph) non-thunderstorm wind gust.
Extreme Cold/Wind Chill Extreme Cold/Wind Chill
Bowmans Corner mesonet site records a wind chill of -41.
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Isolated wind gusts to 60 mph occurred in Southern Lewis and Clark County.
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MT DOT sensor at MacDonanld Pass records wind gust of 67 mph.
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Dellwo station measured a 69 kt (79 mph) non-thunderstorm wind gust.
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MDT Roger's Pass station measured a 54 kt (62 mph) non-thunderstorm wind gust.
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KHLN measured a 52 kt (60 mph) non-thunderstorm wind gust.
Wildfire Wildfire
The Dry cabin Fire was a lightning caused incident located in the Scapegoat/Bob Marshall Wilderness area northwest of Lincoln. Steep terrain and heavy fuels allowed this fire to quickly grow in size and become a long term incident and was being managed by a type 3 team by the end…
High Wind High Wind
K1GM measures 55 kt (63 mph) non-thunderstorm wind gust (distant outflow boundary).
Wildfire Wildfire
The Rock Creek Fire was discovered near mile marker 232 on interstate 15 on July, 10th, and its cause is still unknown. The fire grew to 3,420 acres and resulted in at least a several hour closure of interstate 15 between Craig and Wolf Creek, along with a few other local road cl…
Winter Storm Winter Storm
Snow and slush packed roads and reduced visibility create dangerous driving conditions on highway 200 near Roger's Pass.
Winter Storm Winter Storm
Northwest Energy reports scattered power outages due to snow and wind near the Bowman's Corner area.
Winter Storm Winter Storm
A snowfall total of 18 inches reported near Roger's Pass.
Heavy Snow Heavy Snow
Snowfall total of 14 inches observed over 48 hr period at 2 W Helena.
Heavy Snow Heavy Snow
Lincoln volunteer fire department estimated between 6 to 12 inches of snow at rogers pass. Semi jackknifed on the pass. Significant drifting of snow.
Winter Weather Winter Weather
Trained spotter reports 3.5 inches of snow.
High Wind High Wind
About 20X30 feet of metal roof torn of a building. Tree branches 6 inches in diameter snapped at bottom of a tree.
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MDT Bowman's Corner 17 SW Simms measured a 55 kt (63 mph) non-thunderstorm wind gust.
Avalanche Avalanche
Goss mesonet reports wind gust of 63 MPH.
Cold/Wind Chill Cold/Wind Chill
Mesonet station mtmdp macdonald pass (mt dot) reports wind chill of -46.
Heavy Snow Heavy Snow
New snow in the last 24 hours is 8 inches. Storm total snowfall of 11.9 inches.
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Station 8 WNW Wolf Creek measured a 54 kt (62 mph) non-thunderstorm wind gust.
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Estimated 66 kt (76 mph) non-thunderstorm wind gust reported at 18 SW Augusta.
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MDT station MTSBN (8 SSW Wolf Creek) measured a 62 kt (71 mph) non-thunderstorm wind gust.
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The Helena Airport measured a 70 kt (80 mph) non-thunderstorm wind gust.
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Helena Airport measured a 59 kt (68 mph) non-thunderstorm wind gust.
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Goss.
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Iron Ridge.
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MDT Sieben station measured a 54 kt (62 mph) non-thunderstorm wind gust.
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MDT MacDonald Pass station measured a 50 kt (58 mph) non-thunderstorm wind gust.
Winter Storm Winter Storm
Severe driving conditions reported on I15 form Dearborn to Hardy Creek due to snow and wind. Message relayed via MDT twitter.
Winter Storm Winter Storm
Severe driving conditions reported on I15 from Lincoln interchange to Sieben interchange. Relayed via twitter.
Winter Storm Winter Storm
Severe driving conditions reported on highway 12 from MacDonald Pass to Helena due to snow and winds. Relayed by twitter.
High Wind High Wind
Mesonet station Iron Ridge (6 SSE Marysville) measured a 55 kt (63 mph) non-thunderstorm wind gust.
Events by year
| Year | Events | Tornadoes |
|---|---|---|
| 2022 | 16 | 0 |
| 2021 | 25 | 0 |
| 2020 | 38 | 0 |
| 2019 | 20 | 0 |
| 2018 | 17 | 0 |
| 2017 | 11 | 0 |
| 2016 | 7 | 0 |
| 2015 | 10 | 0 |
| 2014 | 25 | 0 |
| 2013 | 9 | 0 |
| 2012 | 18 | 0 |
| 2011 | 15 | 0 |
| 2010 | 10 | 0 |
| 2009 | 9 | 0 |
| 2008 | 13 | 0 |
| 2007 | 15 | 0 |
| 2006 | 10 | 0 |
| 2005 | 7 | 0 |
| 2004 | 2 | 0 |
| 2003 | 14 | 0 |
| 2002 | 18 | 0 |
| 2001 | 13 | 0 |
| 2000 | 2 | 0 |
| 1997 | 11 | 0 |
| 1996 | 14 | 0 |