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| 20250304145758 | Glendive | MT | Yellowstone River | 03/26/2025 | 2025 | Break-up | 47.05417 | -104.75695 | - | - | released | no flooding reported | Break up jam formed on the Yellowstone River south of Glendive, MT. |
| 20250304143953 | Sidney | MT | Yellowstone River | 03/03/2025 | 2025 | Break-up | 47.81862 | -103.98178 | - | - | released | Lowland flooding reported. | Break up jam formed on the Yellowstone River near Sydney, MT. |
| 20250226160503 | Miles City | MT | Tongue River | 02/25/2025 | 2025 | Break-up | 46.408846 | -105.866407 | - | - | released | No flooding was reported. | Break-up jam formed on the Tongue River near the confluence with the Yellowstone River. |
| 20250211152331 | Ennis | MT | Madison River | 02/08/2025 | 2025 | Break-up | 45.342109 | -111.724537 | - | - | released | Minor flooding was reported. | A series of break-up jams on the Madison River near Ennis, MT, is causing lowland flooding. A flood advisory has been issued. |
| 20240116140428 | Twin Bridges | MT | Beaverhead River | 01/15/2024 | 2024 | Freeze-up | 45.521627 | -112.338947 | - | - | released | Minor flooding reported as far upstream as Dillon, MT, and major flooding reported in Dillon itself. Flood watch cancelled on 22 January. | Ice jam occurred on the Beaverhead River upstream of Twin Bridges, MT. |
| 20240123210322 | Foster | MT | Bighorn River | 01/15/2024 | 2024 | Freeze-up | 45.93745 | -107.57335 | - | - | released | Minor flooding was reported near Foster at the Custer Fishing Access. | Ice jam occurred just downstream of Foster, MT, on the Bighorn River. |
| 20240116163331 | Livingston | MT | Yellowstone River | 01/14/2024 | 2024 | Freeze-up | 45.419741 | -110.642043 | - | - | released | No flooding was reported. | Ice jam occurred near the Mill Creek Rd Bridge in the Paradise Valley south of Livingston, MT. |
| 20240123195937 | Ennis | MT | Madison River | 01/13/2024 | 2024 | Freeze-up | 45.345 | -111.72468 | - | - | released | Minor flooding was reported. | Ice jam occurred near Ennis, MT, on the Madison River. |
| 20240116132638 | Logan | MT | Gallatin River | 01/12/2024 | 2024 | Freeze-up | 45.88845 | -111.42094 | - | - | released | Minor flooding of surrounding lowlands reported. | Ice jam reported somewhere between Missouri River Headwaters State Park and Gallatin Forks. Gage record from Logan suggests the jam is likely between Logan and the State Park. Pinpoint is very approximate. |
| 20240111155559 | Sappington | MT | Jefferson River | 01/04/2024 | 2024 | Freeze-up | 45.803607 | -111.75158 | - | - | released | No flooding was reported. | Ice jam occurred near the Sappington Jct Bridge on the Jefferson River. Reported by Gabe Walsh, Montana DOT. |
| 20230327011444 | Broadus | MT | Powder River | 03/23/2023 | 2023 | Break-up | 45.44816 | -105.394719 | - | - | released | Minor flooding near Broadus reported. | Ice jam reported northeast (downstream) of Broadus, MT. Reported released by local news 27 March. |
| 20230327011630 | Broadus | MT | Powder River | 03/23/2023 | 2023 | Break-up | 45.370399 | -105.495415 | - | - | released | Minor flooding reported. | Ice jam reported south (upstream) of Broadus, MT. |
| 20230201205025 | Fort Benton | MT | Missouri River | 01/30/2023 | 2023 | Freeze-up | 47.84295718 | -110.59429227 | - | fbnm8 | released | None reported | Ice jam reported near Loma MT on facebook, photos show likely freeze up jam. Planet imagery shows multiple collections of ice upstream of bends and mid-stream islands on the river between Fort Benton and Loma. Stage rise on gage at Fort Benton MT. Stages are well below flood level and the jam appears to have partially released on 1 Feb.
https://www.kxlf.com/weather/ice-jam-causes-8-foot-rise-on-missouri-river-in-fort-benton?_amp=true
By: Erik Johnson
Posted at 6:16 PM, Feb 01, 2023 and last updated 2023-02-02 14:12:17-05
The Missouri River at Fort Benton reached its highest level in over 10 years (since January 15th, 2013) on Wednesday morning, following an ice jam downstream in Loma. The USGS gauge recorded an 8-foot water level rise from Tuesday afternoon through Wednesday morning.
Around 9:30 AM on Wednesday, the river crested at 9.67 feet before quickly receding Wednesday afternoon. While this is the highest the river has been in some time, this level is 4 feet shy of flood stage (13.5 ft.).
According to the USGS, Front Street in Fort Benton floods at 13.5 feet. Main, Franklin and Washington Streets become inundated at 18.5 feet. The Missouri River at Fort Benton has only reached flood stage 8 times since record-keeping began in 1891.
Missouri River @
Fort Benton crest Date
1 18.50 feet June 6th, 1908
2 16.39 feet February 9th, 1996
3 14.37 feet January 12th, 1968
4 14.14 feet January 11th, 1973
5 14.00 feet January 15th, 1974
6 13.64 feet January 30th, 1984
7 13.57 feet June 5th, 1953
8 13.53 feet January 18th, 1970
Temperatures have risen 50 to 60 degrees since the weekend in many parts of the state. As temperatures warm above freezing, the ice breaks apart and begins to flow downstream. In many case, the ice becomes lodged in tight or curved portions of the river obstructing the flow of water completely.
Ice jams form and break unexpectedly causing flooding upstream or a sudden rush of water downstream, respectively. The majority of ice jams in Montana occur in February and March. Montana reports the largest number of ice jams and attributed deaths.
Riverfront property owner or homeowners with properties in floodplains should remain vigilant this time of year, especially during times of large temperature fluctuations. |
| 20230105015807 | Fishtail | MT | Rosebud Creek | 12/24/2022 | 2023 | Break-up | 45.45302634 | -109.50744867 | - | - | released | Flooding of basements and first stories of several structures in the town of Fishtail | An ice jam that formed somewhere on West Rosebud Creek upstream of the town of Fishtail apparently breached resulting in a significant flood wave accompanied by a large ice run. Video posted to Facebook shows that the ice and water exceeded the capacity of the Nye Road bridge diverting flow into homes, businesses and the US Post Office. Media reports indicate water damage and flooding of several structures in Fishtail. The exact location of the ice jam is unknown and the lat/lon for this jam is downstream where the ice run and flooding was documented.
https://billingsgazette.com/news/local/photos-ice-jam-on-west-rosebud-creek-in-fishtail-causes-flooding-damages-homes-and-property/collection_e85a46a4-87ce-11ed-aef1-3f34717879ec.html#1
www.facebook.com/1239729232/videos/pcb.10223418890920687/1229988674565129 |
| 20221227170555 | Ennis | MT | Madison River | 12/20/2022 | 2023 | Freeze-up | 45.358213 | -111.714961 | - | - | released | Flooding of Lions Club Park in Ennis reported. | A freeze-up jam occurred between Ennis Lake and Ennis (location approximate). Water has backed up and is flooding Lion's Club Park. |
| 20221227171929 | Logan | MT | Galliton River | 12/19/2022 | 2023 | Freeze-up | 45.886091 | -111.441075 | - | - | released | Minor flooding of lowlands was reported. | Several freeze up jams have been reported on the Galliton River near Logan, MT. Minor flooding of lowlands was reported. Flood advisory lifted 29 Dec. |
| 20220125194121 | Fort Shaw | MT | Sun River | 01/22/2022 | 2022 | Freeze-up | 47.520074 | -111.793901 | - | - | released | Minor flooding has been reported. | An ice jam occurred near the confluence of the Sun River and Adobe Creek near Fort Shaw, MT. Water is being redirected from the Sun River into Adobe Creek. |
| 20220112011430 | Ennis | MT | Madison River | 01/07/2022 | 2022 | Unknown | 45.348437 | -111.718098 | - | - | released | Minor flooding occurred in the area of Lions Park in Ennis, MT. | - |
| 20220107175247 | Logan | MT | Gallatin River | 01/03/2022 | 2022 | Unknown | 45.885356 | -111.438286 | - | LOGM8 | released | Minor flooding occurred on agricultural land next to the Gallatin River near Logan, MT. | - |
| 20210216225608 | Belgrade | MT | Yellow Dog River | 02/16/2021 | 2021 | Freeze-up | 45.743323 | -111.251583 | - | - | released | - | An ice jam was reported along Yellow Dog Creek near Belgrade, MT. Gallatin County Sheriff's Office reported an ice jam on Yellow Dog Creek. Cameron Bridge Road is closed between Linney Road and Highline Road, west of Belgrade, due to water over the roadway. |
| 20210119210206 | Three Forks | MT | Jefferson River | 01/13/2021 | 2021 | Unknown | 45.897778 | -111.595833 | - | TFKM8 | released | - | An ice jam was reported along the Jefferson River near Three Forks, MT. Although the stream gage data fluctuated around minor flood stage, no reports of flooding were received. Water levels subsequently receded and a flood advisory for the area was cancelled. |
| 20210105222801 | Three Forks | MT | Jefferson River | 12/27/2020 | 2021 | Unknown | 45.897778 | -111.595833 | - | tfkm8 | released | - | An ice jam was reported along the Jefferson River near Three Forks, MT. Minor flooding of low lying areas immediately adjacent to the river occurred but no damages were reported. |
| 20200311175256 | Glasgow | MT | Willow Creek | 03/03/2020 | 2020 | Break-up | 48.149566 | -106.609493 | - | - | released | - | An ice jam was reported along Willow Creek just above the confluence with the Milk River southeast of Glasgow, MT. No flooding was reported. |
| 20200311175116 | Glendive | MT | Yellowstone River | 03/02/2020 | 2020 | Break-up | 47.105888 | -104.7184 | - | GLNM8 | released | - | An ice jam occurred along the Yellowstone River in Glendive, MT. The ice jam caused stages to just reach minor flood stage but no impacts were reported. |
| 20200121220224 | Cascade | MT | Missouri River | 01/14/2020 | 2020 | Freeze-up | 47.268835 | -111.695088 | - | CASM8 | released | - | At Cascade, the river has risen to 12.13-ft as of 1130 pm Tuesday evening, which is one-half foot higher than the level reached in March 2019 when ice jam flooding occurred. Minor flooding may already be occurring along and upstream of Cascade. Near and upstream of Cascade, ice and river water may begin to push onto the river banks and cause flooding of low-lying areas, including some roads and personal property. |
| 20200121221116 | Virgelle | MT | Missouri River | 01/11/2020 | 2020 | Freeze-up | 48.015308 | -110.250185 | - | - | released | - | - |
| 20200121220713 | Choteau | MT | Spring Creek | 01/11/2020 | 2020 | Freeze-up | 47.808409 | -112.171595 | - | - | released | - | - |
| 20200107204018 | Great Falls | MT | Missouri River | 12/31/2019 | 2020 | Released | 47.506944 | -111.313333 | - | GFSM8 | released | - | Minor flooding was reported as water came out of the river banks and flooded the sidewalk between Central Avenue Bridge and the 9th Street Bridge in Great Falls, MT. |
| 20190402212349 | Landusky | MT | Missouri River | 03/27/2019 | 2019 | Break-up | - | - | - | LDKM8 | Causing Flooding | - | A big ice jam has inundated central Montana's James Kipp Recreation Area with as much as 10 feet of water, said Ben Phillips, coordinator of Fergus County Disaster and Emergency Services. "It's just a massive ice jam," Phillips said of the cause of the flooding. The Missouri River at the James Kipp rose from about 29.5 feet Tuesday to 36.4 feet Wednesday due to snowmelt runoff and the ice jam. It since has risen to 37 feet, according to the National Weather Service in Great Falls. The record stage at this location was 34.17 feet. The National Weather Service said in a flood update it issued that the river gauge might have been damaged because data stopped transmitting Wednesday evening.
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| 20190326165048 | Old Fort Gilbert | MT | Yellowstone River | 03/25/2019 | 2019 | Break-up | - | - | - | - | Unknown | - | 1111 AM MDT TUE MAR 26 2019...A FLOOD WARNING FOR MAIN STEM FLOODING ON THE MISSOURI (should be Yellowstone) RIVER DUE TO AN ICE JAM REMAINS IN EFFECT UNTIL 1045 AM MDT SATURDAY FOR EASTERN RICHLAND COUNTY...At 1106 AM MDT, emergency management reported flooding and evacuations from around road 131 down to road 129 including the Fort Gilbert area. Flooding will remain over these areas of eastern Richland County. Flooding due to ice jams on the Missouri (Yellowstone) river are backing water up into residences and ranches within the warning area.
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| 20190326164619 | Lavina | MT | Musselshell River | 03/24/2019 | 2019 | Break-up | - | - | - | LVNM8 | Not Flooding | - | 1132 AM MDT Mon Mar 25 2019...The National Weather Servi_c_e in Billings has issued a Flood Warning for the following rivers in Montana...Musselshell River near Lavina affecting Golden Valley County. A combination of snow melt and ice jams will cause the Musselshell River at Lavina to be above Flood Stage today.
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| 20190326163235 | Glasgow | MT | Milk River | 03/23/2019 | 2019 | Break-up | - | - | - | GLWM8 | Causing Flooding | - | Snowmelt and some ice jamming has forced the levels of the Milk River to rise. Flooding is expected to last through mid-week, but through next weekend in the Tampico area.
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| 20190326163637 | Vaughn | MT | Muddy Creek | 03/23/2019 | 2019 | Break-up | - | - | - | - | Unknown | - | 246 PM MDT Sat Mar 23 2019 The Flood Watch is now in effect for* A portion of Central Montana, mainly for the Muddy Creek near Vaughn in Cascade County. Some minor flooding is also possible for the Sun River, from the city of Sun River eastward to the west side of the city of Great Falls.* Through Sunday afternoon* An ice jam is currently elevating water levels along portions of Muddy Creek near Vaughn. Minor flooding is possible if ice jams continue to stall water flows. Ice jams may also impact portions of the Sun River. * Minor flood stage on Muddy Creek is 12 feet.
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| 20190326162345 | Hysham | MT | Yellowstone River | 03/21/2019 | 2019 | Break-up | - | - | - | - | Released | - | 21 Mar 2019* At 759 PM MDT, Treasure county Emergency Management reported flooding from an ice jam on the Yellowstone river near Hysham. Additional ice jam formation and flooding is expected in the warned area as the ice moves downstream over the next 12 to 18 hours.* Some locations that will experience flooding include..Low lying areas adjacent to the Yellowstone river in Treasure and Rosebud counties.
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| 20190326165403 | Miles City | MT | Tongue River | 03/20/2019 | 2019 | Break-up | - | - | - | MICM8 | Not Flooding | - | Wednesday. 20 Mar 2019* At 835 AM MDT, emergency management reported flooding along the Tongue river at Miles City due to an ice jam. Flooding is likely occurring from Miles City upstream several miles from the ice jam. Expect rapid increases in water along the Tongue river near Miles City until the ice jam clears. At 345 PM MDT, Custer county Emergency Management reported that the ice jam had broken and water was flowing on both the Tongue and Yellowstone river in the Miles City vicinity. With the ice jam broken the threat of flooding has diminished, and the flood warning has been cancelled.
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| 20190326162852 | Glendive | MT | Yellowstone River | 03/20/2019 | 2019 | Break-up | - | - | - | GLNM8 | Not Flooding | - | 236 AM MDT FRI MAR 22 2019 * At 230 AM MDT, reporting gauges indicate that the Yellowstone River has risen to 53.9 feet at Glendive. Flood stage is 53.5 feet. Ice jams on the Yellowstone River will cause rapid changes in river levels across Dawson County. * Runoff from snow melt will continue to bring flooding to small streams and low lying areas across Dawson County.
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| 20190305155304 | Fishtail | MT | West Rosebud Creek | 03/05/2019 | 2019 | Freeze-up | - | - | - | - | Not Flooding | - | Local law enforcement reported an ice jam along West Rosebud Creek and Branch Creek in and near Fishtail. Water has been reported over the roadway along State Highway 419. |
| 20190226161103 | Logan | MT | Gallatin River | 02/26/2019 | 2019 | Freeze-up | - | - | - | - | Causing Flooding | - | - |
| 20190226160530 | Ennis | MT | Madison River | 02/20/2019 | 2019 | Freeze-up | - | - | - | - | Causing Flooding | - | - |
| 20190219160403 | Cascade | MT | Missouri River | 02/19/2019 | 2019 | Freeze-up | 47.19624722 | -111.7739083 | - | - | Causing Flooding | - | Reports indicate minor flooding and road closure along Sheep Creek Road. |
| 20190212202923 | Twin Bridges | MT | Jefferson River | 02/05/2019 | 2019 | Break-up | 45.614167 | -112.329167 | - | - | Causing Flooding | - | - |
| 20190129211948 | Terry | MT | Yellowstone River | 01/21/2019 | 2019 | Freeze-up | 46.79958611 | -105.3742222 | - | - | Not Flooding | - | - |
| 20190129211844 | Wolf Point | MT | Missouri River | 01/20/2019 | 2019 | Freeze-up | 48.067325 | -105.5330972 | - | - | Not Flooding | - | - |
| 20190122174717 | Great Falls | MT | Missouri River | 01/18/2019 | 2019 | Freeze-up | 47.51174444 | -111.3100056 | - | - | Not Flooding | - | - |
| 20180409165025 | Saco | MT | Beaver Creek | 04/03/2018 | 2018 | Break-up | 48.42081911 | -107.27110473 | 11383500 | SACM8 | Released | - | - |
| 20180327180027 | Savage | MT | Yellowstone River | 03/24/2018 | 2018 | Break-up | 47.46892133 | -104.30075819 | 01189995 | SIDM8 | Released | minor flooding | - |
| 20180327180249 | Fairview | MT | Yellowstone River | 03/24/2018 | 2018 | Break-up | 47.79675771 | -104.07270995 | 01189995 | SIDM8 | Released | Minor flooding was reported in Richland Park, along County Road 130 and in much farmland. | - |
| 20180327175712 | Glendive | MT | Yellowstone River | 03/23/2018 | 2018 | Break-up | 47.0605831 | -104.75566474 | 01189995 | GLNM8 | Released | - | - |
| 20180327175102 | Miles City | MT | Yellowstone River | 03/23/2018 | 2018 | Break-up | 46.4095151 | -105.86756034 | 11383500 | MILM8 | Released | - | - |
| 20180327174809 | Winnett | MT | Dovetail Creek | 03/22/2018 | 2018 | Break-up | 47.27496565 | -107.96444698 | 11383500 | MSBM8 | Released | minor flooding in the Crooked Creek Recreation Area. | - |