Valley County, MT Environment & Hazard Risk

• HailRelatively Moderate$1.49M/yr expected annual loss, about 1.4 events a year
• Cold waveRelatively Moderate$5.12M/yr expected annual loss, about 19 events a year
• Winter weatherRelatively Moderate$94.24K/yr expected annual loss, about 19 events a year
• WildfireVery Low$45.03K/yr expected annual loss, about once every 1,186 years
• LandslideVery Low$751/yr expected annual loss, about 1.2 events a year
• DroughtRelatively Low$52.9K/yr expected annual loss, about 37 events a year
• Heat waveVery Low$98.38K/yr expected annual loss, about 2.4 events a year
• EarthquakeVery Low$36.31K/yr expected annual loss, about once every 2,740 years
• Strong windRelatively Low$148K/yr expected annual loss, about 1.3 events a year
• LightningVery Low$52.38K/yr expected annual loss, about 26 events a year
• TornadoVery Low$134K/yr expected annual loss, about once every 2 years
• Ice stormVery Low$4,077/yr expected annual loss, about once every 67 years

Bars show the national percentile score (0 to 100) for each hazard. Dollar figures are expected annual losses to buildings, people and crops. Not rated here: avalanche, coastal flooding, hurricane, riverine flooding, tsunami, volcanic activity.

Check the flood zone for an address

Homes with flood insurance

17 of 5,960 (0.3%)

Homes in high-risk flood zones

0

Flood claims since 1978

250

Claims paid since 1978

$1.53M

• Thunderstorm Wind513
• Hail432
• High Wind161
• Drought101
• Flood85
• Winter Storm54
• Dense Fog51
• Extreme Cold/Wind Chill47
• Heavy Snow41
• Winter Weather41 · 1 death

• Hail3" hail06/16/2007

  Glasgow, Valley County

  $23M damage

  What happened

  Hail up to three inches in size accompanied by winds around 70 mph caused significant damage throughout the city of Glasgow and outlying areas to the west, south and east. See entire episode narrative for full details.

• Winter Weather11/14/2010

  Central and Southern Valley

  1 death

  What happened

  Valley County Law Enforcement reported an auto accident on Highway 24 about 3 miles southeast of Glasgow. Occupant was believed to loose control on icy patch on bridge and was partially ejected.

• Hail2.75" hail06/17/2007

  Nashua, Valley County

  $8M damage

  What happened

  One hundred percent of the businesses and homes in the town were damaged from the combination of large hail and damaging winds. Many vehicles also had significant damage. Damages included roofing, windows, gutters, siding, trees and gardens. See entire episode narrative for full details.

• Blizzard02/10/2004

  Central and Southern Valley

  3 injured

  What happened

  A blizzard affected most of northeast Montana, beginning during the late morning and early afternoon hours on the 10th. Strong low pressure dropped south out of Saskatchewan and into central North Dakota during the afternoon and evening. A strong cold front associated with the low swept across all of northeast Montana during the afternoon. Northwest winds increased to 30 to 50 mph with many areas reporting frequent gusts to 60 mph. A peak wind gust of 77 mph was reported in Glendive during the afternoon. Periods of snow fell during the afternoon and night. Most of the snow that fell was light and snow accumulations were generally on the order of a couple of inches. The strong wind produced severe blowing and drifting snow, and there were numerous reports of whiteout conditions with the visibility reduced to near zero. By the evening of the 10th, all roads across northeast Montana were either closed, or open to emergency travel only. All roads connecting northeast Montana with North Dakota were closed at one time or another, including Interstate 94. Many towns across northeast Montana were isolated during the afternoon and night time hours due to the road closures. At...

• Winter Weather01/11/2006

  Central and Southern Valley

  2 injured

  What happened

  An area of freezing rain fell in the Milk and Missouri River Valleys from about 20 miles west of Glasgow in Valley County to just west of Poplar in Roosevelt County. Rainfall amounts of two to five hundredths of an inch caused roads to become icy and led to two bad vehicle accidents on Highway 2, west of Poplar. Two people suffered broken bones in the accidents. An accident occurred approximately 6 miles north of Glasgow on the St. Marie Highway. A vehicle slid off the road due to the slippery conditions, but no injuries were reported. There was another vehicle accident due to the icy roads north of Nashua. A Montana Department of Transportation vehicle towing a trailer hit ice and the trailer swing around and hit the towing vehicle. There were no injuries reported. A school bus in Glasgow slid off the road and into a ravine, but there were no injuries reported.

• Hail4.5" hail07/22/1999

  Glasgow, Valley County

  $1.6M damage

  What happened

  Two supercell thunderstorms moved across northeast Montana causing a path of damage that extended from southern Phillips county to the North Dakota border. The hardest hit was the community of Glasgow where 4.5 inch hail fell damaging cars, roofs, windows and trees as it passed. The largest hail fell from downtown Glasgow near the courthouse northeast to the local Ford dealership. The storms continued east where they produced at least two tornado touchdowns in rural areas. Large hail continued to be reported along the Highway 2 corridor. A tornado touchdown was reported in Bainville where railroad cars were blown off of the tracks.

• Heavy Rain07/30/2026

  Duck Creek, Valley County

• Thunderstorm Wind57 kt wind07/26/2026

  Opheim, Valley County

• Excessive Heat07/25/2026

  Northern Valley

• Excessive Heat07/25/2026

  Central and Southern Valley

• Dense Fog07/16/2026

  Central and Southern Valley

• Excessive Heat07/12/2026

  Central and Southern Valley

• Excessive Heat07/12/2026

  Northern Valley

• Heavy Rain07/04/2026

  Glasgow, Valley County

• Glasgow City ofServes 3,253 · Surface water · Local governmentNo health violations+2 monitoring or reporting
• Fort Peck Rural County Water DistrictServes 663 · Purchased surface water · Local governmentNo health violations
• North Valley County Water and Sewer DistServes 450 · Purchased surface water · Local governmentNo health violations+37 monitoring or reporting
• Nashua Town ofServes 300 · Purchased surface water · Local governmentNo health violations+22 monitoring or reporting
• Hinsdale Water DepartmentServes 250 · Groundwater · Local government1 health violation+4 monitoring or reporting
• Fort Peck Town ofServes 240 · Surface water · Local governmentNo health violations+23 monitoring or reporting
• Cherry Creek Wua GlasgowServes 180 · Groundwater · Local governmentNo health violations+20 monitoring or reporting
• Opheim Town ofServes 111 · Purchased surface water · Local government1 health violation