Bennett County, SD Environment & Hazard Risk

• WildfireRelatively Low$514K/yr expected annual loss, about once every 255 years
• Winter weatherRelatively Low$46.8K/yr expected annual loss, about 15 events a year
• DroughtRelatively Low$117K/yr expected annual loss, about 48 events a year
• Cold waveRelatively Low$415K/yr expected annual loss, about 5.1 events a year
• HailRelatively Low$105K/yr expected annual loss, about 3.6 events a year
• Ice stormVery Low$14.5K/yr expected annual loss, about once every 6 years
• LightningRelatively Low$50.8K/yr expected annual loss, about 38 events a year
• Strong windRelatively Low$99.3K/yr expected annual loss, about 2.4 events a year
• LandslideVery Low$61/yr expected annual loss, about once every 3 years
• TornadoVery Low$121K/yr expected annual loss, about once every 3 years
• EarthquakeVery Low$13.1K/yr expected annual loss, about once every 1,464 years
• Heat waveVery Low$22.3K/yr expected annual loss, about 2.0 events a year

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 in high-risk flood zones

0

• Hail198
• Thunderstorm Wind139
• High Wind55
• Winter Storm54
• Winter Weather32
• Blizzard21
• Tornado16
• Heavy Snow10
• Flood7
• Extreme Cold/Wind Chill6

• Blizzard04/05/1997

  Bennett

  $50M damage

  What happened

  Snowfall of 1 to 2 feet was common over the northern Black Hills and northwest plains of South Dakota with 6 to 12 inches reported elsewhere. Maximum snowfall was 34 inches at Lead. Drifts of 5 to 15 feet developed as sustained winds over 45 mph with frequent gusts over 60 mph ripped across the area for nearly 24 hours. Peak winds included 71 mph at Ellsworth AFB, 69 mph at Rapid CIty, 70 mph at Buffalo, and 67 mph at Winner. Almost all roads were blocked or closed and other forms of travel were impossible. Travel was banned in most areas and many emergency response activities were made impossible. Widespread power outages occurred. East of the Black Hills, the problems were compounded by the heavy rain and sleet that fell before the blizzard developed. Hardest hit by the blizzard were ranchers who suffered major livestock losses as calving season was underway.

• TornadoEF1, 0.1 mi path, 20 yd wide05/29/2013

  Allen, Bennett County

  1 injured, $100K damage

  What happened

  A tornado touched down on the west side of Allen Road south of Allen and rolled a mobile home down a hill. It tore off the roof and collapsed several walls of a small stick built house on the east side of the road before dissipating.

• Thunderstorm Wind70 kt wind05/29/2013

  Allen, Bennett County

  1 injured, $25K damage

  What happened

  Straight-line wind damage was observed along BIA Road 22 southeast of Allen. The winds tore part of the roof off a small building and ripped shingles and metal roofing off two houses. A mobile home was rolled and completely smashed. A large cottonwood tree was snapped.

• Hail2.5" hail07/20/2010

  Vetal, Bennett County

  $750K damage

  What happened

  The combination of large hail and gusty winds damaged property and flattened a variety of crops. Over 1000 acres of corn were stripped.

• Flood05/22/2019

  Allen, Bennett County

  $750K damage

  What happened

  Three roads were completely washed out and several other roads throughout the county were damaged.

• Hail1.75" hail08/18/2011

  Martin, Bennett County

  $700K damage

  What happened

  Large hail damaged buildings and vehicles in Martin.

• MartinServes 1,500 · Groundwater · Local governmentNo health violations