Severe Summer Weather Awareness Week: April 28-May 2
 Severe Thunderstorms 
 Test Tornado Drill 
 Flash Flooding 
Severe Thunderstorm Definition
What is a Severe Thunderstorm Watch?

The National Weather Service in Bismarck issues Severe Thunderstorm Warnings for 36 counties across western and central North Dakota.

A Severe Thunderstorm is defined as a thunderstorm capable of producing:

  • Wind gusts of 58 mph or greater and/or
  • Hail of one inch in diameter or larger

In addition to damaging winds and large hail, severe thunderstorms are also capable of producing tornadoes, flash flooding and deadly lightning.


Severe Thunderstorm Safety Tips
  • Stay away from windows!! Flying debris and wind driven hail can break windows sending shards of glass through the air.
  • If camping, seek shelter inside a sturdy building as campers/RVs can be easily flipped by damaging winds associated with severe thunderstorms. Falling trees and large hail can easily penetrate the thin walls of a tent.
  • Those in mobile homes should go to their designated storm shelter. Destructive straight-line winds are capable of causing significant damage to mobile homes.
  • Severe thunderstorms are capable of producing tornadoes with little warning. Stay tuned to NOAA Weather Radio or your favorite media outlet for frequent weather updates.
2013 Hail Reports
2013 Wind Reports is the U.S. government's official web portal to all federal, state and local government web resources and services.