Types of Storms
Tornadoes are known for their dangerous, circular high-wind speeds that can cause major damage to a community. There are other types of storms whose winds move in straight lines instead of rotating, such as small but strong windstorms called downbursts.
Similarly, derechos are large, powerful wind events produced by severe thunderstorms. According to the National Oceanic and Atmospheric Administration, derechos cause more fatalities than EF0 and EF1 tornadoes due to derechos’ typical broad path of high winds and subsequent damage. It is common for derechos to travel at 60-70 mph and cause a wider area of damage compared to a tornado. Wind gusts exceed 58 mph along a path at least 240 miles wide and may even approach 100 mph, reaching hurricane force wind speeds, as they did in the June 2012 derecho that crossed northern and central Indiana.
Important to note: As a storm approaches, the National Weather Service will issue a Severe Thunderstorm Warning instead of calling it a derecho. A derecho classification is determined afterward.
Before a Storm
Ensure you and your family have an action plan before a windstorm hits.
- Create a disaster kit. Include flashlights for every household member, batteries, a radio and first-aid supplies. Learn more about disaster kits.
- Secure loose outdoor items so they do not blow away into buildings or roadways, causing damage or injuries. This includes lawn and patio furniture, grills, tarps, trash cans and play equipment like trampolines.
- Have a certified arborist evaluate trees close to the home to assess if parts of the tree are unhealthy or weak and pose elevated risks
- Park vehicles in a covered area or away from trees or structures that may fall.
- Install storm shutters or plywood over windows and doors if strong winds are forecasted. Windblown objects or debris could break windows.
- Sign up for weather alerts from the National Weather Service or local media sites to stay informed about changing conditions.
During a Storm
Follow these tips to stay safe while the storm passes through.
- Postpone all outdoor activities.
- Stay indoors and away from windows and doors.
- If outside, take cover in a sturdy structure or in a vehicle as a last resort.
- If driving, pull over to the side of the road. Keep your seatbelt on, lower your head below the window and cover your head and neck with your arms and a blanket.
- Do not take cover under a bridge. Strong winds can cause damage to the structure and funnel debris there.
After a Storm
Once a windstorm is over, be cautious before returning to regular activities.
- Stay at least 35 feet away from fallen power lines and report them to 911 and the power company.
- If safe, clear fallen debris away from roadways to ensure first responders can get access to areas that need assistance.
- Check your roof to look for any loose shingles or tiles. Call a professional to patch those spots before the next storm.
- Make sure that all loose objects or items you secured are still in place. Retrieve them if they blew away and if it is safe to do so.
- Watch for guidance from local officials about possible debris clearing assistance.
- Follow power outage safety tips if the storm has disrupted service.
