The National Weather Service (NWS) issues Severe Thunderstorm Warnings when severe thunderstorms are imminent or occurring. These storms can produce large hail, damaging winds, and tornadoes.
Causes:
Severe thunderstorms form when warm, moist air rises rapidly into the atmosphere, colliding with cold, dry air. This creates instability and can lead to the development of strong updrafts and downdrafts. Other factors that contribute to severe thunderstorm formation include wind shear (changes in wind speed and direction with height) and the presence of a dryline (a boundary between moist and dry air masses).
What to do to be safe:
- Stay informed: Monitor weather forecasts and warnings from the NWS.
- Take shelter: If a Severe Thunderstorm Warning is issued for your area, seek shelter immediately in a sturdy building, such as a basement or interior room on the lowest floor.
- Avoid windows: Stay away from windows and doors during the storm.
- Unplug electronics: Unplug electronic devices to protect them from power surges caused by lightning.
- Stay indoors: Do not go outside during the storm, even if it appears to be over.
- Be aware of flooding: Flash flooding can occur with severe thunderstorms, so avoid low-lying areas and flooded roadways.
Additional tips:
- Have a plan: Develop a family emergency plan and practice it regularly.
- Build an emergency kit: Assemble an emergency kit with essential supplies, such as water, food, a first-aid kit, and a flashlight.
- Sign up for alerts: Register for emergency alerts from your local government or wireless carrier.
By following these safety tips, you can protect yourself and your family from the dangers of severe thunderstorms.