The US averages 100,000 thunderstorms annually, with 10,000 classified as severe. Lightning kills an average of 20 people per year.
Why Severe Thunderstorm Preparedness Matters Now
NOAA classifies thunderstorms as severe with 58+ mph winds, 1+ inch hail, or tornado production.
Essential Severe Thunderstorm Preparedness Steps
- Monitor weather forecasts and radar
- When thunder roars, go indoors
- Stay away from windows and electrical equipment
- Unplug sensitive electronics
- Secure outdoor items
- If outdoors, avoid high ground and trees
- Move vehicles under cover for hail
- Wait 30 minutes after last thunder
Severe Thunderstorm Preparedness City Guides
Our team creates detailed, city-specific preparedness guides using real-time data from FEMA, NOAA, and USGS.
New city guides are published regularly. Check back often or browse our homepage for the latest additions.
🛒 Recommended Products
These products have been tested and validated by our team. We recommend them based on quality, reliability, and effectiveness for emergency preparedness.
Belkin 12-Outlet Surge Protector – 4000 Joules, 8-Foot Cord
Advanced power strip with 12 outlets, telephone/coaxial protection, and 4000 joules of surge protection. Essential during thunderstorms.
NOAA Emergency Weather Radio – Solar & Hand Crank, 5000mAh
Stay informed during severe thunderstorms with this portable NOAA weather radio featuring solar charging and SOS alarm.
Frequently Asked Questions
What is the 30-30 rule?
If time between lightning and thunder is 30 seconds or less, go indoors. Stay inside 30 minutes after last thunder.
Can lightning strike twice?
Yes. Tall structures are struck frequently. The Empire State Building gets hit 20-25 times per year. Always seek shelter regardless of recent strikes.
What size hail causes damage?
Quarter-size (1 inch) damages vehicles. Golf ball-size (1.75 inches) cracks windshields. Baseball-size (2.75 inches) penetrates roofs.
Is a car safe?
A hard-topped metal vehicle with windows closed provides good protection. The metal shell conducts electricity around you. Convertibles offer no protection.
How far can lightning strike?
Up to 10-15 miles from the storm center, well beyond rainfall. These bolts from the blue can occur under partly cloudy skies.
Official Resources
Safety Disclaimer
This article is for informational purposes only and does not replace official guidance from local, state, or federal emergency management authorities.