Thunderstorms & Lightning
Thunderstorms are dangerous. They can produce lightning, tornadoes, wind, hail, and flash flooding. When there's a severe thunderstorm risk, the National Weather Service issues alerts. Sign up to receive emergency alerts.
Severe Thunderstorm Watch: severe thunderstorms* possible
Severe Thunderstorm Warning: severe thunderstorms are happening or are about to happen
*Severe Thunderstorm: winds of 58 mph or more and/or hail one inch in diameter or bigger