Understanding the Difference Between Thunderstorm Watches and Warnings

What is a Severe Thunderstorm Watch?

A severe thunderstorm watch means that atmospheric conditions are favorable for the development of severe thunderstorms. Severe thunderstorms are possible in and near the watch area. Stay informed and be ready to act if a severe thunderstorm warning is issued.

What to Do During a Severe Thunderstorm Watch:

Monitor weather updates from local media, the National Weather Service, or NOAA Weather Radio.
Be prepared to seek shelter if necessary.
Identify a sturdy building or basement where you can take cover.

What is a Severe Thunderstorm Warning?

A severe thunderstorm warning indicates that severe weather is imminent in your area or is already occurring based on either human observation or radar detection. Severe thunderstorms may produce damaging winds, hail, lightning, and/or tornadoes.

What to Do During a Severe Thunderstorm Warning:

Take shelter immediately in a sturdy building or basement.
Stay away from windows, doors, and outside walls.
If you are outside, seek shelter in a low-lying area and avoid open fields, water, or isolated trees.