Weba tornado warning is issued by your local noaa national weather service forecast office meteorologists who watch the weather 24/7 over a designated area. Webthe alerts web service displays nws watches, warnings, advisories, and similar products. Webmay 15, 2023 · nws watch, warning, advisory display. Click on the nws warnings and advisories map above for more details. Severe weather information from the storm prediction center. Weba tornado is a violently rotating column of air extending from the base of a thunderstorm down to the ground.