Tornado warning
Weathergov Active Alerts. Warning times vary in the range of 10 to 15 minutes. Tornado Warning Sign Square Sticker A tornado warning is issued when a tornado is sighted or indicated by weather radar. . A tornado warning means a tornado has been sighted or that there is a strong indication on radar that a tornado is in progress. For tornado warnings some storms with little or no radar-detected rotation can produce weak tornadoes. A severe weather warning means that severe weather is occurring imminent or likely in the location indicated and is a threat to life and property. Sometimes tornadoes strike quickly without time for a tornado warning. It can be issued after a tornado funnel cloud and rotation in the clouds has been witnessed by the public storm chasers emerge. TOR is a severe weather warning product issued by regional offices of weather forecasting agencies throughout the world to alert the public when a tornado has...