Tornado winds average 100 mph, but can exceed 300 mph. The strongest tornadoes develop from severe thunderstorms in atmospheric conditions with a wind profile that varies with height. May. A secondary season occurs in the Fall, typically November and December.
Most tornadoes occur in the afternoon and evening.
However, tornadoes have occurred in every hour of the day and night and every month of the year. No time of day or year is immune to tornado occurrences. Your Safety will improve if you stay alert to the risk of tornadoes from thunderstorms that approach. Conditions should be carefully monitored when severe thunderstorms are occurring, or are expected to occur. Severe Thunderstorms can produce tornadoes with little or no warning.