If 146.940 is not operational, try 147.360, other backup frequencies are 146.970 or 146.910. Also monitored from the EOC are the 442.100 and 224.980 Mhz. repeaters, and 52.510 Mhz. simplex, as time permits. When reporting on the amateur radio network, remember to follow the instructions of the net control operator if the net is in formal operation. You may hinder other emergency reports by reporting non-severe weather criteria. Tornadoes are most frequent in the Midwest .
Tornadoes occur most often in the late afternoon or evening, and in the Spring.
But they can occur at any time of the day and in any season . Wind speeds in a tornado may exceed 300 miles per hour . An average of 100,000 thunderstorms occur each year in the United States. About 1,300 tornadoes develop from these storms . Conditions are right for tornado development, but none have been sighted.