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Subject : L5) How long after landfall are TC tornadoes a threat?

Contributed by Bill McCaul (USRA) and Bart Hagemeyer (NWS)

TC's may spawn tornadoes up to about three days after landfall. Statistics show that most of the tornadoes occur on the day of landfall, or the next day. However, many of the largest outbreaks have occurred two days after TC landfall, as the TC remnants interact with midlatitude weather systems. The most likely time for tornadoes is during daylight hours, although they can occur during the night too (McCaul, 1991).

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Last updated October 4, 2006

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