Radar reflectivity associated with F1 tornado in northern Chemung County

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Thu 1931Z (2:31 PM EST) 16-Nov-2006

Thu 1940Z (2:40 PM EST) 16-Nov-2006

Thu 1952Z (2:52 PM EST) 16-Nov-2006
850 mb jet and precipitable water

Slide Links:

Speaker Notes:

The data on the next few slides focuses on radar data associated with the F1 tornado over Chenango county. The reflectivity data on these slides shows a bowing convective line moving northeast across Chemung county. The tornado occurred on the north side of a break in the line. This "broken S" radar reflectivity signature has been identified in many other cases featuring damaging winds and weak tornadoes. Note that several other "broken S" signatures also occurred on this day, with no tornado touchdowns. Experience with these features indicate that they occasionally, but rarely, produce tornadoes, however they frequently producing damaging straight-line winds.

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