Mike Evans NOAA/NWS WFO Binghamton.  Overview of Narrow Cold Frontal Rain Bands  November 16, 2006  January 25, 2010  Summary and Conclusion.

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Presentation transcript:

Mike Evans NOAA/NWS WFO Binghamton

 Overview of Narrow Cold Frontal Rain Bands  November 16, 2006  January 25, 2010  Summary and Conclusion

 Cool season, narrow bands of heavy rain associated with cold fronts  Limited instability  Often associated with damaging winds

 5 high wind reports including an EF0 tornado and a 74 mph wind gust at the Carrier Dome.  29 flash flood reports:  Multiple houses flooded  3 feet of water on the Vestal Parkway  Mudslide on I-88 causes a multi-injury car accident  State of emergency in Hancock, NY  Report of 1.75 inches of rain in 15 minutes in Delta Lake, NY.  Flood damage at the Woodlands Inn in Wilkes- Barre

 No wind damage  31 flash flood reports  Evacuations in the town of Vestal, NY  Mudslides closed portions of I-81 and route 17

 Narrow cold frontal rain bands have produced significant flash flood events across northern Pa and southern NY  These events can be identified in standardized anomaly fields (pwat and vwind)  Flooding events may be characterized by broad ascent associated with coupled cold front / warm front circulations.  The ascent associated with flooding events may be broader than in more “typical” narrow cold frontal rain bands.