25th Conference on Severe Local Storms

16B.3

Measured severe convective wind gust climatology of thunderstorms for the contiguous United States, 20032009

Bryan T. Smith, NOAA/NWS/NCEP/SPC, Norman, OK; and A. C. Winters, C. M. Mead, A. R. Dean, and T. E. Castellanos

A severe convective wind gust climatology spanning 2003-2009 for the contiguous United States is developed using measured Automated Surface Observing System (ASOS) and Automated Weather Observing System (AWOS) wind observations. National Lightning Detection Network and Radar Mosaic/Level II data are used amongst other quality control checks to identify and remove erroneous observational data.

The filtered observations are then time matched with a number of diagnostic mesoanalysis fields from the Storm Prediction Center (SPC) for assessment of the severe convective wind gust environments. These data are then binned based on season and geographic region in order to identify atmospheric regimes characteristic to different parts of the country. The filtered observations are compared to storm reports archived by the SPC. Finally, a relatively denser surface observing network in Oklahoma is utilized to determine how consistently severe convective wind gusts are recorded by differing networks (i.e. ASOS/AWOS and Oklahoma Mesonet).

extended abstract  Extended Abstract (1.6M)

wrf recordingRecorded presentation

Session 16B, Severe Weather Climatology III
Thursday, 14 October 2010, 4:30 PM-6:30 PM, Grand Mesa Ballroom D

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