| The hybrid high wind event of March 7, 2004 in the Piedmont of the western Carolinas - :6647 | National Weather Service (NWS)
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The hybrid high wind event of March 7, 2004 in the Piedmont of the western Carolinas
  • Published Date:
    2007
Filetype[PDF-2.96 MB]


Details:
  • Personal Authors:
  • Corporate Authors:
    United States, National Weather Service,
  • Description:
    "Widespread, damaging winds struck the Piedmont of the western Carolinas on 7 March 2004 as a cold front passed through the region. The intensity of the event was largely unanticipated by forecasters and the numerical guidance. Wind damage due to a tight pressure gradient following the passage of a cold front is typically confined to the higher elevations of the southern Appalachians. However, such wind damage has also occasionally extended into the adjacent Piedmont . Although weak thunderstorms were present around the time of the cold frontal passage on 7 March 2004, they appeared to be largely unrelated to the damaging winds. These rare, but substantial, Piedmont high wind events are herein referred to as 'hybrid' events since they appear to be largely due to gradient winds, but with a convective component. Observed and model data were used to examine the processes that may have played a role in the development of the damaging winds. Similar Piedmont high wind cases from 28 March 2000 and 4 February 2002 were also examined and compared in an effort to formulate guidance for forecasting such events in the future"--Abstract.

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