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U.S. Sea Level Pressure
Sea level pressure and temperature maps show the cyclone developing along the Gulf coast on
December 24 and moving up the Eastern Seaboard. It produced heavy snow
northwest of the track of the low pressure center.
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U.S. 300 mb heights
300 mb heights and wind speeds from 00Z December 23 through 12Z December 26 show a trough migrate
across the southern U.S. with a jetstream embedded within it. Divergence assocaited with both the
trought and jetstreak was maximized at 00Z December 25, causing the surface low to develop and intensify.
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U.S. IR satellite
IR satellite imagery from 06Z December 24 through 06Z December 26 shows the development of a
classic comma cloud assocaited with a strong Gulf Coast cyclone that produced heavy snowfall
totals throughout the Midwest.
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U.S. National radar
National radar imagery from 12 a.m. December 24 through 12 a.m. December 26 shows the regions of
heaviest precipitation associated with the Gulf Coast cyclone.
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U.S. 500 mb heights
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