12-13 January 1998 -- GOES-8 6.7 Micrometer IR ("Water Vapor")
Arctic Cold Front Moves South Across Texas Panhandle Region

(- Animation -)

Surface wind barbs show that the flow becomes northeasterly behind the cold front. The thin dark (warm/dry) band that moves south-southwestward along with the surface cold front is a mid-tropospheric "gravity wave" which follows the motion of the relatively shallow Arctic cold front at the surface.

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