Sunday, February 25, 2007

Classic backside Snow

Snow wrapped around the Low Pressure Center. Moisture streaming from the Gulf winding around the Low pressure. Winds on the surface in the Dakota have switched to the North but the winds aloft are still from the East. The warmer air dropping frozen precipitation through the cold air to the surface.

<<< Blizzard >>>

The surface pressure pattern and the 500mb (18000') contours (blue) are conincident. That is a Cold Core system.

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