850 LOWS AND HEAVY SNOW OVER CENTRAL AND EASTERN U.S.

• THE MEAN CIRCULATION INCREASED SIGNIFICANTLY DURING THE 12 HR PERIOD OF HEAVY SNOW

• THE HIGHEST PROBABILITY OF HEAVY SNOW LIES APPROXIMATELY 90 NM TO THE LEFT OF THE 850 LOW TRACK

• THE -5OC ISOTHERM NEARLY BISECTS THE HEAVY SNOW

• IN THE FRONT QUADRANTS OF THE STORM LITTLE WARMING TAKES PLACE

  • STRONG VERTICAL MOTION IS TAKING PLACE.

FROM BROWNE AND YOUNKIN, 1970

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