700 mb heights and deformation
Notes:
At 700 mb, a north-south elongated low center consolidated over eastern Virginia late on the 15th, then deepened rapidly along the New Jersey coast. Intense deformation developed on the east side of low over eastern Pennsylvania during the afternoon on the 15th, then rotated northwestward across eastern and central New York during the early morning on the 16th. The deformation eventually weakened and became disorganized during the afternoon on the 16th.
Slide 9