Passage of cold front: Local Maps

Local maps for 18Z (2PM) and 0Z (8PM) show the eastward passage of the occluded front over Vermont. It transforms into a cold front during this period. The winds shifts from southerly ahead of the front to westerly behind the front.

The second cold front approaching the U.S. from Canada weakens during this period. The dashed cold front symbol means that the front is dissipating. Winds behind this front are strong, ranging from 10 to 20 knots. As temperatures are also considerably colder in this region (in the 10's and 20's) than over New England (40's), we can expect cold advection by the westerly winds to cause temperatures to fall at least to these levels.