What a great back door cold front today. It's lined up right across the New York metro area, extending north up to around Albany and then just east of the I-87 Northway up to around Montreal. At La Guardia Airport, the temperature is 71 with an east wind. At Newark Airport, it's 88 with a south wind.

New England and New York are prone to back door cold fronts this time of the year because the water is still so cold. If any bubble of high pressure develops over Nova Scotia, it "wants" to expand southwest into New England. Sometimes these cold fronts penetrate all the way down to the NYC area; more often, just areas east of the Connecticut River, especially Boston down through Cape Cod, are affected.

These fronts are called back door cold fronts because weather fronts usually move from west to east in this area. When a cold front comes in from the east or northeast, it's the "wrong" direction, so the term used is "back door."

Temperatures this afternoon will range from 90-95 along and west of the Garden State Parkway in northeastern New Jersey, but hold in the 70s across Long Island and Connecticut.

Back door cold fronts are really cool.