One of our forecasters (Pete Banacos) put this chart together early this 
Notice the 20 degree drop at Massena between 9 pm and 10 pm.

                 * Arctic Front Passage across Northern NY and Vermont 
on 1/13 to 1/14/09*


Scott L. Whittier
Warning Coordination Meteorologist   DOC/NOAA/National Weather Service
[log in to unmask]              Burlington Intl Airport
802-862-2475 x4926 / 802-922-9137    1200 Airport Drive                  S. Burlington VT 05403-6028
The contents of this message are mine personally and do not
necessarily reflect any position of the Government or the National
Oceanic and Atmospheric Administration.