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Freeze update

Freeze "warning" in Pennsylvania; frost advisory for South Jersey.

The National Weather Service has upgraded it freeze alerts to a "freeze warning" for all Pennsylvania counties, except Philadelphia, and a "frost advisory" for South and central Jersey.

Philly didn't quite make the warning or advisory grade because the urban heat-island effect should keep temperatures from dropping below freezing. New York City also is off the lists.

Winds are due to die down overnight, and that will allow significant radiational cooling. The warning and is in effect from 2 to 8 a.m., and the frost advisory from 4 to 8 a.m.

In the early evening, however, the breezes will be stiff from the northwest, which means that once again Roy Halladay will be getting an assist from nature -- not that he needs it.

Winds will be blowing in from left-center at the start of the game at 13 m.p.h., and should stay brisk until at least 9 p.m.

Temperatures are going to be falling into the 40s.