Winter Weather Outlook

After we enjoy some more above average temperatures on Thursday and Friday, a cold front is expected to slip south of us on Saturday and become somewhat stationary.  Enough cold air is expected to move in to keep temperatures in the low 30s.

A small wave is expected to form on the stalled front and move just to our south Saturday afternoon and Saturday evening.   About 1 inch of snow is currently expected, possibly mixed with sleet.

Here are the trends– temperatures are trending a bit colder with the front just a bit more to our south.  The small wave is trending somewhat stronger, possibly meaning more than 1 inch of snow is possible.

This season, things don’t really come into focus until the 24-36 hour time frame.  With this system, we really won’t know specifics until Friday.

By the way, much of next week looks to have more unseasonably high temperatures.  We may be getting our January thaw significantly early this year.

Philly Snow Update

This morning’s NAM and GFS data is available.  The GFS has a QPF of 0.21 inches water and the NAM  0.32.   Taking the average, we’ll say that 0.25 QPF is approximately correct.  That comes to 3, maybe 4 inches of snow in PHL and immediate areas.   Areas in southeastern NJ will have considerably more and areas to the north and west significantly less.

 

Weather… and Other Things 'Up in the Air'