Category Archives: Philadelphia Weather Outlook

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 Winter Weather Update

The GFS has been quite inconsistent with the  development of low pressure in the Sunday through Monday timeframe.

The latest trend is for low pressure to develop and move over the Great Lakes, keeping us in the warm sector.  So while some light snow or mixed precipitation is possible at the start Sunday afternoon into evening,  a changeover to all rain on Monday is likely.  Little or no accumulation expected at this time.

Still unclear whether a secondary low will form off the coast on Monday with a change back to some snow towards the end of the day.

After a brief relative warmup with wet weather on Monday, another outbreak of cold air expected  next week.  The pattern remains cold and active.