Things are changing by the hour and the real snow show starts after 7pm tonight for most areas south of Allentown and into Delaware and South Jersey.  The energy from the west will add some energy to the already deepening LOW so expect things to get a bit more interesting after 7-8pm tonight.

The radar will begin to fill in the next few hours you can see it already over SE PA.  Watch the wedge of snow and cold that extends into MD and DE. That area may grow by 7pm tonight.

The National Weather Service has downgraded the Winter Storm Warning to a winter weather advisory for the N & W sections of Philly but it remains for areas north.

We are also seeing the advisories dropped in the Lower Susquehanna Valley so we'll see how this snow band develops the next few hours...that will tell the tale of this storm.