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Last Post 57 days, 7 hours Ago


Phillyweather.net First Call for December 2-3 Storm
Nov 30, 2007 | 3:22 PM
Category: Weather
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A tricky forecast and a tricky drive forthcoming for some in the Delaware Valley as a mixture of snow, sleet, freezing rain, and rain will be moving in from the west starting early Sunday morning. If you haven't already, check out the discussion from last night discussing the synoptic setup and where the lows are tracking.

There will be two main waves of precipitation with a lull in between the two. The first, caused by overrunning moisture on top of a warm frontal boundary, will lead to a period of wintry precipitation for the Delaware Valley starting early Sunday and continuing through at least midday. Precipitation should start in the form of snow and then mix with sleet. In Philadelphia, a changeover to rain should occur early in the afternoon hours as warmer air aloft mixes down to the surface.

Here is my first call for accumulations for Sunday and Sunday night in the Delaware Valley.  These are subject to change and may based on data as we close in on the event.
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