Discussion: 12/10/08
Wednesday PM
Most areas experienced a warm day and scattered showers today, but big changes are on the way starting tonight. A slow moving Cold Front will move through the region tonight as colder air begins to filter in and temps drop to the low and middle 40's. Tomorrow the frontal system will slow down and become stationary just to our east, but the colder air will continue to filter in as temps remain between 40 and 45 with some heavier rains moving in during the late morning and afternoon hours.
An area of weak low pressure will move from the Gulf of Mexico along this frontal boundary tomorrow into Friday. The track of this storm will be too far west as it moves from Georgia to Central NC, then to NJ by later Thursday night. This track will prevent the colder air to charge in and prevent any problems for accumulating snow across the region.
Plenty of moderate to heavy rain is likely later Thursday into Thursday night, with 1.50" to perhaps 2.50" of total rainfall, with very raw and chilly temps in the middle 30's can be expected. There's a chance for a period of sleet and wet snow later Thursday night into Friday AM before our storm exits NE into New England.
An Upper level low will follow the surface low and could support this changeover and prolong the precip into Friday Morning. Some areas North and West of PHL could see a coating to perhaps 1".
For PHL, Northern DE, and parts of Interior Southern NJ/Central NJ, a brief period of Sleet and wet snow is possible Early Friday AM, with no accumulations, other than a light coating in a few spots.
On Friday the system moves out with breezy and continued cold conditions. Highs will be in the Upper 30's to low 40's with Cloudy skies giving away to some sunshine during the afternoon hours.
The weekend looks to be dry and Chilly with P.Cloudy skies. Highs mainly in the 30's on Saturday and in the low to mid 40's on Sunday. Lows will be in the 20's.
Ruggie
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