Wednesday, January 5, 2011

Light Snow Event Likely For Friday ! Cold Weather Continues For Extended Period !

Wednesday PM
Jan 5, 2011
Discussion and Forecast for:
PHL/NYC Areas.

It looks like another snow event is headed our way, for later Thursday Night into Friday afternoon. This system will bring a minor to moderate snow event to much of the Delaware Valley Region, including the NYC Region.

An Alberta Clipper system will move Southeast out of Central Canada tonight, and then move into the G/L's and Upper Midwest on Thursday. This will spread some light snow into these regions, along with another re-enforcing shot of colder air to follow. This storm will move into PA during Thursday night, and exit off the NJ coast during Friday.

Light snow will spread into the Delaware Valley later Thursday night and continue into much of Friday. As the storm reaches the coast on Friday and some upper level energy approaches from the west, this surface low will gather some extra strength. As this occurs, I do expect some enhancement of the snow during Friday, in which a period of moderate snow is possible.
The best chance for this period of moderate snow too occur over the Delaware Valley, will be between 8:00 AM and 12:00 PM on Friday. Light snow and flurries can be expected during the afternoon hours, which will then taper off to a few flurries during the early evening hours. Temperatures will be in the mid to upper 20's Thursday night and only recover to the lower 30's during Friday.

My first call estimates are as follows for The PHL and NYC Regions. I'll make any adjustments, if needed on Thursday.

For PHL and The Delaware Valley Region:

For PHL, Extreme SE PA and much of Southern/Central NJ.
A general 1"-3" can be expected.

Over the far Northern and Western Suburbs of PHL and The Lehigh Valley:
A general 2"-4" can be expected.

For DE, including SE Coastal NJ:
Only a Coating to 1" can be expected.
A few spots in Northern DE could possibly see 1"-2" there.

For The NYC Region:

For much of NE NJ, NYC, and much of Long Island NY.
A general 3"-6" can be expected.

For The Pocono's / NE PA / and NW NJ:
A general 4"-8" can be expected.

Behind this system colder air moves in for the weekend, with breezy conditions for Friday night and Saturday. A few flurries are possible on Saturday, with Partly to Mostly Cloudy skies, and highs in the low 30's.

Fair and very cold for Saturday night with diminishing winds. Lows will be in the Upper teens to lower 20's. Sunday we can expect Partly Sunny and continued cold, with Highs in the low to mid 30's.

As we head into next week another storm, this time coming out of the GOM and TN Valley Regions, could bring a more significant snow event on Tuesday. I'll have more on this over the weekend !

Take Care,

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