Sabtu, 05 Februari 2011

Slip & Slide Start To Saturday


 A sloppy and slippery start around town as light rain falls around the region into a near or subfreezing airmass.   As a result, some slick spots around town and more to the north as rain is freezing on local driveways and non-major roads this morning.  While not on the magnitude of this past Wednesday morning, a little bit of ice can go a long way to foul up the drive so take it easy out there on way out for any errands...or better yet, wait until after 10-11 AM or so in Southeastern Pennsylvania for temperatures to nudge above freezing a bit more and for conditions to improve thanks to the sun working its magic through the cloud cover.   The Lehigh Valley may have to wait a little bit longer for conditions to improve but by and large the region should get above freezing today at some point.   Snowfall has been less robust than projected to our north as the atmosphere warmed aloft a bit more quickly -- light snow is reported in the highest of hills in the Poconos but at some point freezing rain will mix in with the snow, if not transition to an icy rain completely up to our north.

Regional radar shows that the city and Southeastern Pennsylvania may not get the heaviest precipitation from this event.   Radar has been suggesting that the heavier precipitation over Virginia should miss the city to the south, perhaps grazing Southern Delaware and Cape May over the next several hours.   Higher resolution radar modeling suggests an off and on type of light, chilly rain around the region today as precipitation fills in back to our west and southwest, lifting through the region at various points throughout the day.   Late this afternoon and evening, the upper level energy that should help intensify this sloppy system will pull towards us and help transition some of the rain to snow in Central and Northern Pennsylvania, especially after sunset.    It doesn't look like much in the way of snow will fall up north and far to our west -- perhaps an inch, maybe two in the Poconos at best as most of the dynamics and lift to support heavier snow are going through Syracuse and Central New York, not Scranton.

Total precipitation is generally expected to be in the quarter inch range, with some heavier totals to the north of the city and also down in Southern Delaware assuming the batch in Virginia lifts through.

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