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02/11/2012

A Bit Wet & Slippery for NYC, Windy Bitter Cold Moves in Tonight!!

Sunday will only feel like 10 degrees! After this mild winter, that's cold!

Good morning.

Moisture, well in advance of an arctic front that is now stretching from the St. Lawrence

Valley to Lake Erie then southward across the Tennessee Valley, and to the north of an upper level

disturbance that is starting to develop low pressure near the coast of North Carolina is resulting in

steady, but mostly light snow, across the area right now. This steadier precipitation will be ending by

10-11 am, across most of the area, then we will have little, if any, in the way of precipitation (and none

of consequence) the rest of today and this evening. This will be because the upward motion and energy

will be concentrating itself near the strengthening low off that coast that will track northeastward to

near the northern tip of Nova Scotia around midnight tonight. The upper level energy supporting the

arctic cold front that will be sweeping across our area late this afternoon and the first part of tonight

could bring a few flurries. Winds will also be pretty tame most of today with the low still not too well

developed yet and tracking so far away from the coast. However, we will have an abrupt change to

colder and windy weather beginning this evening as the arctic front moves through.The arctic front will

push through around 9 PM in NYC. For us the biggest thing will be the wind cranking up and

temperatures tumbling overnight. Tomorrow will be a windy day and the coldest day of the forecast

period with AccuWeather Realfeel temperatures no higher than the teens. Additionally, there will be an

upper level disturbance moving across the area in the northwest flow that may heave enough moisture

to produce a few flurries across our area….no accumulation though. Those winds will be routinely

gusting to 35 mph, and there can be a few peak gusts approaching 45 mph. High pressure helping to

deliver the cold air tonight through Sunday night will slide eastward from Nebraska today, to the central

Appalachians by Monday morning. With that high moving closer, we expect plenty of sunshine and much

less wind. So even though we will be off to a cold start Monday morning, it will not feel as bad with

temperatures making some recovery. A trough coming onto the West Coast right now will slide eastward

the next couple of days as the surface high that promotes dry weather and sunshine Monday moves

eastward off the Southeast Coast. Moisture coming back up and around the surface high and this upper

level trough will combine to bring plenty of clouds and a chance for light, spotty snow and rain Tuesday.

This will be a weakening upper level trough with hardly any semblance of a surface low so the places

that do pick up a few hours of intermittent rain and snow will have light amounts (less than 0.10 of an

inch liquid and with the southerly flow around the the high continuing temperatures will be above

freezing so no snow of impact. This trough will push eastward by Wednesday morning and weak high

pressure at the surface will approach from the west. The air will actually milder at the surface behind this

upper level trough, and there may be some moisture that is left between this exiting trough and the

weak surface high approaching from the west. Not sure how the scales are going to tip in the way of

clouds vs. sunshine at this point on Wednesday, but the chance for some sunshine to return in the

afternoon is there, This high will move eastward across our area and promote dry, mild weather Thursday

with more sunshine than clouds, though clouds will start to increase later Thursday afternoon.

Have a great weekend and stay warm!

Posted by WABC on February 11, 2012 in Bill Evans' Weather Chat , Books , Current Affairs , Film , Food and Drink , Games , Science , Television , Travel , Web/Tech , Weblogs | Permalink

Comments

David

Dear Bill, How close is this weather for Sunday? I work for a Highway Dept and like to go to West Virginia This weekend to help a family member tear down a barn. Can't go if snow is coming. Are we getting snow. Washingtonville ny orange County Ny

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