Heavy Lake Effect Snow and Bitterly Cold Temperatures

A bitterly cold airmass will settle over much of the central and eastern U.S over the next several days. Well below normal temperatures and cold wind chills will be common. In addition, heavy lake effect snow will be possible especially downwind of Lakes Erie and Ontario, where up to one foot of additional snow is forecast by Sunday morning.
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Last Update: 942 AM EST SAT FEB 13 2016

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Philadelphia, PA Local Forecast Office

26NM S New York NY

Marine Zone Forecast


...GALE WARNING IN EFFECT THROUGH SUNDAY MORNING...
...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM LATE TONIGHT THROUGH SUNDAY MORNING...
Synopsis: ARCTIC HIGH PRESSURE WILL BUILD ACROSS OUR REGION DURING THE WEEKEND. THE CENTER OF THE HIGH IS FORECAST TO PASS OFF THE COAST ON SUNDAY NIGHT. LOW PRESSURE IS EXPECTED TO DEVELOP OVER THE LOWER MISSISSIPPI AND TENNESSEE RIVER VALLEYS ON MONDAY. THE LOW IS ANTICIPATED TO PROGRESS NORTHEASTWARD ALONG THE APPALACHIANS AND IT SHOULD PASS ACROSS MARYLAND AND PENNSYLVANIA AROUND TUESDAY MORNING BEFORE MOVING UP INTO QUEBEC ON TUESDAY NIGHT. A COLD FRONT FROM THE NORTHWEST IS FORECAST TO ARRIVE ON WEDNESDAY, FOLLOWED BY HIGH PRESSURE FOR THURSDAY AND FRIDAY.

Today
W winds 15 to 20 kt with gusts up to 30 kt early...becoming NW 30 to 35 kt with gusts up to 45 kt. Seas 2 to 3 ft dominant period 5 seconds...building to 4 to 7 ft dominant period 5 seconds. Freezing spray. A slight chance of snow showers early. Scattered snow showers until late afternoon...then isolated snow showers late. Vsby 1 to 3 nm early.
Tonight
NW winds 30 to 35 kt...diminishing to 25 to 30 kt in the late evening and overnight. Seas 5 to 8 ft dominant period 5 seconds. Isolated snow showers. Heavy freezing spray.
Sun
NW winds 25 to 30 kt with gusts up to 40 kt...diminishing to 15 to 20 kt with gusts up to 30 kt. Seas 4 to 7 ft...subsiding to 3 to 5 ft in the late morning and afternoon. Mainly in NW swell with a dominant period of 5 seconds. Freezing spray.
Sun Night
NW winds 10 to 15 kt with gusts up to 20 kt... Becoming W 5 to 10 kt in the late evening and early morning... Then becoming SW late. Seas 2 to 3 ft. Mainly in NW swell with a dominant period of 4 seconds. Light freezing spray early in the evening...then a chance of light freezing spray late in the evening.
Mon
S winds 5 to 10 kt...increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. A chance of snow and sleet in the morning...then rain likely in the afternoon.
Mon Night
S winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft...building to 4 to 7 ft after midnight. Rain. Vsby 1 to 3 nm.
Tue
S winds 20 to 25 kt. Seas 8 to 11 ft. Rain. Vsby 1 to 3 nm in the morning.
Tue Night
SW winds 15 to 20 kt. Seas 8 to 11 ft. A chance of showers.
Wed
W winds 10 to 15 kt...increasing to 15 to 20 kt in the afternoon. Seas 6 to 9 ft.
Wed Night
NW winds 15 to 20 kt. Seas 4 to 6 ft.
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Last Update: 942 AM EST SAT FEB 13 2016
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