A Storm Expected To Impact The Central U.S.

A storm system will emerge from the Rockies and impact the Central U.S. through midweek. A swath of heavy snow is expected from the Central Rockies to the Upper Mississippi Valley and Great Lakes. Locally heavy rain with a marginal chance for excessive rainfall will be possible from the Lower Mississippi Valley to the South. The system will then shift into the East to produce a number of hazards.
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Last Update: 930 AM EST Tue Jan 22 2019

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Philadelphia, PA Local Forecast Office

5NM ENE Atlantic City NJ

Marine Zone Forecast


Synopsis: Arctic high pressure across the Mid-Atlantic region will move offshore by tonight. Low pressure will move into the Great Lakes region Wednesday and then down the Saint Lawrence Valley Thursday. Its associated fronts will cross the area tonight and Thursday. High pressure will return for Friday and Saturday. A cold front will cross the area Sunday. Next week, a coastal system may affect the area later Monday and Tuesday.

Rest Of Today
NW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 10 kt early this afternoon, then becoming W late. seas 3 to 4 ft late this morning and early afternoon, then 2 ft or less. Swell mainly from the E with a dominant period of 5 seconds. Light freezing spray late this morning and early afternoon.
Tonight
S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 25 kt after midnight. Seas 2 ft or less, then 3 to 4 ft after midnight. Swell mainly from the NE with a dominant period of 5 seconds.
Wed
S winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 7 ft. Swell mainly from the SE with a dominant period of 7 seconds.
Wed Night
S winds 20 to 25 kt. Gusts up to 35 kt. Seas 5 to 8 ft. Swell mainly from the S with a dominant period of 8 seconds. rain.
Thu
SW winds 20 to 25 kt with gusts up to 35 kt, becoming W 15 to 20 kt with gusts up to 25 kt in the afternoon. Seas 6 to 9 ft. Rain.
Thu Night
NW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 7 ft. Rain in the evening.
Fri
W winds around 15 kt. Seas 4 to 6 ft.
Fri Night
NW winds 10 to 15 kt. Seas 3 to 5 ft.
Sat
NW winds 10 to 15 kt. Seas 3 to 4 ft.
Sat Night
W winds 5 to 10 kt, becoming SE after midnight. Seas 3 to 4 ft.
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ABOUT THIS FORECAST

Last Update: 930 AM EST Tue Jan 22 2019
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