Heavy rain, mountain snow and strong winds in the western U.S. this week

The western U.S. will experience active weather yet again this week as significant Pacific moisture brings rain and mountain snow to the region. This heavy rain will bring flood concerns to parts of WA, OR and CA. Very heavy snow is possible in the Sierra, Cascades, Great Basin and parts of the northern Rockies.
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Last Update: 633 AM EST WED JAN 18 2017

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Philadelphia, PA Local Forecast Office

26NM S New York NY

Marine Zone Forecast


Synopsis: LOW PRESSURE SOUTH OF LONG ISLAND WILL INTENSIFY AS IT MOVES EASTWARD TODAY. HIGH PRESSURE WILL BUILD IN BEHIND THIS DEPARTING LOW FOR TONIGHT AND THURSDAY. WEAK LOW PRESSURE WILL PASS THROUGH THE REGION ON FRIDAY WITH A MUCH LARGER LOW IMPACTING THE AREA EARLY NEXT WEEK.

Today
NW winds 5 to 10 kt...becoming N 10 to 15 kt with gusts up to 20 kt late this morning and afternoon. Seas 2 to 3 ft. Mainly in S swell with a dominant period of 5 seconds. patchy fog early this morning. A chance of showers early this morning... Then a slight chance of showers late this morning and early afternoon. Vsby 1 to 3 nm early this morning.
Tonight
N winds 10 to 15 kt. Seas 2 to 4 ft. Mainly in E swell with a dominant period of 8 seconds.
Thu
NW winds 5 to 10 kt. Seas 3 to 5 ft. Mainly in E swell with a dominant period of 8 seconds.
Thu Night
N winds 5 to 10 kt. Seas 3 to 4 ft. Mainly in E swell with a dominant period of 10 seconds.
Fri
NE winds around 5 kt...becoming E in the afternoon. Seas 3 to 4 ft. A chance of rain in the afternoon.
Fri Night
E winds around 5 kt. Seas 3 to 4 ft. A chance of rain in the evening.
Sat
Light and variable winds...becoming NW around 5 kt in the afternoon. Seas 2 to 4 ft.
Sat Night
N winds around 5 kt. Seas 3 to 4 ft.
Sun
NE winds 10 to 15 kt. Seas 3 to 4 ft. A chance of rain.
Sun Night
E winds 15 to 20 kt...increasing to 20 to 25 kt after midnight. Seas 4 to 7 ft. A chance of rain.
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ABOUT THIS FORECAST

Last Update: 633 AM EST WED JAN 18 2017
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