Heavy rain from the central Gulf Coast to Southeast U.S. this weekend

Heavy rain is expected from eastern Texas across the Lower Miss. Valley to the Southeast U.S. this weekend. This rain could lead to flash flooding. Meanwhile, heavy rain will also spread into the Northwest U.S., with heavy snow in the higher elevations of the Cascades and northern Rockies.
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Last Update: 409 AM EST SUN DEC 4 2016

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Philadelphia, PA Local Forecast Office

10NM SE Lewes DE

Marine Zone Forecast


Synopsis: HIGH PRESSURE OVER THE REGION TODAY WILL PROGRESS OFFSHORE TONIGHT. A WEAK DISTURBANCE WILL PASS THROUGH THE AREA TONIGHT INTO EARLY MONDAY. HIGH PRESSURE BUILDS BACK INTO THE MID-ATLANTIC STATES MONDAY AFTERNOON AND NIGHT. AN AREA OF LOW PRESSURE OVER THE GULF OF MEXICO TRACKS NORTHEASTWARD AND TOWARD THE REGION TUESDAY. THIS LOW IS FORECAST TO PASS TO OUR SOUTH TUESDAY AFTERNOON AND EVENING AND THEN MOVE OFF THE MID-ATLANTIC COAST LATE TUESDAY NIGHT AND WEDNESDAY. A STRONG COLD FRONT LIKELY MOVES THROUGH OUR AREA THURSDAY AS ANOTHER AREA OF LOW PRESSURE TRACKS ACOSS THE NORTHEAST STATES. THIS LOW WILL STRENGTHEN OVER THE CANADIAN MARITIMES FRIDAY AND SATURDAY WHILE HIGH PRESSURE BUILDS IN FROM THE CENTRAL U.S.

Today
N winds 10 to 15 kt with gusts up to 20 kt... Becoming NW 5 to 10 kt late. Seas 2 to 3 ft. Mainly in NE swell with a dominant period of 6 seconds.
Tonight
W winds around 5 kt...becoming S in the late evening and overnight. Seas 2 to 3 ft. Mainly in NE swell with a dominant period of 6 seconds in the evening... Becoming light. A chance of rain in the late evening and early morning. Rain likely late.
Mon
S winds 5 to 10 kt...becoming W in the late morning and early afternoon...then becoming NW late. Seas 1 foot or less... Then around 2 ft in the late morning and afternoon. rain likely early in the morning...then a chance of rain late in the morning.
Mon Night
NE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Mainly in NE swell with a dominant period of 7 seconds. a chance of rain late.
Tue
E winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft...building to 4 to 6 ft in the afternoon. Rain...mainly in the afternoon with vsby 1 to 3 nm.
Tue Night
E winds 20 to 25 kt...diminishing to 15 to 20 kt after midnight. Seas 4 to 6 ft. Rain. Vsby 1 to 3 nm in the evening.
Wed
NE winds 10 to 15 kt...becoming N in the afternoon. Seas 4 to 6 ft. A chance of rain.
Wed Night
NW winds around 10 kt. Seas 4 to 6 ft.
Thu
W winds 10 to 15 kt. Seas 3 to 5 ft. A chance of showers.
Thu Night
W winds 15 to 20 kt...increasing to 20 to 25 kt after midnight. Seas 4 to 6 ft. A chance of showers in the evening...then a chance of snow showers after midnight.
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ABOUT THIS FORECAST

Last Update: 409 AM EST SUN DEC 4 2016
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