Severe Storms Shift into the Lower Mississippi Valley and Lower Ohio Valley Monday

The focus for severe storms will shift to the Lower Mississippi Valley and portions of the Tennessee Valley and Ohio Valley Monday. Damaging winds, hail and an isolated tornado or two will all be possible. Elsewhere, a wintry mix will impact portions of New England while heavy rain and high elevation snow continue in the northwest U.S.
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Last Update: 650 AM EDT MON MAR 27 2017

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Philadelphia, PA Local Forecast Office

6NM WNW Fenwick Island Buoy DE

Marine Zone Forecast


...DENSE FOG ADVISORY IN EFFECT UNTIL NOON EDT TODAY...
Synopsis: NORTHEASTWARD MOVING LOW PRESSURE FROM THE UPPER GREAT LAKES TO MISSOURI WILL PULL A WARM FRONT NORTHWARD THROUGH THE DELMARVA AND SOUTHERN NEW JERSEY TODAY. THE WARM FRONT SHOULD STALL ACROSS SOUTHEASTERN PENNSYLVANIA AND CENTRAL NEW JERSEY, AWAITING THE PASSAGE OF THE MISSOURI LOW, THROUGH NEW JERSEY, TUESDAY EVENING. THEREAFTER, CANADIAN HIGH PRESSURE WILL BUILD INTO OUR AREA WEDNESDAY AND THURSDAY. LOW PRESSURE IN THE OHIO VALLEY ON FRIDAY WILL MOVE EAST AND OFF THE MID ATLANTIC COAST ON SATURDAY.

Today
S winds 10 to 15 kt with gusts up to 20 kt. Seas around 4 ft. Mainly in E swell with a dominant period of 6 seconds. areas of dense fog this morning. A slight chance of showers. Vsby 1 nm or less this morning.
Tonight
S winds 10 to 15 kt. Seas 3 to 5 ft. Mainly in S swell with a dominant period of 5 seconds. a chance of showers. Patchy fog. Vsby 1 nm or less.
Tue
S winds 10 to 15 kt. Seas 3 to 4 ft. Mainly in S swell with a dominant period of 6 seconds. patchy fog until late afternoon. A chance of showers in the morning...then a chance of showers and tstms in the afternoon. Vsby 1 nm or less until late afternoon.
Tue Night
SW winds 5 to 10 kt...becoming NW 10 to 15 kt with gusts up to 20 kt late. Seas 3 to 4 ft. Mainly in SE swell with a dominant period of 10 seconds. a chance of tstms early in the evening. A chance of showers until early morning.
Wed
N winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 4 ft.
Wed Night
N winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft.
Thu
NE winds 10 to 15 kt...becoming E 5 to 10 kt in the afternoon. Seas 3 to 5 ft.
Thu Night
SE winds 5 to 10 kt. Seas 2 to 4 ft.
Fri
SE winds 5 to 10 kt...increasing to 15 to 20 kt in the afternoon. Seas 3 to 5 ft. Rain likely.
Fri Night
SE winds 15 to 20 kt...becoming S 10 to 15 kt after midnight. Seas 4 to 7 ft. Rain. winds and seas higher in and near tstms.

WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
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ABOUT THIS FORECAST

Last Update: 650 AM EDT MON MAR 27 2017
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