Blistering Heat Wave Across Southern Plains and Lower Mississippi Valley This Weekend; Wet Weather In The East

A scorching Heat Wave will continue across the southern tier of the country. Temperatures and Heat Indices will reach or easily surpass triple digits, as a ridge of high pressure dominates. Widespread Excessive Heat Warnings and Advisories are in effect, will persist and spread into the Southwest/CA next week. Meanwhile, locally heavy rain will be possible for the OH Valley/Mid-Atl/Northeast.
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Last Update: 645 AM EDT Sat Jul 21 2018

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Philadelphia, PA Local Forecast Office

33NM NE Atlantic City NJ

Marine Zone Forecast


...GALE WARNING IN EFFECT FROM 2 PM EDT THIS AFTERNOON THROUGH LATE TONIGHT...
Synopsis: Low pressure located along the North Carolina coast early this morning will move northward. The low is forecast to pass through our region tonight. Meanwhile, another area of low pressure located over lower Lake Michigan will move slowly to the south. The low is expected to reach the southeastern states on Sunday night and it should remain there during the first half of the new week. High pressure located over the western North Atlantic is anticipated to gain some influence over our weather during the middle of the week. A cold front may arrive from the northwest on Friday.

Today
E winds 10 to 15 kt with gusts up to 20 kt, increasing to 25 to 30 kt with gusts up to 40 kt. Seas 4 to 7 ft. Swell mainly from the SE with a dominant period of 7 seconds. a chance of showers this morning, then showers with a slight chance of tstms this afternoon. Vsby 1 to 3 nm late.
Tonight
E winds 25 to 30 kt, becoming S after midnight. Gusts up to 40 kt. Seas 6 to 9 ft, building to 8 to 11 ft early in the evening, then subsiding to 7 to 9 ft late. Swell mainly from the SE with a dominant period of 8 seconds. Showers with a chance of tstms until early morning, then showers likely late. Vsby 1 to 3 nm early in the evening.
Sun
S winds 20 to 25 kt with gusts up to 35 kt, diminishing to 10 to 15 kt with gusts up to 25 kt in the late morning and afternoon. Seas 5 to 8 ft, subsiding to 4 to 6 ft early in the afternoon. Swell mainly from the SE with a dominant period of 9 seconds. a chance of showers and tstms.
Sun Night
S winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 6 ft. Swell mainly from the SE with a dominant period of 8 seconds. showers likely with a chance of tstms.
Mon
S winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Showers likely with a chance of tstms.
Mon Night
S winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. A chance of showers and tstms.
Tue
S winds 10 to 15 kt. Seas 3 to 5 ft. A chance of showers and tstms.
Tue Night
S winds 10 to 15 kt. Seas 3 to 5 ft. A chance of showers and tstms.
Wed
S winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers and tstms.
Wed Night
S winds 10 to 15 kt. Seas 3 to 5 ft. A chance of showers and tstms. winds and seas higher in and near tstms.
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Last Update: 645 AM EDT Sat Jul 21 2018
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