Summer Heat Continues; Severe Weather For Northeast

A large ridge of high pressure continues to deliver summer heat w/ humidity in several sections of the country. Excessive heat warnings and heat advisories are in effect across the Desert Southwest, southern Plains, Lower Mississippi Valley and a small part of the Mid-Atlantic. Meanwhile, severe thunderstorms are in the forecast for the Northeast into the northern Mid-Atlantic for damaging winds.
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Hazardous Weather Conditions

Last Update: 946 PM EDT Tue Aug 20 2019

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Philadelphia, PA Local Forecast Office

20NM SSW Atlantic City NJ

Marine Zone Forecast


Synopsis: A nearby front will lift slowly northward into New York and New England tonight and on Wednesday. A slow moving cold front is forecast to approach from the northwest on Wednesday night and Thursday. The boundary is expected to pass through our region on Thursday night. High pressure is anticipated to follow for the coming weekend and for the early part of next week.

Overnight
S winds 5 to 10 kt. Seas 2 ft or less. Swell mainly from the SE with a dominant period of 10 seconds. patchy fog. A slight chance of showers and tstms.
Wed
SW winds 5 to 10 kt, becoming S 15 to 20 kt. Seas 2 ft or less, then 3 to 4 ft in the afternoon. Swell mainly from the SE with a dominant period of 10 seconds.
Wed Night
SW winds 15 to 20 kt, diminishing to 10 to 15 kt late. Seas 3 to 4 ft. Swell mainly from the S with a dominant period of 8 seconds. a chance of showers and tstms until early morning.
Thu
SW winds 10 to 15 kt. Seas 3 to 4 ft. Swell mainly from the S with a dominant period of 7 seconds. a chance of showers and tstms in the afternoon.
Thu Night
SW winds around 10 kt, becoming W after midnight. Seas 3 to 4 ft. Showers likely with a chance of tstms.
Fri
N winds 5 to 10 kt. Seas 3 to 4 ft. A chance of showers and tstms.
Fri Night
N winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas around 3 ft. A chance of tstms in the evening. A chance of showers.
Sat
NE winds 10 to 15 kt. Seas around 3 ft. A chance of showers in the morning.
Sat Night
NE winds 5 to 10 kt. Seas 2 ft or less, then around 3 ft after midnight.
Sun
NE winds 10 to 15 kt. Seas 3 to 4 ft.
Sun Night
E winds around 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. 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: 946 PM EDT Tue Aug 20 2019
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