Claudette Moves Offshore; Eastern Severe Storms and Heavy Rain

Beach hazards will persist along the coastal Carolinas as Claudette moves away from land. A cold front extending from the Plains to the Northeast and Mid-Atlantic will bring threats of severe storms and heavy rain. Dry thunderstorms, some severe, may initiate fire starts in California and the interior Northwest. Heat and elevated-to-critical fire weather threats persist for much of the West.
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Last Update: 458 PM EDT Mon Jun 21 2021

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Philadelphia, PA Local Forecast Office

31NM SSE New York NY

Marine Zone Forecast

...SEVERE THUNDERSTORM WATCH 304 IN EFFECT UNTIL MIDNIGHT EDT

Synopsis: High pressure will weaken across the area tonight while low pressure moves across the Great Lakes and southern Canada. A cold front attached to the low will pass across the region Tuesday. This will be followed by quiet weather as high pressure builds across the Mid-Atlantic through the remainder of the work week. An area of low pressure will cross the Great Lakes and drag a cold front closer to our forecast area into the weekend.

Tonight
S winds 15 to 20 kt, becoming SW 5 to 10 kt. Seas 3 to 4 ft. A chance of tstms this evening, then a slight chance of tstms after midnight. A chance of showers after midnight. Swell mainly from the S with a dominant period of 8 seconds.
Tue
NW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. A chance of showers in the morning, then showers in the afternoon. Swell mainly from the S with a dominant period of 8 seconds.
Tue Night
NW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Showers likely early in the evening. Swell mainly from the S with a dominant period of 8 seconds.
Wed
N winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt early in the afternoon, then becoming SW late. Seas 3 to 4 ft. Swell mainly from the S with a dominant period of 7 seconds.
Wed Night
SW winds 5 to 10 kt. Seas around 3 ft.
Thu
SE winds around 5 kt, increasing to around 10 kt in the afternoon. Seas 2 ft or less, then around 3 ft in the afternoon.
Thu Night
E winds around 10 kt. Seas around 3 ft.
Fri
E winds around 10 kt. Seas around 3 ft.
Fri Night
S winds around 10 kt. Seas around 3 ft.
Sat
S winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Seas 3 to 4 ft.
Sat Night
S winds 15 to 20 kt. Seas 3 to 5 ft. winds and seas higher in and near tstms.
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Last Update: 458 PM EDT Mon Jun 21 2021
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