Critical Fire Weather Over The Southwest U.S., Heavy Rain And Flash Flooding Likely In Hawaii

The combination of strong winds and very dry humidity will lead to critical to extremely critical fire weather conditions over portions of the southern Plains and Desert Southwest through Friday. The potential exists for explosive wildfire growth given ignition. Heavy rain and flash flooding can be expected over the Hawaiian Islands where Flash Flood Watches remain in effect into Friday.
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Last Update: 641 PM EDT Thu Apr 19 2018

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Philadelphia, PA Local Forecast Office

20NM SSW Atlantic City NJ

Marine Zone Forecast

...GALE WARNING IN EFFECT THROUGH FRIDAY MORNING...

Synopsis: Low pressure will move further offshore and into the Canadian Maritimes tonight. High pressure will build in from the west through Friday and remain in the area through the weekend before sliding offshore on Monday. Low pressure developing over the southeastern United States will move up the Mid Atlantic coast, affecting our area through the mid week period.

Tonight
NW winds 15 to 20 kt, increasing to 20 to 25 kt late this evening, then diminishing to 15 to 20 kt after midnight. Gusts up to 35 kt. Seas 3 to 5 ft. Swell mainly from the W with a dominant period of 7 seconds. Isolated showers early this evening.
Fri
NW winds 15 to 20 kt with gusts up to 35 kt, diminishing to 10 to 15 kt with gusts up to 25 kt late. Seas 3 to 5 ft. Swell mainly from the NW with a dominant period of 6 seconds.
Fri Night
N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 ft or less, then around 3 ft after midnight. Swell mainly from the NW with a dominant period of 7 seconds.
Sat
N winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt in the late morning and afternoon. Seas 2 ft or less. Swell mainly from the NE with a dominant period of 6 seconds.
Sat Night
W winds 5 to 10 kt, becoming N after midnight. Seas 2 ft or less.
Sun
N winds 5 to 10 kt, becoming E in the afternoon. Seas 2 ft or less.
Sun Night
S winds 5 to 10 kt, becoming SW after midnight. Seas 2 ft or less.
Mon
N winds around 5 kt, becoming E in the afternoon. Seas 2 ft or less.
Mon Night
SE winds 5 to 10 kt. Seas 2 ft or less, then around 3 ft after midnight.
Tue
E winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 3 to 5 ft.
Tue Night
E winds 10 to 15 kt. Seas 4 to 6 ft, building to 6 to 7 ft after midnight. A chance of showers after midnight.
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Last Update: 641 PM EDT Thu Apr 19 2018
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