Increasing Risk for Flash and River Flooding Through the Weekend

A storm system will track across the central U.S. and set the stage for severe thunderstorms and widespread heavy rainfall through the weekend. There will be a threat for flash and river flooding for portions of the Southern Plains into the Upper Midwest.
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Last Update: 247 PM EDT FRI APR 28 2017

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Gray/Portland, ME Local Forecast Office

20NM ENE Portsmouth NH

Marine Zone Forecast


...SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS IN EFFECT UNTIL 8 PM EDT THIS EVENING...
Synopsis: A COLD FRONT WILL CROSS THE WATERS THIS EVENING. ANOTHER COLD FRONT WILL CROSS THE WATERS SATURDAY WITH HIGH PRESSURE BUILDING IN FOR SUNDAY. LOW PRESSURE WILL LINGER NORTH OF THE WATERS EARLY NEXT WEEK.

Tonight
SW winds 5 to 10 kt. Seas 3 to 5 ft.
Sat
SW winds 5 to 10 kt...increasing to 10 to 15 kt in the afternoon. Seas 3 to 4 ft. A chance of showers in the morning.
Sat Night
NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft.
Sun
N winds 5 to 15 kt with gusts up to 20 kt... Becoming SE 5 to 10 kt in the afternoon. Seas 2 to 3 ft.
Sun Night
S winds around 10 kt. Seas around 2 ft. A chance of showers after midnight.
Mon
SE winds around 10 kt. Seas around 2 ft. A chance of showers.
Mon Night
SE winds around 10 kt...becoming S with gusts up to 20 kt after midnight. Seas 3 to 5 ft. Showers likely.
Tue
SW winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 6 ft. A chance of showers.
Tue Night
W winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft.
Wed
W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft.
Wed Night
W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft.
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ABOUT THIS FORECAST

Last Update: 247 PM EDT FRI APR 28 2017
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