Severe Thunderstorm Threat Increasing This Week from the High Plains to Gulf Coast

A storm system will move from the Rockies to the East Coast during the next several days bringing a severe thunderstorm threat to many parts of the nation. On Thursday, large hail will be the main threat in the High Plains. By Friday a more widespread threat will develop in the ArkLaTex region where damaging winds, very large hail and tornadoes will be possible.
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Last Update: 1039 PM CDT WED MAR 22 2017

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Brownsville, TX Local Forecast Office

26NM NNE Port Mansfield TX

Marine Zone Forecast

SEAS ARE PROVIDED AS A RANGE OF THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES...ALONG WITH THE OCCASIONAL HEIGHT OF THE AVERAGE HIGHEST 10 PERCENT OF THE WAVES

Synopsis: SURFACE HIGH PRESSURE OVER THE GULF OF MEXICO WILL MAINTAIN LIGHT TO MODERATE SOUTHEAST WINDS AND MODERATE SEAS THROUGH TONIGHT. AN AREA OF LOW PRESSURE DEVELOPING IN THE PLAINS OVER THE NEXT COUPLE OF DAYS WILL RESULT IN A STRONGER PRESSURE GRADIENT. THIS WILL LEAD TO STRONGER WINDS AND HIGHER SEAS FROM THURSDAY THROUGH MONDAY ALONG THE LOWER TEXAS COASTLINE.

Rest Of Tonight
Southeast winds 12 to 16 knots. Seas 2 to 4 feet with occasional seas up to 5 feet.
Thursday
Southeast winds 13 to 18 knots increasing to 17 to 20 knots late in the afternoon. Seas 3 to 5 feet with occasional seas up to 6 feet.
Thursday Night
Southeast winds 21 to 26 knots. Seas 5 to 8 feet with occasional seas up to 10 feet.
Friday
South winds 20 to 25 knots diminishing to 16 to 21 knots in the late morning and afternoon. Seas 5 to 8 feet with occasional seas up to 10 feet.
Friday Night
South winds 15 to 20 knots diminishing to 10 to 14 knots. Seas 5 to 7 feet with occasional seas up to 9 feet.
Saturday
Southeast winds 9 to 14 knots. Seas 3 to 5 feet with occasional seas up to 6 feet.
Saturday Night
Southeast winds 12 to 16 knots. Seas 3 to 5 feet with occasional seas up to 6 feet.
Sunday
South winds 16 to 21 knots. Seas 3 to 5 feet with occasional seas up to 6 feet.
Sunday Night
South winds 17 to 20 knots. Seas 4 to 6 feet with occasional seas up to 8 feet.
Monday
Southeast winds 14 to 19 knots. Seas 4 to 6 feet with occasional seas up to 8 feet.
Monday Night
Southeast winds 8 to 13 knots. Seas 3 to 5 feet with occasional seas up to 6 feet.
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Last Update: 1039 PM CDT WED MAR 22 2017
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