National Weather Service United States Department of Commerce

Rain, thunderstorms possible for parts of Texas and Gulf Coast; additional rain and mountain snow forecast out West

A developing storm system will bring rain and thunderstorms across parts of South Texas and the western Gulf Coast on Thursday. Some of the thunderstorms that develop late Thursday night into Friday have the potential to be severe. Meanwhile, additional rainfall and mountain snow is forecast for northern California and the Pacific Northwest.
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Last Update: 259 PM CST THU DEC 18 2014

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Bays and Waterways from Baffin Bay to Port Aransas

Marine Zone Forecast





  • SynopsisA WEAK TO MODERATE SOUTHERLY FLOW CAN BE EXPECTED TONIGHT THROUGH FRIDAY MORNING...ALONG WITH SCATTERED SHOWERS AND THUNDERSTORMS. A COLD FRONT IS EXPECTED TO MOVE ACROSS THE COASTAL WATERS BY MID TO LATE AFTERNOON FRIDAY WITH SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS ALONG THE COLD FRONT. A MODERATE TO STRONG OFFSHORE FLOW WILL DEVELOP IN ITS WAKE THROUGH FRIDAY NIGHT. SHOWERS AND THUNDERSTORMS CAN BE EXPECTED TO END FROM WEST TO EAST THROUGH FRIDAY NIGHT...WITH DRIER CONDITIONS ON SATURDAY. AN UPPER LEVEL DISTURBANCE WILL PRODUCE ANOTHER ROUND OF RAIN ON SUNDAY. THE RAIN WILL END SUNDAY EVENING AS THE DISTURBANCE EXITS TO THE EAST. BRIEF ONSHORE FLOW IS EXPECTED ON MONDAY AHEAD OF THE NEXT COLD FRONT ON TUESDAY. MODERATE TO STRONG OFFSHORE FLOW AND HIGHER SEAS ARE EXPECTED BEHIND THE FRONT.
  • Tonight South wind around 10 knots. Bays slightly choppy. A slight chance of thunderstorms in the evening. A chance of showers. A chance of thunderstorms after midnight.
  • Friday Southwest wind around 10 knots shifting west in the afternoon. Bays slightly choppy to occasionally choppy. Showers and thunderstorms likely in the morning...then a slight chance of showers and thunderstorms in the afternoon.
  • Friday Night North wind 10 to 15 knots. Bays slightly choppy to occasionally choppy.
  • Saturday Northeast wind 10 to 15 knots. Bays slightly choppy to occasionally choppy.
  • Saturday Night Northeast wind 5 to 10 knots. Bays smooth to slightly choppy.
  • Sunday Northeast wind 10 to 15 knots decreasing to 5 to 10 knots in the afternoon. Bays slightly choppy to occasionally choppy. A chance of showers.
  • Sunday Night East wind around 5 knots shifting south after midnight. Bays smooth.
  • Monday Southwest wind 5 to 10 knots. Bays smooth.
  • Monday Night Southwest wind around 10 knots. Bays slightly choppy.
  • Tuesday West wind around 10 knots shifting north in the afternoon. Bays slightly choppy to occasionally choppy.
  • Tuesday Night North wind 10 to 15 knots. Bays slightly choppy to occasionally choppy.



Additional Forecasts and Information

Zone Area Forecast for Bays and Waterways from Baffin Bay to Port Aransas
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