National Weather Service United States Department of Commerce

Cold Front Crossing the Central U.S.

A cold front over the Northern Rockies will move eastward to the Upper Mississippi Valley/Central Plains by Monday. Rain will develop along the boundary over the Upper Midwest and move into the Upper Great Lakes by Monday. Some of the thunderstorms could become severe in portions of Texas through Monday.
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Last Update: 330 AM CDT SUN APR 20 2014

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Bays and Waterways from Baffin Bay to Port Aransas

Marine Zone Forecast

...SMALL CRAFT SHOULD EXERCISE CAUTION...



  • SynopsisA WEAK TO MODERATE ONSHORE FLOW IS EXPECTED TODAY DUE TO SURFACE HIGH PRESSURE OVER THE NORTHWEST GULF OF MEXICO AND SURFACE LOW PRESSURE NEAR THE RIO GRANDE. WEAK TO MODERATE ONSHORE FLOW WILL CONTINUE MONDAY. A SERIES OF WEAK UPPER LEVEL DISTURBANCES WILL CONTRIBUTE TO ISOLATED SHOWERS AND THUNDERSTORMS TONIGHT THROUGH TUESDAY MORNING. A WEAK TO MODERATE SOUTHEAST FLOW WILL BECOME LIGHT AND VARIABLE AT TIMES TUESDAY AS A DECAYING COLD FRONT MOVES INTO SOUTH TEXAS. THE FLOW WILL THEN BECOME MODERATE SOUTH TO SOUTHEAST WEDNESDAY AND CONTINUE THROUGH THURSDAY NIGHT.
  • Today Southeast wind around 5 knots increasing to 15 to 20 knots. Bays choppy. A slight chance of showers and thunderstorms in the afternoon.
  • Tonight Southeast wind 15 to 20 knots decreasing to 5 to 10 knots after midnight. Bays choppy. A slight chance of thunderstorms in the evening. A slight chance of showers.
  • Monday Southeast wind 5 to 10 knots increasing to 10 to 15 knots in the afternoon. Bays slightly choppy to occasionally choppy. A slight chance of showers. A slight chance of thunderstorms in the afternoon.
  • Monday Night Southeast wind 10 to 15 knots decreasing to 5 to 10 knots after midnight. Bays slightly choppy to occasionally choppy. A slight chance of showers and thunderstorms.
  • Tuesday Southeast wind 5 to 10 knots. Bays smooth. A slight chance of thunderstorms in the morning. A slight chance of showers.
  • Tuesday Night Southeast wind 5 to 10 knots. Bays smooth.
  • Wednesday Southeast wind 5 to 10 knots increasing to 10 to 15 knots in the afternoon. Bays slightly choppy to occasionally choppy.
  • Wednesday Night Southeast wind 10 to 15 knots. Bays slightly choppy to occasionally choppy.
  • Thursday Southeast wind 10 to 15 knots. Bays slightly choppy to occasionally choppy.
  • Thursday Night Southeast wind 10 to 15 knots decreasing to 5 to 10 knots after midnight. Bays slightly choppy to occasionally choppy.



Additional Forecasts and Information

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