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 SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE  HEIGHT OF THE HIGHEST 1/3 OF THE WAVES. INDIVIDUAL WAVES MAY BE  MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.        GMZ001-202045-  SYNOPSIS FOR THE GULF OF MEXICO  337 AM EST FRI JAN 20 2017      .SYNOPSIS...A SQUALL LINE IN THE NE AND N CENTRAL GULF WILL  GRADUALLY DISSIPATE TODAY. A VERY STRONG COLD FRONT IS FORECAST  TO SWEEP ACROSS THE ENTIRE GULF OVER THE WEEKEND ACCOMPANIED BY  A LARGE AREA OF STRONG TO GALE FORCE WINDS ACROSS MOST OF THE  WATERS N OF 22N BOTH E AND W OF THE FRONT. CONDITIONS WILL  GREATLY IMPROVE BY TUE AS HIGH PRES BUILDS IN THE WAKE OF THE  FRONT.    $$
 SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE  HEIGHT OF THE HIGHEST 1/3 OF THE WAVES. INDIVIDUAL WAVES MAY BE  MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.        GMZ017-202045-  W CENTRAL GULF FROM 22N TO 26N W OF 94W-  337 AM EST FRI JAN 20 2017    GALE CONDITIONS POSSIBLE SUN    TODAY  SE TO S WINDS 15 TO 20 KT. SEAS 3 TO 5 FT.  TONIGHT  S WINDS 15 TO 20 KT. SEAS 4 TO 6 FT.  SAT  SW WINDS 15 TO 20 KT. SEAS 4 TO 6 FT.  SAT NIGHT  S WINDS 15 TO 20 KT. SEAS 4 TO 6 FT.  SUN  NW TO N WINDS 25 TO 35 KT. SEAS 6 TO 8 FT...BUILDING  TO 9 TO 14 FT IN NW TO N SWELL IN THE AFTERNOON.  SUN NIGHT  NW TO N WINDS 20 TO 30 KT. SEAS 9 TO 14 FT IN N SWELL.  MON  NW TO N WINDS 15 TO 20 KT...BECOMING NW 5 TO 10 KT IN THE  AFTERNOON. SEAS 6 TO 8 FT IN N SWELL.  MON NIGHT  SE TO S WINDS 15 TO 20 KT. SEAS 4 TO 6 FT.  TUE  S WINDS 20 TO 25 KT. SEAS 5 TO 7 FT.  TUE NIGHT  SE TO S WINDS 20 TO 25 KT. SEAS 6 TO 8 FT.    $$

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