000
AGXX40 KNHC 130542
MIMATS

MARINE WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
200 AM EDT TUE APR 13 2010

MARINE WEATHER DISCUSSION FOR GULF OF MEXICO...CARIBBEAN SEA AND 
SOUTHWEST NORTH ATLC S OF 31N W OF 55W

HIGH PRES RIDGE OVER GULF COAST STATES CONTINUE TO PRODUCE 15-20 
KT WINDS ACROSS MOST OF GULF OF MEXICO THRU TONIGHT. THE RIDGE 
STRENGTHENS WED AND THU WITH INCREASING WINDS ESPECIALLY IN SE 
GULF. WESTERLY GULFSTREAM CURRENT AGAINST STRONG EASTERLY WIND 
EXPECTED TO BUILD HIGHER SEAS ALONG STRAITS OF FLORIDA. THE PRES
GRADIENT WILL BE THE WEAKER IN THE SW GULF RESULTING IN LIGHTER
WINDS IN THAT AREA. WINDS ARE EXPECTED TO DIMINISH BELOW 20 KT 
FRI IN WESTERN GULF W OF 90W AND ACROSS THE ENTIRE AREA SAT.

DISSIPATING STATIONARY FRONT OVER THE ATLC FROM 30N65W TO 29N72W 
THEN A TROUGH TO S FLORIDA SHOULD DISSIPATE LATER TODAY. NE 
WINDS TO 20 KT W OF FRONT WILL DIMINISH LATER TODAY. HIGH PRES 
CENTER BUILDS N OF AREA WITH A TROUGH E OF THE AREA WILL PRODUCE 
NE WINDS 20-25 KT ACROSS MUCH OF THE AREA WED WITH WINDS 
DECREASING OVER THE NW PORTION OF THE AREA THU AS THE TROUGH 
MOVES E. HIGH PRES MOVES TO NEAR 30N75W FRI AND WINDS CONTINUE 
TO DECREASE. THE HIGH MOVE E SAT WITH MOSTLY LIGHT WINDS ACROSS 
MUCH OF THE AREA.
 
THE PRES GRADIENT ACROSS THE CARIBBEAN HAS WEAKENED AND THE 
WINDS HAVE DECREASED TO BELOW 20 KT ACROSS THE ENTIRE AREA.
THESE CONDITIONS ARE EXPECTED TO CONTINUE THROUGH FRI...THEN NE 
WINDS INCREASE TO 20 KT OVER THE NE CARIBBEAN AND NORTHERN 
TROPICAL ATLC ZONE AS A BACK DOOR COLD FRONT MOVES JUST E OF THE 
AREA ON SAT.

WARNINGS...
ATLC...
.NONE.

CARIBBEAN...
.NONE.

GULF OF MEXICO...
.NONE.

FOR ADDITIONAL INFORMATION PLEASE VISIT 
HTTP://WWW.HURRICANES.GOV/MARINE

$$
FORECASTER DGS