000
AGXX40 KNHC 150703
MIMATS

MARINE WEATHER DISCUSSION 
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
305 AM EST MON MAR 15 2010

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

GULF OF MEXICO...
HIGH PRES CENTERED OVER THE CENTRAL GULF HAS A RIDGE NW TO TX/LA 
BORDER AND A RIDGE SE TO YUCATAN CHANNEL. EXPECT THIS SURFACE 
HIGH TO BE ABSORBED BY A STRONGER RIDGE BUILDING FROM THE 
CENTRAL CONUS ACROSS SW LA TO NW CUBA LATER TODAY. THE RIDGE IS 
EXPECTED TO SHIFT SLIGHTLY NE AND EXTEND FROM NE TX TO THE FL 
STRAITS BY MID WEEK. SLY WINDS OVER THE SW GULF WILL BECOME ELY 
TUE THEN NLY TUE NIGHT THROUGH WED NIGHT. THEREAFTER THE RIDGE 
SEEMS TO WEAKEN WITH A SURFACE HIGH REAPPEARING OFF THE CENTRAL 
TX COAST WITH WINDS BECOMING LGT VRBL NER THE HIGH OVER THE NW 
ZONE. AS THIS RIDGE WEAKENS AND SHIFTS SLIGHTLY A WEAK TROUGH 
WILL SWEEP ACROSS THE NORTHERN WATERS WED AND THU.  

TROPICAL ATLC AND CARIBBEAN SEA...
REMNANT FRONTAL TROUGH EXTENDS FROM THE WINDWARD PASSAGE TO NEAR 
THE NICARAGUA TO HONDURAS BORDER. SW SEGMENT OF TROUGH WILL 
LIKELY DRIFT NW WITH ENHANCEMENT IN SHOWERS AND NE TO SE WIND 
SHIFT. ATLC PORTION OF FRONT WILL CONTINUE TO PROGRESS SLOWLY E 
ACROSS THE WATERS N OF THE VIRGIN ISLANDS TUE AND THEN E OF THE 
LEEWARDS WED AND THU TRAILING BACK W TO HISPANIOLA. ELY TRADES 
WILL CONTINUE OVER THE E CARIBBEAN WHILE NLY FLOW DOMINATES THE 
NW CARIBBEAN. 

SW N ATLC...  
THE INITIAL COLD FRONT EXTENDS FROM 31N60W TO WINDWARD PASSAGE 
WITH A SECONDARY SURGE...ACCOMPANIED BY WLY 25 TO 30 KT...IS 
ALONG 70W ATTM. NW WINDS DIMINISH BELOW 20 KT ALL WATERS W OF 
65W WED AND ALL WATERS W OF 55W WED NIGHT. POST FRONTAL NLY FLOW 
CONTINUES THROUGH EARLY WED THEN A NW TO SE RIDGE SETS UP JUST E 
AND PARALLEL TO THE BAHAMIAN CHAIN WED NIGHT. AS THIS NW TO SW 
RIDGE SHIFTS E THU A TROUGH WILL SHIFT E OVER THE NW WATERS 
AMPLIFIED BY A COLD FRONT THU NIGHT BECOMING A BROAD TROUGH N OF 
22N ALONG 72W FRI.

WARNINGS...
ATLC...
.NONE.
 
CARIBBEAN...
.NONE.

GULF OF MEXICO...
.NONE.

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

$$
FORECASTER NELSON