000
AGXX40 KNHC 130730
MIMATS

MARINE WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
330 AM EDT WED JUN 13 2007

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

UPPER LEVELS...
BROAD TROUGH EXTEND FROM WELL N OF AREA ACROSS NW CORNER OF SW N 
ATLC AND FLORIDA TO CYCLONIC VORTEX OVER ERN BAY OF CAMPECHE.  
MOSTLY MOIST CYCLONIC FLOW OVER SW N ATLC WITH 75 KT JET CORE ON 
ITS WAY OUT OF REGION...BUT SECOND STRONGER ONE APPROACHING NOW 
OVER NW FLORIDA LIKELY TO FEED ON MOISTURE FOR MUCH NEEDED 
PRECIPITATION OVER PENINSULA.  

WEAK ANTICYCLONIC CIRCULATION OVER SE TEXAS DOMINATE FLOW OVER 
NW GULF OF MEXICO KEPT FAIRLY DRY IN CONVERGING FLOW ALOFT.
TWO OTHER ANTICYCLONES...ONE OVER HONDURAS AND ANOTHER AT 14N69W
...MAINTAIN A STEADY ANTICYCLONIC FLOW OVER CARIBBEAN SEA...BUT 
ALSO ADVECTING PLENTY OF MOISTURE FROM E PAC ITCZ INTO NWRN 
CARIBBEAN AND ALONG GREATER ANTILLES ISLAND CHAIN.    

AT THE SURFACE...
SMALL LOW PRES CENTER 1010 MB OFF FLORIDA ATLC COAST AT 28N78W 
PROMPTING INCREASE IN WIND AND SEAS WITHIN 180 NM SE OF CENTER.
LOW PRES TO DRIFT NE THROUGH THU NIGHT AS SURFACE RIDGE REBUILDS 
ALONG 27N THROUGH REMAINDER OF FORECAST PERIOD.  ELSEWHERE IN SW 
N ATLC WINDS REMAIN LIGHT WITH SEAS LESS THAN 4 FT. 

CARIBBEAN TRADES REMAIN STRONG THROUGH FORECAST PERIOD AS LOW 
PRES 1008 MB OVER COAST OF COLOMBIA KEEPS GRADIENT TIGHT WITH 
ATLC RIDGE FORCED S BY LOW PRES MENTIONED ABOVE.  ONLY NW CORNER 
OF BASIN ESCAPES TRADE WINDS. 

GULF OF MEXICO ENJOYS RESPITE OF TURBULENT WEATHER AS WEAK HIGH 
PRES MAINTAINS FLAT PRES GRADIENT.  LIGHT WINDS WITH SEAS BELOW 
4 FT THROUGH MOST OF BASIN THROUGHOUT ENTIRE FORECAST PERIOD. 

WARNINGS...
ATLANTIC...NONE.

CARIBBEAN...NONE.

GULF OF MEXICO...NONE.

FORECASTER WALLY BARNES