000
AGXX40 KNHC 261724
MIMATS

MARINE WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
130 PM EDT THU JUN 26 2008

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

UPPER LEVELS...
TRPCL UPPER TROPOSPHERIC TROUGH...TUTT...EXTENDS SW N ATLC FROM 
23N65W ACROSS ERN HISPANIOLA TO ERN PANAMA.  SWATH OF DRY AIR 
MASS WITHIN 4 DEG OF AXIS.  NARROW RIDGE ALOFT FROM 31N76W TO 
ANTICYCLONIC GYRE OVER ISLE OF YOUTH IN CUBA ADVECTING PLENTY OF 
MOISTURE ACROSS BAY OF CAMPECHE TO SRN HALF OF FLORIDA 
PENINSULA.  RIDGE COMBINES WITH WEAK UPPER LEVEL TROUGH DIGGING 
ACROSS WRN GLFMEX TO PRODUCE MODERATE TO STRONG DIFFLUENT FLOW 
ALOFT OVER CREST OF TRPCL WAVE NOW ALONG 86W.  NUMEROUS TSTMS 
OVER CENTRAL GLFMEX AND NERN CARIBBEAN INCLUDING YUCATAN 
PENINSULA AND WRN CUBA SHOULD DECREASE IN COVERAGE AND INTENSITY 
DURING NEXT 12-18 HRS.  

ANTICYCLONE CENTER ALOFT AT 13N54W HAS RIDGE EXTEND OVER ERN 
CARIBBEAN ADVECTING ABUNDANT TRPCL MOISTURE BUT LACKING ANY 
SIGNIFICANT UPLIFT MECHANISM TO PRODUCE DEEP CONVECTION.  ONLY 
CANDIDATE FOR THIS WOULD BE TRPCL WAVE NOW ALONG 54W BUT BEING  
S OF 11N PRECLUDES SERIOUS DEVELOPMENT AT THIS TIME.  

ELSEWHERE AT THE SURFACE...
RIDGE ALONG 31N IN SW N ATLC AND GLFMEX REMAIN QUASI-STATIONARY 
WITH LITTLE SIGNIFICANT CHANGE IN WIND FLOW PATTERN IN ALL 
BASINS THROUGH FORECAST PERIOD.

WARNINGS...

ATLANTIC...
NONE. 

CARIBBEAN...
NONE.

GULF OF MEXICO...
NONE.

.FORECASTER WALLY BARNES. TROPICAL PREDICTION CENTER.