000
AGXX40 KNHC 190617
MIMATS

MARINE WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
230 AM EDT THU JUL 19 2007

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

GULF OF MEXICO...WEAK HIGH PRESSURE WILL REMAIN IN CONTROL OF 
THE WEATHER PATTERN ACROSS THE GULF THROUGH THE UPCOMING 
WEEKEND...KEEPING WINDS MAINLY LIGHT AND VARIABLE IN THE 
NORTHERN PORTION. THIS HIGH WILL COMBINE WITH LOWER PRES IN 
SOUTHERN MEXICO IN ORDER TO KEEP 15 TO 20 KT E TO SE WINDS AND 
SEAS UP TO 6 FT IN THE SW GULF THROUGH FRI THEN DECREASE DURING 
THE WEEKEND. SCATTERED MODERATE CONVECTION IS OVER THE NW CORNER 
OF THE GULF ASSOCIATED WITH A SURFACE TROUGH THAT EXTENDS NE 
ALONG 26N96W 28N94W FROM A 1012 MB SFC LOW LOCATED OVER NE 
MEXICO. 

CARIBBEAN SEA...THE ATLC RIDGE COMBINED WITH THE SEMI-PERMANENT 
LOW PRES IN NORTHERN COLOMBIA WILL MAINTAIN AT LEAST 20 KT 
TRADEWINDS IN THE CARIBBEAN SEA S OF 18N EAST OF 80W. EARLIER 
QSCAT PASS SHOWED WINDS OF 20 TO 25 KT JUST OFF THE COLOMBIAN 
COAST. THE WINDS ARE EXPECTED TO DECREASE SOME BY FRI AS THE 
ATLC RIDGE WEAKENS...BUT THEN PICK UP AGAIN TO AT LEAST 20 KT 
FOR SAT AND SUN THEN DECREASE ON MON. A TROPICAL WAVE WILL MOVE 
ACROSS THE EASTERN CARIBBEAN TODAY AND OVER THE CENTRAL 
CARIBBEAN FRI...GENERATING SOME SHOWER ACTIVITY.

SW ATLC...ATLC RIDGE REMAINS ALONG 30N/31N UNTIL LATE TODAY THEN 
MOVE E FRI AS COLD FRONT MOVES INTO THE SE U.S. THE COLD FRONT 
REMAINS ALONG THE COAST SAT AND MOVES OFFSHORE SUN...THEN 
DISSIPATES S OF 31N MON. SW WINDS WILL BRIEFLY INCREASE TO 15 KT 
FRI THROUGH SAT... OTHERWISE WINDS WILL BE 10 KT OR LESS N OF 
25N AND 10-15 KT S OF 25N. A SFC TROUGH LIES ALONG 63W/64W FROM 
20N TO 30N. SCATTERED MODERATE CONVECTION IS FOUND JUST AHEAD OF 
THE TROUGH AXIS N OF 25N. 

WARNINGS...
ATLANTIC...
NONE.

CARIBBEAN...
NONE.

GULF OF MEXICO...
NONE.

FORECASTER GR