000
AGXX40 KNHC 171454
MIMATS

MARINE WEATHER DISCUSSION   
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
200 PM EDT MON MAY 17 2010

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

WEAK TROUGH OVER THE NE GULF OF MEXICO FROM THE FLORIDA 
PANHANDLE TO 26N87W WILL DISSIPATE THIS EVENING. OTHERWISE
WEAK HIGH PRES RIDGE ACROSS THE GULF. THE RIDGE WILL MOVE E AND 
SLY RETURN FLOW WILL INCREASE TO 15-20 KT OVER THE NW GULF THU
THEN DECREASE LATE FRI AND SAT. LIGHT AND VARIABLE WINDS N OF
25N E OF 90W THROUGH WED NIGHT...WITH E TO SE WINDS 10-15 ACROSS 
THE ENTIRE GULF THU THROUGH SAT.

HIGH PRES RIDGE ACROSS THE N PORTION OF THE ATLC ZONE...WITH
ENOUGH OF A PRES GRADIENT TO PRODUCE ELY WINDS 15-20 KT ALONG
THE SOUTHERN PERIPHERY OF THE RIDGE...GENERALLY S OF 24N. SLY 
WINDS WILL BRIEFLY INCREASE TO 15 TO 20 KT OVER THE NW PORTION 
OF THE AREA TONIGHT AND TUE AS A WEAK FRONT/TROUGH APPROACHES
THE SE U.S. COAST. THE FRONT MOVES INTO THE FAR NW PORTION
OF THE AREA THU THEN DISSIPATES LATE FRI. WINDS WILL BE LIGHT 
WITH THE FRONT. THE GFS DEVELOPS A LOW OVER THE SE PORTION OF 
THE AREA FRI THEN MOVES IT NE SAT. WILL WILL LAY OFF MENTIONING
THE LOW FOR NOW AND SEE WHAT LATER MODEL RUNS DEPICT.

HIGH PRES ACROSS THE ATLC COMBINED WITH LOWER PRES OVER S 
AMERICA IS PRODUCING 20-25 KT WINDS ACROSS THE S CENTRAL
CARIBBEAN. AS THE HIGH WEAKENS AND MOVES E IN RESPONSE TO AN 
APPROACHING COLD FRONT THE PRES GRADIENT WILL WEAKEN AND
THE WINDS WILL DECREASE TO 15 TO 20 KT TUE WITH WINDS BELOW
20 KT ACROSS THE ENTIRE CARIBBEAN SAT.

WARNINGS...
ATLC...
.NONE.

CARIBBEAN...
.NONE.

GULF OF MEXICO...
.NONE.

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

$$
FORECASTER DGS