000
AGXX40 KNHC 011741
MIMATS

MARINE WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
145 PM EDT THU APR 1 2010

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

GULF OF MEXICO...
SURFACE HIGH NEAR FL BIG BEND WILL CONTINUE SHIFT NE WITH RIDGE 
EXTENDING W TO SE TX. LIGHT VARIABLE WINDS ARE NE OF RIDGE WITH 
SE WINDS AT 15 TO 20 KT OVER WATERS SW OF RIDGE. EXPECT GRADIENT 
TO TIGHTEN A LITTLE MORE TONIGHT PRODUCING BRIEF SWATH OF 20 TO 
25 KT OVER W CENTRAL GULF. GRADIENT RELAXES MIDDAY FRI AHEAD OF 
THE NEXT COLD FRONT MOVING OFF THE TX COAST LATE FRI NIGHT. 
WINDS QUICKLY VEER TO NE AT 15 KT BEHIND FRONT WHICH WILL STALL 
N TO S ALONG ROUGHLY 93W SAT. AS ATLC RIDGE BUILDS W SAT NIGHT 
INTO SUN REMNANTS OF FRONT WILL MOVE BACK NW AS WARM FRONT AND 
TO PSN WELL INLAND BY SUN AFTERNOON...BUT ACCOMPANIED BY 
SHOWERS. SE RETURN FLOW IN THE 15 TO 20 KT RANGE WILL CONTINUE 
THROUGH REMAINDER PERIOD. BEST GUESS FOR NOW IS NEXT COLD FRONT 
TX COAST AROUND SUNSET WED.

SW N ATLC W OF 55W...
A WEAKENING FRONTAL BOUNDARY FROM 31N57W TO HISPANIOLA HAS BEGUN 
TO MOVE E AGAIN WITH A SERIES OF POST FRONTAL NW SURGES WITH ONE 
ALREADY SE OF BERMUDA. THIS SHOULD PUSH FRONTAL REMNANTS SE OF 
FORECAST AREA TONIGHT WITH NW WINDS INCREASING TO 20 TO 30 KT 
OVER AREA N OF 25N E OF 70W THROUGH MIDDAY SAT. BY THEN 
ASSOCIATED NLY SWELLS ARRIVE AT NE CARIBBEAN PASSAGES. SURFACE 
LOW PRES WILL SHIFT SE TO NEAR 31N54W SUNRISE SAT THEN LIFT 
QUICKLY NE PULLING THE POST FRONTAL TROUGH THROUGH WATERS E OF 
65W. N WINDS OVER ATLC WATERS E OF 67W SHOULD DIMINISH BELOW 20 
KT MIDDAY SUN. SURFACE RIDGE FROM GA TO HISPANIOLA FRI WILL 
FLATTEN AS SURFACE HIGH CENTER SHIFTS E ACROSS NORTHERN WATERS 
STALLING NEAR 30N72W MON AND TUE WITH RIDGE E TO W ALONG 30N. 
THIS WILL SUPPORT E WINDS IN 15 TO 20 KT RANGE OVER AREA S OF 
25N EARLY NEXT WEEK THEN AS HIGH SHIFTS E GRADIENT WILL RELAX 
SOME BY MID WEEK.
   
CARIBBEAN SEA AND TROPICAL N ATLC...
A WEAKENING COLD FRONT WILL MOVE E INTO THE TROPICAL N ATLANTIC 
WATERS THIS AFTERNOON WHERE IT WILL CONTINUE TO WEAKEN AND DRIFT 
E AND SE THROUGH SUN. ELY TRADES WILL PREVAIL THROUGH REMAINDER 
OF THE FORECAST PERIOD...WITH THE ENHANCE AREA NEAR THE COAST OF 
COLOMBIA. 

WARNINGS...
ATLC...
.NONE.

CARIBBEAN...
.NONE.

GULF OF MEXICO...
.NONE.

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

$$
FORECASTER NELSON