000
AGXX40 KNHC 230722
MIMATS

MARINE WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
230 AM EST TUE JAN 23 2008
 
MARINE WEATHER DISCUSSION FOR GULF OF MEXICO...CARIBBEAN SEA AND 
SOUTHWEST NORTH ATLC S OF 31N W OF 55W.

UPPER LEVELS...
BROAD RIDGE COVERS ENTIRE GULF OF MEXICO WITH ALMOST A FLATTENED 
CREST AS WIND ACROSS CONUS S OF 40N REMAIN ZONAL WITH 140 KT 
JTST OVER NRN TEXAS THROUGH NRN SOUTH CAROLINA.  WEAK SHORTWAVE 
TROUGH NEAR 29N69W PROMPTING SCATTERED CONVECTION IN THAT SW N 
ATLC CORNER...WHICH SHOULD BE MOVING OUT OF AREA WITHIN NEXT 24 
HRS.  LARGE AMOUNTS OF MOISTURE COVER NRN HALF OF GULF...MOST OF 
FLORIDA PENINSULA AND SW N ATLC N OF 26N.  OTHERWISE REMAINDER 
OF AREA STAYS FAIRLY DRY UNDER CARIBBEAN RIDGE ALOFT WHICH 
PRODUCES WIDESPREAD MODERATE TO STRONG SUBSIDENCE OVER BASIN AND 
TRPCL ATLC REGION.  

AT THE SURFACE...
WEAK SURFACE TROUGH ALONG 88W FROM 23N-29N FLARING WIDELY 
SCATTERED CONVECTION WITHIN 120 NM E OF AXIS FROM 26N-28N.  WEAK 
COLD FRONT ENTERS NWRN GULF OF MEXICO AND STALLS ALONG 28N-29N 
UNTIL LOW PRES CENTER 1010 MB DEVELOPS NEAR CAPE HATTERAS AND 
GIVES IT ENERGY TO PUSH ACROSS FLORIDA INTO SW N ATLC REACHING 
226N65W TO 20N72W LATE FRI THEN EXIT BASIN SAT.  STRONG WINDS 
DEVELOPING N OF COLD FRONT AND N OF 26N E OF FRONT.  RIDGE MOVE 
E ALONG 35N OVER ATLC AND DOMINATE FLOW OVER AREA THROUGH SUN. 

CARIBBEAN SEA STILL UNDER TIGHT GRADIENT WITH 20-30 KT TRADES 
ACROSS MOST BASIN AND TRPCL ATLC AREA.  WINDS DIMINISH FRI AS 
ATLC LOW PRES FORCES HIGH PRES CENTER OVER CENTRAL ATLC MORE TO 
THE EAST.  LINGERING SWELLS LIKELY LINGER TILL SUN. 

WARNINGS...
ATLANTIC...
NONE.

CARIBBEAN...
NONE.

GULF OF MEXICO...
NONE.

FORECASTER WALLY BARNES