000
AGXX40 KNHC 170608
MIMATS

MARINE WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
130 AM EST THU JAN 17 2008
 
MARINE WEATHER DISCUSSION FOR GULF OF MEXICO...CARIBBEAN SEA AND 
SOUTHWEST NORTH ATLC S OF 31N W OF 55W.

SHORTWAVE TROUGH IN MID LEVELS OVER SRN CONUS TONIGHT WASHING 
OUT AS IT MOVES THROUGH RIDGE ALONG 75W. NEXT SHORTWAVE IN NRN 
BRANCH OF WESTERLIES DIVING SE OVER CENTRAL PLAINS. ON THE 
SURFACE TONIGHT LOW PRES OVER N CENTRAL GULF MOVING ENE. SQUALL 
LINE OVER ERN GULF WITH WIND GUSTS TO 37 KT. WINDS 20 TO 30 KT 
BETWEEN 75W AND 90W TONIGHT. CARIB WINDS 20 TO 25 KT. ATLC N OF 
30N BETWEEN 40W AND 60W 25 TO 30 KT. 

LATER DAY 1 LARGE MID LEVEL RIDGE ALONG 20N BETWEEN 55W AND 90W. 
SHORTWAVE OVER CENTRAL PLAINS MOVING E. STRONG SWLY FLOW OVER 
GULF. ON THE SURFACE LATER DAY 1 WEAKENING LOW PRES MOVES TO CAR 
COAST WITH WINDS DIMINISHING OVER NE GULF. ATLC N OF 28N W OF 
70W STILL 20 TO 30 KT. CARIB WINDS 20 TO 25 KT E OF 75W. 

FOR DAY 2 STRONG MID LEVEL RIDGE CENTERED NEAR 22N72W. SEVERAL 
SHORTWAVE IN SRN BRANCH AND NRN BRANCH SWEEPING E AND NE OVER 
CENTRAL CONUS. ON THE SURFACE DAY 2 COLD FRONT STALLS OVER 
CENTRAL GULF WITH WINDS TO 20 KT. 1026 MB HIGH NEAR 33N60W WILL 
MAINTAIN MODERATE E WINDS OVER CARIB. ATLC TRADES TO 20 KT S OF 
20N. 

OUTLOOK PERIOD...

FOR DAY 3 MID LEVEL TROUGHS CONSOLIDATE OVER MIDWEST INTO LARGE 
AMPLITUDE TROUGH WITH VERY TIGHT MID LEVEL GRADIENT OVER SE AND 
ERN CONUS. MID LEVEL RIDGE CENTERED NEAR 23N67W. ON THE SURFACE 
DAY 3 ANOTHER LOW CENTER FORMS OVER WRN GULF AND MOVES NE AS A 
STRONG SURGE OF COLD AIR MOVES SWD OVER THE WRN AND NRN GULF 
WITH WINDS TO 30 KT POSSIBLE GALE FORCE. FRONT MOVES TO JUST E 
OF NE FL WITH SLY WINDS INCREASING 25 TO 30 KT. 1025 MB HIGH 
MOVES TO 32N50W WITH 20 KT WINDS OVER MUCH OF ATLC WATERS AND 20 
TO 25 KT OVER CARIB E OF 78W.

FOR DAY 4 STRONG UPPER TROUGH MOVES OFF NE COAST OF CONUS WITH 
MID LEVEL FLOW BECOMING ZONAL W OF 80W. MID LEVEL RIDGE MOVES TO 
24N60W. ON THE SURFACE DAY 4 COLD FRONT MOVES TO CENTRAL BAHAMAS 
WHILE POLAR AIRMASS MOVES TO 35N85W. WINDS OVER GULF REMAIN 20 
TO 25 KT. SAME FOR CARIB. ATLC TRADES E OF 55W NELY 20 KT. 

FOR DAY 5 LARGE MID LEVEL RIDGE COVERS AREA S OF 25N W OF 50W. 
STRONG ZONAL FLOW AT MID LEVELS BECOMES MORE SWLY W OF 90W. ON 
THE SURFACE DAY 5 POLAR HIGH MOVES OFF SE COAST MAINTAINING 20 
TO 25 KT WINDS BETWEEN 65W AND 95W AND OVER CARIB. 

WARNINGS...
ATLANTIC...
NONE.

CARIBBEAN...
NONE.

GULF OF MEXICO...
NONE.

FORECASTER RRG