000
AGXX40 KNHC 150531
MIMATS

MARINE WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
130 AM EDT SAT SEP 15 2007

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

MID LEVEL RIDGE WITH CENTER OVER SRN PLAINS TONIGHT EXTENDS ENE 
TO 33N45W. STRONG SHORTWAVE IN WESTERLIES SWINGING EWD OVER 
GREATLAKES LOWERING MID LEVEL HEIGHTS OVER SE CONUS. ON THE 
SURFACE TONIGHT T.S. INGRID LUMBERING ALONG 500 NM E OF THE 
LESSER ANTILLES TOWARD THE WNW AT 8 KT. SYSTEM ON S SIDE OF 
BROAD FLAT MID LEVEL RIDGE. TRPL WAVES ALONG 32W..43W..67W AND 
92W ALL MOVING W 10 TO 15 KT. A 1024 MB HIGH NEAR 324N60W RIDGES 
SW TO 27N80W. 

LATER DAY 1 LARGE SCALE MID LEVEL TROUGH SWINGS OFF ERN SEABOARD 
ALONG 75W. MID LEVEL RIDGING HOLDING FIRM OVER SRN PLAINS AND 
NEW CENTER NEAR 33N58W. ON THE SURFACE LATER DAY 1 INGRID 
FORECAST TO WEAKEN TO A T.D. AND CONTINUE ON WNW COURSE. HIGH 
CENTER NEAR 33N55W WITH AXIS WSW TO 28N80W. WEAK COLD FRONT 
PUSHES OFF SE COAST AND EXTENDS BACK ACROSS W CENTRAL GULF WITH 
WINDS 15 TO 20 KT N OF FRONT. CARIB WINDS LIGHT TO MODERATE.

FOR DAY 2 WITH LACK OF GOOD SUPPLY OF COLD AIR ALOFT..MID LEVEL 
HEIGHTS BEGIN TO RISE ALONG ERN SEABOARD AND LARGE SCALE TROUGH 
WEAKENS. MID LEVEL TROUGHING TRYING TO BUILD BACK ALONG 33N WWD 
TO 50W. MID LEVEL RIDGE CENTER REMAINS OVER SRN PLAINS. ON THE 
SURFACE DAY 2 T.D. INGRID FORECAST TO BE NEAR 19N56W STILL 
MOVING WNW. FRONT OVER GULF DISSIPATING BUT NE WINDS TO 15 KT 
CONTINUE OVER NRN GULF. MOST OTHER AREAS WINDS 10 TO 15 KT. 

OUTLOOK PERIOD...

FOR DAY 3 MID LEVEL TROUGH WEAKENS ALONG MID ATLC COAST WHILE 
RIDGES GAIN STRENGTH. ONE OVER SRN MS VALLEY AND THE OTHER OVER 
THE NE ATLC. WEAK CUTOFF LOW FORMS NEAR 33N52W DRIFTING W. ON 
THE SURFACE DAY 3 T.D. INGRID FORECAST TO BE NEAR 21N58W. WEAK 
RIDGE ALONG 30N. GFS MODEL PICKS UP ON WEAK LOW NEAR 12N47W WITH 
WINDS TO 20 KT. 

FOR DAY 4 LITTLE CHANGE TO MID LEVEL PATTERN WITH STRONG HIGH 
CELLS OVER LOWER MS VALLEY AND THE OTHER OVER THE NE ATLC. WEAK 
CUTOFF NEAR 33N52W. ON THE SURFACE DAY 4 T.D. INGRID FORECAST TO 
BE NEAR 23N60W. SOME INCREASE IN NE WINDS OFF NE FL COAST BUT 
LOOKS LITTLE OVERDONE BY MODEL. WEAK TRPL WAVE ALONG 52W WITH 
LIGHT WINDS. NE GULF WINDS NE TO 20 KT BEHIND A FRONT THAT 
EXTENDS NE OVER N FL. 

FOR DAY 5 LOWER MS VALLEY HIGH CENTER LIFTS NE TO OH VALLEY AS A 
CUTOFF LOW FORMS OVER FL. FLAT MID LEVEL RIDGE COVERS MOST OF 
AREA AND STIRRING CURRENTS FOR INGRID WEAK. ON THE SURFACE DAY 5 
T.D. INGRID DRIFTS TO NEAR 25N60W. WINDS OVER GULF E OF 90W 
FORECAST TO BE NE TO 20 KT WITH RIDGE OF HIGH PRES OVER SRN 
CONUS. TROUGH SETS UP OVER NW CARIB AND FL WITH LIGHT WINDS. 
WEAK TRPL WAVES ALONG 42W AND 55W.
 
WARNINGS...
ATLANTIC...
NONE.

CARIBBEAN...
NONE.

GULF OF MEXICO... 
NONE.

FORECASTER RRG