000
AGXX40 KNHC 090511
MIMATS

MARINE WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
130 AM EDT SAT JUN 9 2007

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

TWO LARGE MID LEVEL FEATURES DOMINATE THE SCENE TONIGHT..ONE A 
CLOSED LOW NEAR 37N60W..THE OTHER A RIDGE CENTERED OVER THE NW 
GULF. IN BETWEEN LIES A WEAK MID LEVEL TROUGH OVER THE WRN 
BAHAMAS WORKING IT'S WAY WSW AROUND THE BASE OF THE RIDGE. ON 
THE SURFACE TONIGHT WEAK TRPL WAVES WERE NEAR 33W..60W AND 70W. 
THE ATLC RIDGE WAS OVER MID OCEAN EXTENDING W TO NEAR 55W. A 
1018 MB HIGH WAS NEAR 30N70W. 

LATER DAY 1 MID LEVEL FEATURES REMAIN NEARLY STATIONARY..EXCEPT 
FOR THE WEAK TROUGH OVER THE WRN BAHAMAS WHICH DRIFTS WSW TO THE 
FL STRAITS. ON THE SURFACE LATER DAY 1 GFS MODEL PICKS UP ON 
TRPL WAVE OVER ERN CARIB SHOWING WIND SHIFT. WINDS OVER THE 
ENTIRE REGION MOSTLY LIGHT TO MODERATE UNDER WEAK GRADIENT. 

FOR DAY 2 STRONG CUTOFF LOW BEGINS TO LIFT NWD ALONG 60W WITH 
NRN BRANCH OF WESTERLIES DIVING SE OFF THE MID ATLC COAST AND 
AROUND THE BASE OF THE CUTOFF. NW GULF RIDGE BULGING NWD ALONG 
95W. WEAK MID LEVEL TROUGH CONTINUES SLIDING SW OVER NW CARIB. 
MID LEVEL RIDGE WORKING IT'S WAY WWD ALONG 20N W TO 65W. ON THE 
SURFACE DAY 2 ATLC RIDGE BEGINS TO STRENGTHEN SLIGHTLY ALONG 26N 
W TO 70W. SELY WINDS INCREASE OVER ERN CARIB AS WAVE MOVES TO 
CENTRAL PORTION. GULF WINDS REMAIN LIGHT.

OUTLOOK PERIOD...

FOR DAY 3 STRONG CUTOFF LOW CONTINUES MOVING N ALONG 60W 
ALLOWING NRN BRANCH OF WESTERLIES TO SWING AROUND THE SRN 
PERIMETER BRUSHING OUR REGION N OF 28N. MID LEVEL RIDGE OVER NW 
GULF CONTINUES BUILDING NWD INTO CENTRAL CANADA. MID LEVEL RIDGE 
OVER TRPL ATLC WORKS IT'S WAY WWD ALOGN 20N TO 80W. ON THE 
SURFACE DAY 3 ATLC RIDGE CENTER 1025 MB NEAR 30N40W WITH AXIS 
WSW TO 27N80W. ATLC TRADES 20 KT S OF 18N E OF 60W. CARIB WINDS 
20 KT E OF 75W. GULF WINDS REMAIN LIGHT.

FOR DAY 4 CUTOFF LOW REMAINS NEAR 40N60W WHILE MID LEVEL RIDGE 
STATIONARY ALONG 90W INTO CANADA THUS IN BETWEEN FAIRLY STRONG 
MID LEVEL NLY FLOW SETS UP ALONG E COAST. MODERATE SHORTWAVE 
DROPS SWD ALONG CAR COAST. MID LEVEL RIDGE OVER TRPL ATLC ALONG 
20N EXTENDS W TO 70W. ON THE SURFACE DAY 4 ATLC RIDGE CENTER 
1025 MB NEAR 29N40W WITH AXIS EXTENDING WSW TO 26N75W. MODERATE 
TRADES OVER ATLC S OF 20N E OF 60W AND IN CARIB E OF 75W. ATLC W 
OF 65W AND GULF REMAIN QUIET WITH LIGHT WINDS.

FOR DAY 5 MODERATE SHORTWAVE CONTINUES SWD SLOWLY TO OFF SE 
COAST AND WILL INFLUENCE OUR REGION. MID LEVEL RIDGE OVER TRPL 
ATLC E OF 70W. MID LEVEL RIDGE OVER GULF SHOWS SIGNS OF 
WEAKENING. ON THE SURFACE DAY 5 WEAK LOW PRES DEVELOPS OVER N FL 
IN CONJUCTION WITH SHORTWAVE. NOT MUCH AFFECT ON WINDS OVER ATLC 
W OF 70W OR GULF. ATLC RIDGE CENTER 1024 MB STATIONARY NEAR 
29N41W WITH LITTLE CHANGE TO TRADES OVER ATLC AND CARIB E OF 75W.

WARNINGS...
ATLANTIC...NONE.

CARIBBEAN...NONE.

GULF OF MEXICO...NONE.

FORECASTER RRG