000 AGXX40 KNHC 030518 MIMATS MARINE WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 130 AM EDT SUN JUN 3 2007 MARINE WEATHER DISCUSSION FOR GULF OF MEXICO...CARIBBEAN SEA AND SOUTHWEST NORTH ATLC S OF 31N W OF 55W. MID LEVEL TROUGH OVER SE HAS TAKEN ON NEW LIFE WITH LOW LEVEL CENTER OF OLD BARRY. STRONG VORTICITY SIGNATURE JUST NW OF JAX MOVING ENE. MID LEVEL RIDGE GRUDGINGLY ALLOWING SYSTEM TO MOVE NE AS A STRONG SHORTWAVE IN THE NRN BRANCH DIVES SE OVER THE WRN GREATLAKES. MID LEVEL FLOW TURNING MORE NWLY W OF 90W WILL BRING IN DRIER AIR OVER GULF AS EVIDENCED IN WATER VAPOR TONIGHT. WEAK MID LEVEL TROUGHING OVER MID ATLC ALONG 50W HAS A DIGGING JET SEGMENT TONIGHT IN THE WATER VAPOR WHICH SHOWS THE NRN BRANCH STILL MAKING IT'S WAY S OF 30N IN EARLY JUNE. ON THE SURFACE TONIGHT T.D. BARRY ON THE SE GA COAST WITH GALE CONDITIONS N OF 27N W OF 74W TONIGHT. WEAK TROUGH PERSISTS OVER ATLC ALONG 45W DRIFTING E AND DISSIPATING. CONTINENTAL HIGH 1024 MB NEAR 31N61W. STRONGEST WINDS TONIGHT OVER ATLC W OF 70W AND ELY TRADES S OF 17N E OF 72W. LATER DAY 1 LARGE SCALE UPPER TROUGH SETTING UP OVER ERN CONUS AS ONE SHORTWAVE LIFTS NE AND ANOTHER MOVES IN BEHIND IT. CYCLONIC FLOW EXTENDS S OVER GULF TO 20N. MID LEVEL RIDGING COVERS AREA S OF 20N BULGING N ALONG 60W. ANOTHER RIDGE OVER THE ERN ATLC WITH A WEAKNESS IN THE PRES FIELD IN BETWEEN ALONG 50W. ON THE SURFACE LATER DAY 1 STRONG SW WINDS TO 30 KT OVER ATLC N OF 28N W OF 70W AS LOW PRES LIFTS NWD. OTHERWISE HIGH PRES DOMINATES THE REGION. GULF AND NW CARIB WINDS MOSTLY LIGHT WHILE ELY TRADES E OF 72W S OF 17N IN 20 KT RANGE. FOR DAY 2 LARGE SCALE MID LEVEL TROUGH PERSISTS OVER ERN CONUS EXTENDING S TO 23N. LITTLE CHANGE TO RIDGES OVER REGION. ON THE SURFACE DAY 2 WITH CENTRAL ATLC TROUGH FINALLY DISSIPATING..HIGH PRES BEGINS TO TAKE HOLD WITH RIDGE AXIS EXTENDING WWD ALONG 23N INTO CENTRAL GULF. ELY TRADES BUILD WWD OVER CARIB S OF 17N. OUTLOOK PERIOD... FOR DAY 3 LARGE SCALE UPPER TROUGH SHOWS NO SIGNS OF WEAKENING OVER ERN CONUS. NWLY FLOW W OF 80W ALLOWING WEAK IMPULSES TO WORK THEIR WAY INTO THE NRN GULF REGION. FLAT MID LEVEL RIDGE ALONG 20N W OF 60W BEGINS TO BUILD NWD ALONG 55W CAPPING OFF ANY INFLUENCE ALONG 50W OF NRN BRANCH INTO PREVAILING WEAKNESS IN PRES FIELD THUS MID LEVEL TROUGH ALONG 50W WEAKENS. ON THE SURFACE DAY 3 HIGH PRES DOMINATES THE SCENE EXTENDING FROM MID OCEAN BACK ALONG 23N INTO CENTRAL GULF THEN NWWD. ELY TRADES PREVAIL S OF 17N INTO WRN CARIB. GULF MOSTLY LIGHT TO MODERATE WINDS. FOR DAY 4 MID LEVEL TROUGH BEGINS TO MAKE IT'S EXIT FROM ERN CONUS AS HIGH PRES BUILDS OVER PLAINS. NEXT SHORTWAVE EXITING THE CENTRAL ROCKIES. WEAK SHORTWAVE MOVING E ALONG N GULF COAST OVER TOP OF MID LEVEL RIDGE THAT COVERS CUBA AND BAHAMAS. LARGE UPPER CLOSED LOW OVER NE ATLC WITH A BLOCKING RIDGE ALONG 50W MAINLY N OF 30N. OLD PERSISTENT TROUGH AT MID LEVELS ALONG 50W S OF 30N SHOWS SIGNS OF TRYING TO STRENGTHEN ONCE AGAIN. ON THE SURFACE DAY 4 WEAK HIGH CENTER 1019 MB NEAR 24N68W ANCHORS RIDGE ALONG 23N. SOME INCREASE IN SLY WINDS W OF 90W AS PRESSURES FALL OVER SRN PLAINS IN RESPONSE TO EXITING SHORTWAVE. ELY TRADES INCREASE OVER CARIB TO 25 KT WHILE ATLC TRADES DIMINISH TO 10 TO 15 KT. FOR DAY 5 AT MID LEVELS HIGH PRES BEGINS TO DOMINATE OVER GULF AND SW ATLC BULGING NWD OVER SRN CONUS. THIS ALLOWS NRN BRANCH WESTERLIES TO WORK THEIR WAY SE OVER MID ATLC. THIS AND THE PRESENCE OF THE STRONG CLOSED LOW OVER THE NE ATLC SEND WEAK VORTICITY IMPULSES INTO THE TROUGH ALONG 50W..MAINTAINING THAT FEATURE FOR ANOTHER DAY. ON THE SURFACE DAY 5 HIGH PRES WEAKENS SLIGHTLY AND DRIFTS NWD TO 25N RELAXING ELY TRADES JUST A BIT OVER CARIB. RETURN FLOW W OF 90W INCREASES AS RIDGE PRESSES WWD. OTHERWISE WINDS OVER SW ATLC AND TRPL ATLC WATERS MOSTLY LIGHT. WARNINGS... ATLANTIC... AMZ080...TROPICAL STORM WARNING N OF 27N W OF 74W TONIGHT. CARIBBEAN... NONE. GULF OF MEXICO... NONE. FORECASTER RRG