000 AGXX40 KNHC 140536 MIMATS MARINE WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 130 AM EDT THU JUN 14 2007 MARINE WEATHER DISCUSSION FOR GULF OF MEXICO...CARIBBEAN SEA AND SOUTHWEST NORTH ATLC S OF 31N W OF 55W. A PERSISTENT MID LEVEL LOW WAS STILL LOCATED OFF THE NE COAST WITH A TROUGH EXTENDING SW TO FL. A MID LEVEL RIDGE ALONG 95W EXTENDS N TO THE GREATLAKES WHILE A MID LEVEL RIDGE COVERS THE TRPL ATLC S OF 30N E OF 65W. ON THE SURFACE TONIGHT A WEAK TRPL WAVE WAS APPROACHING THE WINDWARDS. THE ATLC RIDGE WAS ANCHORED BY A 1023 MB HIGH NEAR 28N37W WITH AN AXIS TO 60W. WINDS TO 20 KT WERE PREDOMINATELY S OF 18N E OF 70W AND LIGHT ELSEWHERE. LATER DAY 1 LITTLE OVERALL CHANGE TO THE LARGE SCALE FEATURES AT MID LEVELS. WEAK SHORTWAVE TROUGHS WILL CONTINUE TO ROTATE ABOUT THE LARGE TROUGH OVER THE SW ATLC THEN SLIDE NE OVER THE ATLC RIDGE. ON THE SURFACE LATER DAY 1 WEAK LOW PRES CENTERS WILL MOVE NE FROM NEAR THE BAHAMAS WITH SLY WINDS TO 20 TO 25 KT ON THEIR SE SIDE. THE ATLC RIDGE WILL REMAIN IN PLACE AT ABOUT THE SAME STRENGTH. GULF WINDS WILL REMAIN LIGHT. FOR DAY 2 A MID LEVEL LOW WILL REMAIN OVER THE MID ATLC COAST WHICH WILL CONTINUE TO INFLUENCE OUR REGION. A WEAK SHORTWAVE OVER TX WILL MOVE TOWARD THE NW GULF. ON THE SURFACE DAY 2 A WEAK FRONTAL TROUGH NEAR 31N65W TO 24N70W WITH WINDS TO 20 KT ON IT'S SE SIDE. OTHERWISE MODERATE TRADES OVER THE CARIB AND ATLC S OF 16N. GULF WINDS REMAIN LIGHT. OUTLOOK PERIOD... FOR DAY 3 WHILE A PERSISTENT TROUGH HANGS ON OVER THE SE CONUS THERE ARE SIGNS OF CHANGE COMING AS A MID LEVEL RIDGE BUILDS OVER THE GREATLAKES. ON THE SURFACE DAY 3 WEAK TROUGHING DEVELOPS OVER THE SE GULF WITH WINDS OVER THE N CENTRAL CARIB INCREASING A BIT TO 20 KT. GULF WINDS REMAIN LIGHT. THE ATLC RIDGE CENTER CHANGES LITTLE IN STRENGTH BUT THE AXIS SHIFTS TO 24N KEEPING WINDS OVER THE ERN CARIB IN THE 20 TO 25 KT RANGE. FOR DAY 4 FINALLY THE STUBBORN MID LEVEL TROUGH OPENS UP AND BEGINS MOVING E TO 72W. MID LEVEL HIGH PRES BUILDS OVER THE ERN CONUS. MID OCEAN RIDGING HOLDS FIRM WITH A FLAT RIDGE S OF 28N WWD ACROSS THE GULF. ON THE SURFACE DAY 4 A WEAK LOW SPINS OFF THE TROUGH OVER THE SE GULF AND MOVES RAPIDLY NE. THE ATLC RIDGE WEAKENS SOME BUT REMAINS ALONG 25N E OF 75W. CARIB WINDS REMAIN MODERATE MAINLY E OF 80W WHILE GULF WINDS REMAIN LIGHT. FOR DAY 5 SO LONG TO THAT PEST OF A TROUGH THAT HUNG AROUND THE SE CONUS FOR TWO WEEKS. A MID LEVEL RIDGE MOVES INTO THE AREA BUT MAY ALSO PROVE TRANSIENT WITH THE NRN BRANCH OF THE WESTERLIES DIVING INTO THE PLAINS. ON THE SURFACE DAY 5 ANOTHER IN A SERIES OF LOW CENTERS EMERGES FROM THE NRN BAHAMAS AND HEADS NE WITH WINDS TO 20 KT ON IT'S E SIDE. OTHERWISE LITTLE CHANGE OVER THE CARIB. WRN GULF WINDS INCREASE SLIGHTLY TO 15 KT WHILE TRPL ATLC WINDS REMAIN 15 TO 20 KT S OF 18N. WARNINGS... ATLANTIC...NONE. CARIBBEAN...NONE. GULF OF MEXICO...NONE. FORECASTER RRG