000 AGXX40 KNHC 310509 MIMATS MARINE WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 130 AM MON JUL 31 2006 MARINE WEATHER DISCUSSION FOR GULF OF MEXICO...CARIBBEAN SEA AND SOUTHWEST NORTH ATLC S OF 31N W OF 55W. THE RELENTLESS WESTERLIES ARE MAKING ENRODES INTO OUR REGION S OF 30N TONIGHT. ONE SHORTWAVE TROUGH IS MOVING OFF THE SE COAST WHILE ANOTHER MOVES EWD ALONG 50W. A LARGE BLOCKING MID LEVEL RIDGE LIES OVER THE S CENTRAL US WITH A WEAKER EXTENSION E OF THE BAHAMAS NEAR 25N65W. ON THE SURFACE TONIGHT A 1022 MB HIGH WAS LOCATED NEAR 26N56W SLIGHTLY HIGHER THAN GFS MODEL 1018 MB. TROPICAL WAVES WERE LOCATED ALONG 55W AND 80W MOVING W ABOUT 15 KT. WAVES APPEAR WEAKER THAN LAST NIGHT. LATER DAY 1 A LONG WAVE TROUGH IN THE WESTERLIES EXTENDS S TO 30N WHILE BLOCKING RIDGES HOLD FIRM OVER THE SE US WITH A WEAKER CELL NEAR 25N62W. A SHORTWAVE TROUGH MOVES TO 72W AND WILL BRUSH THE NRN BORDER OF THE AREA. ON THE SURFACE DAY 1 THE ATLC RIDGE CENTER 1021 MB WILL BE NEAR 24N55W WITH A WEAK AXIS WNW ACROSS CENTRAL FL INTO THE N CENTRAL GULF. MODERATE TRADES CONFINED TO THE E CENTRAL CARIB AND SE BAHAMAS. SW WINDS ALONG 30N PICK UP JUST A BIT TO NEAR 20 KT. FOR DAY 2..THE FIRST DAY OF AUGUST..THE WESTERLIES DRIVE INTO THE REGION ALONG 50W WHERE A WEAKNESS IN THE PRESSURE FIELD EXISTS BETWEEN 40W AND 60W. THE BLOCKING MID LEVEL RIDGE HOLDS OVER THE SE US WHILE TROUGHING DEVELOPS OVER THE BAHAMAS. ON THE SURFACE THE ATLC RIDGE LIES ALONG 25N WITH A CENTER 1022 MB NEAR 25N60W. THE RIDGE AXIS EXTENDS WNW ACROSS CENTRAL FL INTO THE NRN GULF. WINDS OVER THE WRN GULF INCREASE SOME TO 20 KT OTHERWISE WINDS REMAIN ABOUT THE SAME IN THE CARIB AND SE BAHAMS. OUTLOOK PERIOD... THE LARGE TROUGH IN THE WESTERLIES BEGINS TO WEAKEN AND SHIFT EWD OF 50W DAY 3. THE BLOCKING MID LEVEL RIDGE WILL COVER THE SE US AND EXTEND TO NEAR 25N65W. THE TROUGH OVER THE BAHAMAS MOVES SLOWLY NW TOWARD FL. ON THE SURFACE THE ATLC RIDGE CENTER 1022 MB WILL BE NEAR 25N60W WITH A WEAK AXIS EXTENDING WNW TO CENTRAL FL AND THE NRN GULF. WINDS OVER THE BAHAMAS DECREASE DAY 3 BUT REMAIN MODERATE OVER THE CENTRAL CARIB. SE WINDS TO 15 KT WILL REMAIN OVER THE GULF W OF 90W. FOR DAY 4 THE BLOCKING MID LEVEL RIDGE BEGINS TO MOVE EWD OFF THE CAROLINA COAST AND INTO THE MID ATLC NEAR 30N60W. THE MID LEVEL TROUGH MOVES WNW TO THE NE GULF DAY 4. ON THE SURFACE A 1021 MB ATLC RIDGE CENTER WILL BE NEAR 26N62W WITH IT'S AXIS EXTENDING WWD ALONG 27N-28N ACROSS FL TO THE N CENTRAL GULF. CARIB WINDS DECREASE SLIGHTLY WHILE GULF WINDS REMAIN ABOUT THE SAME. DAY 5 FINDS THE BLOCKING MID LEVEL RIDGE CENTERED OVER THE N CAR COAST AND EXTENDING SE TO 23N50W. A WEAKNESS IN THE PRESSURE FIELD SHIFTS EWD TO BETWEEN 30W AND 50W. A WEAK INVERTED TROUGH AT MID LEVELS MOVES TO THE N GULF COAST WHILE ANOTHER MOVES TO NEAR PUERTO RICO. ON THE SURFACE THE ATLC RIDGE REMAINS WEAK WITH A 1020 MB CENTER NEAR 28N68W AND IT'S AXIS EXTENDING WWD ALONG 28N TO THE N CENTRAL GULF. LITTLE CHANGE TO OVERALL WINDS FROM DAY 4. GFS MODEL PICKS UP ON A TROPICAL LOW 1009 MB NEAR 12N48W MOVING W. .WARNINGS... ATLC...NONE. CARIBBEAN...NONE. GULF OF MEXICO...NONE. FORECASTER RRG 000 AGXX40 KNHC 310509 MIMATS MARINE WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 130 AM MON JUL 31 2006 MARINE WEATHER DISCUSSION FOR GULF OF MEXICO...CARIBBEAN SEA AND SOUTHWEST NORTH ATLC S OF 31N W OF 55W. THE RELENTLESS WESTERLIES ARE MAKING ENRODES INTO OUR REGION S OF 30N TONIGHT. ONE SHORTWAVE TROUGH IS MOVING OFF THE SE COAST WHILE ANOTHER MOVES EWD ALONG 50W. A LARGE BLOCKING MID LEVEL RIDGE LIES OVER THE S CENTRAL US WITH A WEAKER EXTENSION E OF THE BAHAMAS NEAR 25N65W. ON THE SURFACE TONIGHT A 1022 MB HIGH WAS LOCATED NEAR 26N56W SLIGHTLY HIGHER THAN GFS MODEL 1018 MB. TROPICAL WAVES WERE LOCATED ALONG 55W AND 80W MOVING W ABOUT 15 KT. WAVES APPEAR WEAKER THAN LAST NIGHT. LATER DAY 1 A LONG WAVE TROUGH IN THE WESTERLIES EXTENDS S TO 30N WHILE BLOCKING RIDGES HOLD FIRM OVER THE SE US WITH A WEAKER CELL NEAR 25N62W. A SHORTWAVE TROUGH MOVES TO 72W AND WILL BRUSH THE NRN BORDER OF THE AREA. ON THE SURFACE DAY 1 THE ATLC RIDGE CENTER 1021 MB WILL BE NEAR 24N55W WITH A WEAK AXIS WNW ACROSS CENTRAL FL INTO THE N CENTRAL GULF. MODERATE TRADES CONFINED TO THE E CENTRAL CARIB AND SE BAHAMAS. SW WINDS ALONG 30N PICK UP JUST A BIT TO NEAR 20 KT. FOR DAY 2..THE FIRST DAY OF AUGUST..THE WESTERLIES DRIVE INTO THE REGION ALONG 50W WHERE A WEAKNESS IN THE PRESSURE FIELD EXISTS BETWEEN 40W AND 60W. THE BLOCKING MID LEVEL RIDGE HOLDS OVER THE SE US WHILE TROUGHING DEVELOPS OVER THE BAHAMAS. ON THE SURFACE THE ATLC RIDGE LIES ALONG 25N WITH A CENTER 1022 MB NEAR 25N60W. THE RIDGE AXIS EXTENDS WNW ACROSS CENTRAL FL INTO THE NRN GULF. WINDS OVER THE WRN GULF INCREASE SOME TO 20 KT OTHERWISE WINDS REMAIN ABOUT THE SAME IN THE CARIB AND SE BAHAMS. OUTLOOK PERIOD... THE LARGE TROUGH IN THE WESTERLIES BEGINS TO WEAKEN AND SHIFT EWD OF 50W DAY 3. THE BLOCKING MID LEVEL RIDGE WILL COVER THE SE US AND EXTEND TO NEAR 25N65W. THE TROUGH OVER THE BAHAMAS MOVES SLOWLY NW TOWARD FL. ON THE SURFACE THE ATLC RIDGE CENTER 1022 MB WILL BE NEAR 25N60W WITH A WEAK AXIS EXTENDING WNW TO CENTRAL FL AND THE NRN GULF. WINDS OVER THE BAHAMAS DECREASE DAY 3 BUT REMAIN MODERATE OVER THE CENTRAL CARIB. SE WINDS TO 15 KT WILL REMAIN OVER THE GULF W OF 90W. FOR DAY 4 THE BLOCKING MID LEVEL RIDGE BEGINS TO MOVE EWD OFF THE CAROLINA COAST AND INTO THE MID ATLC NEAR 30N60W. THE MID LEVEL TROUGH MOVES WNW TO THE NE GULF DAY 4. ON THE SURFACE A 1021 MB ATLC RIDGE CENTER WILL BE NEAR 26N62W WITH IT'S AXIS EXTENDING WWD ALONG 27N-28N ACROSS FL TO THE N CENTRAL GULF. CARIB WINDS DECREASE SLIGHTLY WHILE GULF WINDS REMAIN ABOUT THE SAME. DAY 5 FINDS THE BLOCKING MID LEVEL RIDGE CENTERED OVER THE N CAR COAST AND EXTENDING SE TO 23N50W. A WEAKNESS IN THE PRESSURE FIELD SHIFTS EWD TO BETWEEN 30W AND 50W. A WEAK INVERTED TROUGH AT MID LEVELS MOVES TO THE N GULF COAST WHILE ANOTHER MOVES TO NEAR PUERTO RICO. ON THE SURFACE THE ATLC RIDGE REMAINS WEAK WITH A 1020 MB CENTER NEAR 28N68W AND IT'S AXIS EXTENDING WWD ALONG 28N TO THE N CENTRAL GULF. LITTLE CHANGE TO OVERALL WINDS FROM DAY 4. GFS MODEL PICKS UP ON A TROPICAL LOW 1009 MB NEAR 12N48W MOVING W. .WARNINGS... ATLC...NONE. CARIBBEAN...NONE. GULF OF MEXICO...NONE. FORECASTER RRG