000 AGXX40 KNHC 060543 MIMATS MARINE WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 130 AM EDT SUN NOV 06 2005 MARINE WEATHER DISCUSSION FOR GULF OF MEXICO...CARIBBEAN SEA AND SOUTHWEST NORTH ATLC S OF 31N W OF 55W. BROAD MID LEVEL RIDGE COVERS ENTIRE REGION TONIGHT AND DAY 1. STRONG SHORTWAVE IN WESTERLIES MOVING THROUGH MIDWEST WILL HAVE LITTLE AFFECT ON OUR REGION. ATLC RIDGE WITH AXIS JUST N OF 30N EXTENDS ACROSS ATLC TO N GULF COAST. ELY TRADES OF 20 KT OVER MOST OF ATLC E OF 60W AND OVER CARIB S OF 18N. GULF WINDS MOSTLY LIGHT DAY 1. SOME WEAKNESS IN PRESSURE FIELD DAY 2 OVER MID ATLC FROM A DEEP VORTEX WELL NE OF AREA. TROPICAL MID LEVEL RIDGE SHIFTS WWD TO 24N80W WITH SECONDARY RIDGE OVER E ATLC NEAR 25N35W. TAIL END OF A COLD FRONT MOVES OFF THE SE COAST DAY 2 TO NEAR 70W AND GRADUALLY DISSIPATES. POLAR HIGH FOLLOWING WILL SHIFT WINDS TO NE W OF 70W. OTHERWISE ATLC RIDGE WEAKENS SLIGHTLY DAY 2 WITH TRADES DECREASING OVER ATLC BUT ABOUT THE SAME OVER CARIB. GULF WINDS PICK UP A BIT S OF 25N. OUTLOOK PERIOD... DEEP VORTEX SETTING UP OVER CANADIAN MARITIMES WILL LOWER MID LEVEL HEIGHTS OVER REGION N OF 20N BETWEEN 40W AND 70W DAY 3. TROPICAL MID LEVEL RIDGE MOVES TO GULF DAY 3 PHASING IN WITH BROAD UPPER RIDGE OVER CENTRAL US. WEAKNESS IN PRESSURE FIELD OVER MID OCEAN DAY 3 SEPARATES ATLC RIDGE FROM POLAR HIGH NEAR SE COAST. LITTLE CHANGE TO OVERALL WINDS EXCEPT ATLC WINDS IN WEAKNESS AREA MOSTLY LIGHT. LONGWAVE UPPER TROUGH SETS UP DAY 4 WITH AXIS ALONG 60W. MID LEVEL RIDGING CLOSES OFF OVER NE ATLC AND OVER GULF OF MEXICO. BROAD INVERTED TROUGH AT SURFACE ALONG 55W IN CONJUNCTION WITH WEAKNESS ALOFT SEPARATES ATLC RIDGE FROM MODIFIED POLAR HIGH JUST OFF SE COAST. GULF WINDS INCREASE SOME TO 20 KT WHILE ERN CARIB WINDS DECREASE SLIGHTLY. MID LEVEL TROUGHING PERSISTS OVER MID OCEAN DAY 5 ALONG 60W BUT SUPPORT FURTHER N WEAKENS. CLOSED OFF MID LEVEL RIDGES OVER NE ATLC AND GULF REMAIN IN PLACE. INVERTED TROUGH AT SURFACE SHIFTS E TO 50W DAY 5 WHILE ATLC RIDGE WEAKENS SOME E OF 40W. POLAR HIGH OFF SE COAST WILL MAINTAIN NE WINDS OF 20 KT W OF 60W INTO GULF AND NW CARIB DAY 5. WARNINGS... ATLANTIC... NONE. CARIBBEAN... NONE. GULF OF MEXICO... NONE. FORECASTER RRG