000 AGXX40 KNHC 250510 MIMATS MARINE WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 130 AM EDT MON JUL 25 2005 MARINE WEATHER DISCUSSION FOR GULF OF MEXICO...CARIBBEAN SEA AND SOUTHWEST NORTH ATLC S OF 31N W OF 55W. T.S. FRANKLIN MOVING ERRATICALLY PAST FEW HRS EXPECTED TO RESUME A ENE TRACK LATER TODAY. LARGE UPPER RIDGE OVER OHIO VALLEY MOVING E APPARENTLY HAVING SOME INFLUENCE ON FRANKLIN. MID LEVEL ATLC RIDGE ANCHORED NEAR 27N40W EXTENDS WSW TO NEAR 20N65W DAY 1. TROUGH FROM FRANKLIN SW OVER CENTRAL BAHAMAS. WEAK BACKDOOR FRONT OVER CENTRAL FL. MODERATE TO STRONG TRADES OVER CARIB OTHERWISE WINDS NO PROBLEM EXCEPT FOR N OF 28N E OF 73W ASSOCIATED WITH FRANKLIN. ERN US MID LEVEL RIDGE MOVES SLOWLY E AND SE DAY 2 PUSHING FRANKLIN ENE. MID LEVEL ATLC RIDGE SHIFTS WWD TO NEAR 27N44W. LITTLE CHANGE TO WINDS AND SEAS DAY 2. GULF REMAINS QUIET. OUTLOOK PERIOD... MID LEVEL ATLC RIDGE EXTENDS WWD TO 70W DAY 3 WHILE ERN US RIDGE EXTENDS SW ACROSS NE GULF. INVERTED UPPER TROUGH OVER BAHAMAS. SURFACE ATLC RIDGE AXIS ALONG 26N WILL KEEP WINDS N OF 20N IN LIGHT CATAGORY. CARIB WINDS EXPECTED TO REMAIN BRISK WITH LOWER PRESSURE OVER PANAMA. GULF WINDS LIGHT. MID LEVEL ATLC RIDGE CONTINUES TO SHIFT WWD TO NEAR 25N65W DAY 4. MID LEVEL RIDGE CONTINUES OVER GULF WHILE INVERTED MID LEVEL TROUGH SHIFTS WWD TO WRN BAHAMAS AND S FL DAY 4. SURFACE RIDGE CONTINUES ALONG 26N DAY 4 BUT NOT AS STRONG AS EXPECTED SINCE MID LEVEL ANTICYCLONE FURTHER W. ONLY WIND PROBLEM OVER CARIB WHERE TRADES CONTINUE IN 20 TO 25 KT RANGE. GULF QUIET. GFS MODEL CONTINUES TO SHOW MID LEVEL ATLC RIDGE WORKING IT'S WAY WWD TO NEAR SE BAHAMAS DAY 5. INVERTED UPPER TROUGH DRIFTS NW TO CENTRAL FL WITH UPPER RIDGE OVER NW GULF. GFS SHOWS SURFACE RIDGE ACTUALLY WEAKENING DAY 5 BUT STILL ALONG 27N. GFS HINTS AT SOME SORT OF TROPICAL DEVELOPMENT ERN CARIB AND FURTHER E DAY 5 OTHERWISE CARIB TRADES REMAIN 20 TO 25 KT AND GULF REMAINS QUIET. WARNINGS...SUBJECT TO CHANGE BASED ON LATEST NHC ADVISORY... ATLANTIC... T.S. WARNING N OF 30N E OF 73W...AMZ080. CARIBBEAN... NONE. GULF OF MEXICO... T.S. WARNING 20.5N TO 23.5N W OF 96W...GMZ082 TIL 12Z JUL 25. FORECASTER RRG