000 AGXX40 KNHC 230018 AAA MIMATS MARINE WEATHER DISCUSSION...AMENDED NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 815 PM EDT TUE JUN 22 2010 AMENDED CARIBBEAN SEA AND TROPICAL N ATLC MARINE WEATHER DISCUSSION FOR GULF OF MEXICO...CARIBBEAN SEA AND TROPICAL N ATLC FROM 07N TO 22N BETWEEN 55W AND 65W...AND SOUTHWEST NORTH ATLC S OF 31N W OF 55W GULF OF MEXICO... HIGH PRES RIDGE OVER GULF STATES MAINTAIN MODERATE TO FRESH E-SE BREEZE THROUGH WESTERN GULF THROUGH SAT. TROPICAL WAVE...NOW ALONG 86W INCREASED WIND AND SEAS OVER STRAITS OF FLORIDA AND SPREAD W OVER SOUTHEASTERN GULF...WEAKENING TONIGHT. EXTREME SE PART OF BASIN MAY BE AFFECTED BY STRENGTHENING TROPICAL WAVE NOW OVER CENTRAL CARIBBEAN APPROACHING NEAR YUCATAN PENINSULA FRI. CARIBBEAN SEA AND TROPICAL N ATLC... OFFICIAL NHC FORECAST NOW CALLS FOR A LOW PROBABILITY OF TROPICAL CYCLONE DEVELOPMENT DURING THE NEXT 48 HOURS WITH THE WAVE CURRENTLY ALONG 73W/74W IN THE CENTRAL CARIBBEAN AS IT HAS BECOME LESS ORGANIZED TODAY. AFTER COORDINATING WITH HURRICANE SPECIALISTS HAVE REMOVED 'POSSIBLE TROPICAL CYCLONE' WORDING FROM OFFSHORE WATERS AND HIGH SEAS FORECASTS WITH TWO CONSECUTIVE SYNOPTIC FORECASTS OF A LOW PROBABILITY. THAT BEING SAID...ENVIRONMENTAL CONDITIONS ARE FORECAST TO BECOME MORE FAVORABLE FOR SLOW DEVELOPMENT BEYOND 48 HOURS AS THE WAVE MOVES INTO THE W-NW CARIBBEAN. LATEST SCATTEROMETER PASS AND SHIP AND BUOY OBS IN THE VICINITY OF THE WAVE INDICATING EASTERLY WINDS OF 20-25 KT NEAR THE WAVE...AND NEAR ANOTHER WAVE NOW ENTERING THE FAR E CARIBBEAN (SEE DISCUSSION BELOW). MEANWHILE SATELLITE IMAGERY INDICATING A BAND OF STRONG CONVECTION THAT IS TRAINING OVER HISPANIOLA AND NOW WESTERN PUERTO RICO AND EXPECT VERY HEAVY RAINFALL AND POSSIBLE FLASH FLOODING AS THIS CONVECTION PERSISTS OVER THE SAME AREA FOR MANY HOURS. -LEWITSKY SECOND TROPICAL WAVE NOW ENTERS EASTERN CARIBBEAN ALONG 60W... FAVORED IN SEVERAL SOLUTIONS TO INTENSIFY...FOLLOW OUR MAIN FEATURED WAVE MENTIONED ABOVE. MOST MODELS SHIFT WAVE NW ACROSS GREATER ANTILLES REACHING WESTERN BAHAMAS BY THE WEEKEND. -WALLY BARNES SW N ATLC... ATLC RIDGE WILL PREVAIL ALONG 30/31N THROUGH FORECAST PERIOD KEEPING MODERATE TO FRESH E TO SE FLOW THROUGH BASIN N OF 25N. S OF 25N FRESH TO STRONG EASTERLIES EXPECTED AS TROPICAL WAVE AND LOW PRES CENTER 1009 MB...POSSIBLE TROPICAL CYCLONE...MOVE W OVER GREATER ANTILLES. SECOND TROPICAL WAVE APPROACHES SE PART OF BASIN WITH INCREASE IN WIND AND SEAS LATE FRI OR SAT. WARNINGS... ATLC... .NONE. CARIBBEAN... .NONE. GULF OF MEXICO... .NONE. FOR ADDITIONAL INFORMATION PLEASE VISIT HTTP://WWW.HURRICANES.GOV/MARINE $$ FORECASTER WALLY BARNES/LEWITSKY