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A tropical cyclone formation alert was issued this morning, signaling that 94L is very likely to become a depression or storm later today,. SUBJ/TROPICAL CYCLONE FORMATION ALERT// RMKS/1. FORMATION OF A SIGNIFICANT TROPICAL CYCLONE IS POSSIBLE WITHIN 100 NM EITHER SIDE OF A LINE FROM 9.2N 33.3W TO 12.6N 38.4W WITHIN THE NEXT 24 HOURS. AVAILABLE DATA DOES NOT JUSTIFY ISSUANCE OF NUMBERED TROPICAL CYCLONE WARNINGS AT THIS TIME. WINDS IN THE AREA ARE ESTIMATED TO BE 30 TO 35 KNOTS. METSAT IMAGERY AT 040400Z INDICATES THAT A CIRCULATION CENTER IS LOCATED NEAR 9.2N 33.3W. THE SYSTEM IS MOVING NORTHWESTWARD AT 15 KNOTS. 2. REMARKS:AN AREA OF LOW PRESSURE ASSOCIATED WITH A TROPICAL WAVE IS LOCATED SEVERAL HUNDRED MILES SOUTHWEST OF CABO VERDE ISLANDS. SHOWERS AND THUNDERSTORMS PRODUCED BY THE SYSTEM CONTINUE TO BECOME BETTER ORGANIZED AND SATELLITE DERIVED WINDS INDICATED THAT IT HAS A WELL DEFINED SURFACE CIRCULATION. SATELLITE DATA ALSO SHOW THAT THE LOW PRESSURE SYSTEM IS PRODUCING WINDS OF 30 TO 35KTS. ENVIRONMENTAL CONDITIONS ARE CONDUCIVE FOR ADDITIONAL DEVELOPMENT AND A TROPICAL CYCLONE COULD FORM DURING THE NEXT 24 HOURS AS IT MOVES NORTHWESTWARD AT 10 TO 15 KTS. 3. THIS ALERT WILL BE REISSUED, UPGRADED TO WARNING OR CANCELLED BY 050700Z.// |