** WTSR20 WSSS 021800 *** NO STORM WARNING= ** WTPN21 PHNC 030300 *** MSGID/GENADMIN/NAVPACMETOCCEN PEARL HARBOR HI/JTWC// SUBJ/TROPICAL CYCLONE FORMATION ALERT/030251ZJUL2005// RMKS/ 1. FORMATION OF A SIGNIFICANT TROPICAL CYCLONE IS POSSIBLE WITHIN 125 NM EITHER SIDE OF A LINE FROM 13.0N 98.1W TO 15.2N 102.1W WITHIN THE NEXT 12 TO 24 HOURS. AVAILABLE DATA DOES NOT JUSTIFY ISSUANCE OF NUM- BERED TROPICAL CYCLONE WARNINGS AT THIS TIME. WINDS IN THE AREA ARE ESTIMATED TO BE 20 TO 25 KNOTS. METSAT IMAGERY AT 022345Z INDICATES THAT A CIRCULATION CENTER IS LOCATED NEAR 13.4N 98.8W. THE SYSTEM IS MOVING WEST-NORTHWESTWARD AT 06 KNOTS. 2. REMARKS: THE AREA OF CONVECTION PREVIOUSLY LOCATED NEAR 13.1N 98.3W IS NOW LOCATED NEAR 13.4N 98.8W, APPROXIMATELY 220 NM SSE OF ACAPULCO, MEXICO. RECENT ANIMATED MULTISPECTRAL IMAGERY REVEALS AN INCREASE IN CONVECTION ASSOCIATED WITH A DEVELOPING LOW LEVEL CIRCU- LATION CENTER (LLCC). UPPER LEVEL ANALYSIS INDICATES THE LLCC IS IN AN ENVIRONMENT OF LOW VERTICAL WIND SHEAR AND INCREASING 850 MB VOR- TICITY. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 20 TO 25 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1007 MB. THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS IS GOOD. 3. THIS ALERT WILL BE REISSUED, UPGRADED TO WARNING OR CANCELLED BY 040300Z.// ** WTNT80 EGRR 030508 *** MET OFFICE TROPICAL CYCLONE GUIDANCE FOR NORTH-EAST PACIFIC AND ATLANTIC GLOBAL MODEL DATA TIME 00UTC 03.07.2005 TROPICAL STORM ANALYSED IN THE MODEL AT POSITION : 12.7N 96.9W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 03.07.2005 12.7N 96.9W WEAK 12UTC 03.07.2005 13.7N 97.3W WEAK LITTLE CHANGE 00UTC 04.07.2005 14.4N 98.0W WEAK LITTLE CHANGE 12UTC 04.07.2005 14.0N 99.0W WEAK LITTLE CHANGE 00UTC 05.07.2005 14.5N 100.4W WEAK WEAKENING SLIGHTLY 12UTC 05.07.2005 BELOW TROPICAL STORM STRENGTH THIS INFORMATION IS PROVIDED AS GUIDANCE FOR TROPICAL CYCLONE RSMCS. IT REQUIRES INTERPRETATION BY TROPICAL CYCLONE SPECIALISTS AND SHOULD NOT BE CONSIDERED AS A FINAL PRODUCT MET OFFICE, EXETER, UK TOO 030508