WTIO21 PGTW 181800
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL CYCLONE FORMATION ALERT CANCELLATION//
REF/A/JOINT TYPHOON WRNCEN PEARL HARBOR HI/172021ZNOV21//
AMPN/REF A IS A TROPICAL CYCLONE FORMATION ALERT//
RMKS/
1. REMARKS: THE AREA OF CONVECTION (INVEST 92B) PREVIOUSLY LOCATED 
NEAR 10.6N 83.5E IS NOW LOCATED NEAR 12.3N 80.4E, APPROXIMATELY 45 
NM SOUTH OF CHENNAI, INDIA. ANIMATED ENHANCED INFRARED SATELLITE 
IMAGERY AND A 181056Z SSMIS 91GHZ MICROWAVE IMAGE DEPICT A FULLY-
EXPOSED LOW-LEVEL CIRCULATION (LLC) WITH DEEP CONVECTION SHEARED 
WEST OF THE LLC DUE TO PERSISTENT MODERATE TO STRONG (20-25 KNOTS) 
EASTERLY VERTICAL WIND SHEAR. SURFACE OBSERVATIONS FROM CHENNAI 
INDICATE EAST-NORTHEASTERLY SUSTAINED WINDS AT 10-15 KNOTS WITH SLP 
NEAR 1003MB. INVEST 92B IS MAKING LANDFALL AND GLOBAL MODELS 
INDICATE THE SYSTEM CENTER WILL TRACK OVER LAND WITHIN THE NEXT SIX 
HOURS AND CONTINUE TRACKING WEST-NORTHWESTWARD WITH STEADY 
WEAKENING. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 20 TO 25 
KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1002 MB. 
THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE 
WITHIN THE NEXT 24 HOURS IS DOWNGRADED TO LOW. THIS CANCELS REF A 
(WTIO21 PGTW 172030).//
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