WTPN21 PGTW 140330
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL CYCLONE FORMATION ALERT (INVEST 97W) CANCELLATION//
REF/A/JOINT TYPHOON WRNCEN PEARL HARBOR HI/130321ZJUL2026//
AMPN/REF A IS A TROPICAL CYCLONE FORMATION ALERT.//
RMKS/
1. REMARKS: THIS CANCELS REF A (WTPN21 PGTW 130330). THE AREA OF 
CONVECTION (INVEST 97W) PREVIOUSLY LOCATED 10.8N 136.8E IS NOW LOCATED 
13.9N 133.9E, APPROXIMATELY 361NM NORTHWEST OF YAP. ANIMATED 
MULTISPECTRAL SATELLITE IMAGERY (MSI) DEPICTS A FULLY EXPOSED, 
IRREGULARLY SHAPED, AND VERY BROAD ROTATION. DEEP CONVECTION HAS 
COMPLETELY COLLAPSED, AND THE REMNANT CLOUD DEBRIS CONTINUES TO BE 
PUSHED OFF TO THE WEST DUE TO PERSISTENT MODERATE TO STRONG EASTERLY 
WIND SHEAR. OVER THE PAST 24 HOURS, MULTIPLE DATA SOURCES HAVE PROVIDED 
LITTLE TO NO EVIDENCE OF A CLOSED LOW-LEVEL CIRCULATION CENTER (LLCC), 
AND THE ROTATION SEEN IN THE MSI WAS ALMOST CERTAINLY MID-LEVEL IN 
NATURE. GLOBAL MODELS SHOW A HIGHLY ELONGATED ROTATION CURRENTLY, WHICH 
OPEN UP INTO A SOUTHWEST-NORTHEAST ORIENTED TROUGH IN THE NEAR-TERM. 
ENSEMBLE GUIDANCE CONTINUES TO DEPICT THE SYSTEM RAPIDLY TRANSLATING 
NORTHEASTWARD WITH ELEVATED WINDS; HOWEVER, THESE WINDS ARE EXPECTED TO 
BE LINEAR IN NATURE AND NOT ASSOCIATED WITH A DISCRETE CIRCULATION 
CENTER. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 15-20 KNOTS. 
MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1005 MB. IN VIEW OF 
THE UNFAVORABLE FORECAST FOR THIS SYSTEM, 97W IS NO LONGER EXPECTED TO 
DEVELOP INTO A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS.    
MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 23 TO 28 KNOTS.
MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1005 MB. THE
POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE
WITHIN THE NEXT 24 HOURS IS LOW.//
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