WTPN21 PGTW 101400
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL CYCLONE FORMATION ALERT CANCELLATION//
REF/A/JOINT TYPHOON WRNCEN PEARL HARBOR HI/091351ZAUG22//
AMPN/REF A IS A TROPICAL CYCLONE FORMATION ALERT//
RMKS/
1. REMARKS: THIS CANCELS REF A (WTPN21 PGTW 091400). THE AREA OF 
CONVECTION (INVEST 97W) PREVIOUSLY LOCATED NEAR 19.9N 110.9E IS NOW 
LOCATED NEAR 20.7N 108.6E, APPROXIMATELY 155 NM EAST OF HANOI, VIETNAM. 
THE SYSTEM IS CURRENTLY CLASSIFIED AS A MONSOON DEPRESSION, GENERALLY 
CHARACTERIZED AS A LARGE CYCLONIC CIRCULATION, GREATER THAN 600NM 
DIAMETER, WITH EXTENSIVE GALE-FORCE WINDS OVER THE SOUTHEASTERN 
PERIPHERY AND A WEAK CORE OF LIGHT WINDS. ANIMATED ENHANCED INFRARED 
SATELLITE IMAGERY, A 100902Z SSMIS 91GHZ MICROWAVE IMAGE AND ANIMATED 
RADAR IMAGERY INDICATE DISORGANIZED CONVECTION NEAR THE SYSTEM'S BROAD 
CENTER WITH EXTENSIVE DEEP CONVECTIVE BANDING DISPLACED 200-300NM TO 
THE EAST. SURFACE OBSERVATIONS, INCLUDING BACH LONGVI, 60NM SOUTHWEST 
OF THE CURRENT POSITION, INDICATE 5-15 KNOT WINDS. UPPER-LEVEL 
CONDITIONS HAVE DEGRADED WITH MODERATE TO HIGH (20-30 KNOTS) VERTICAL 
WIND SHEAR OFFSET BY MODERATE EQUATORWARD OUTFLOW. INTERACTION WITH 
LAND IS ALSO HINDERING DEVELOPMENT. GLOBAL MODELS INDICATE THE MONSOON 
DEPRESSION WILL TRACK WESTWARD TO WEST-NORTHWESTWARD MAKING LANDFALL 
OVER NORTHERN VIETNAM IN THE NEXT 12 HOURS WITH LITTLE INTENSIFICATION. 
FOR HAZARDS AND WARNINGS, REFERENCE THE FLEET WEATHER CENTER SAN DIEGO 
HIGH WINDS AND SEAS PRODUCT OR REFER TO LOCAL WMO DESIGNATED FORECAST 
AUTHORITY. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 20 TO 25 
KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 998 MB. THE 
POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN 
THE NEXT 24 HOURS IS DOWNGRADED TO MEDIUM.//
NNNN