WTPN31 PGTW 100300 
MSGID/GENADMIN/NAVMARFCSTCEN PEARL HARBOR HI/JTWC//
SUBJ/TROPICAL CYCLONE WARNING//  
RMKS/   
1. TROPICAL DEPRESSION 24W (MAYSAK) WARNING NR 014    
   01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
    ---
   WARNING POSITION:
   100000Z --- NEAR 15.6N 116.5E
     MOVEMENT PAST SIX HOURS - 160 DEGREES AT 06 KTS
     POSITION ACCURATE TO WITHIN 060 NM
     POSITION BASED ON CENTER LOCATED BY SATELLITE
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
   REPEAT POSIT: 15.6N 116.5E
    ---
   FORECASTS:
   12 HRS, VALID AT:
   101200Z --- 14.5N 116.9E
   MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
   VECTOR TO 24 HR POSIT: 185 DEG/ 08 KTS
    ---
   24 HRS, VALID AT:
   110000Z --- 12.9N 116.8E
   MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
    ---
REMARKS:
100300Z POSITION NEAR 15.3N 116.6E.
TROPICAL DEPRESSION (TD) 24W (MAYSAK), LOCATED APPROXIMATELY 280
NM WEST-NORTHWEST OF MANILA, PHILIPPINES, HAS TRACKED SOUTH-SOUTH-
EASTWARD AT 06 KNOTS OVER THE LAST SIX HOURS. ANIMATED MULTI-SPECTRAL
IMAGERY AND A 092213Z 37H WINDSAT IMAGE REVEAL AN ELONGATED AND
WEAKLY DEFINED LOW LEVEL CIRCULATION CENTER (LLCC) EMBEDDED ALONG
THE TIGHTLY CURVED AXIS OF A SOUTHWEST TO NORTHEAST ORIENTED TROUGH
EXTENDING FROM THE COAST OF VIETNAM THROUGH THE LUZON STRAIT. THIS
FEATURE IS CONFIRMED BY A 092215Z WINDSAT SCATTEROMETRY PASS WHICH 
SHOWS STRONG NORTHEASTERLY GRADIENT FLOW POLEWARD OF THE TROUGH AXIS 
AND WEAKER SOUTHWESTERLY FLOW ON THE EQUATORWARD SIDE. THIS REGION IS 
ALSO EXPERIENCING EXTREME VERTICAL WIND SHEAR ASSOCIATED WITH THE MAJOR 
SHORTWAVE TROUGH EXITING CHINA WHICH WILL CONTINUE TO MOVE EAST AND 
FURTHER DEGRADE THE SYSTEM OVER THE NEXT 24 HOURS. THUS, DESPITE THE 
STRONG WINDS AND TIGHT TROUGHING WHICH ARE EXPECTED TO PERSIST IN THE
REGION FOR THE NEXT SEVERAL DAYS, CONDITIONS ARE NO LONGER FAVORABLE 
FOR FURTHER DEVELOPMENT OF TD 24W. THIS IS THE FINAL WARNING ON THIS 
SYSTEM BY THE JOINT TYPHOON WARNING CENTER (NAVMARFCSTCEN). THE SYSTEM
WILL BE CLOSELY MONITORED FOR SIGNS OF REGENERATION. MAXIMUM SIGNIFICANT
WAVE HEIGHT AT 100000Z IS 15 FEET.//
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