WTPN31 PGTW 142100
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL CYCLONE WARNING//
RMKS/
1. TROPICAL DEPRESSION 03W (THREE) WARNING NR 009    
   01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
   WIND RADII VALID OVER OPEN WATER ONLY
    ---
   WARNING POSITION:
   141800Z --- NEAR 8.4N 121.7E
     MOVEMENT PAST SIX HOURS - 285 DEGREES AT 09 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: 8.4N 121.7E
    ---
   FORECASTS:
   12 HRS, VALID AT:
   150600Z --- 9.2N 118.9E
   MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
   VECTOR TO 24 HR POSIT: 290 DEG/ 13 KTS
    ---
   24 HRS, VALID AT:
   151800Z --- 10.1N 116.4E
   MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
    ---
REMARKS:
142100Z POSITION NEAR 8.6N 121.0E.
14MAY21. TROPICAL DEPRESSION (TD) 03W (THREE), LOCATED APPROXIMATELY
374 NM SOUTH OF MANILA, PHILIPPINES, HAS TRACKED WEST-NORTHWESTWARD 
AT 09 KNOTS OVER THE PAST SIX HOURS. ANIMATED ENHANCED INFRARED 
SATELLITE IMAGERY DEPICTS WEAK, DISORGANIZED CONVECTION OVER A 
POORLY ORGANIZED LOW-LEVEL CIRCULATION. ENVIRONMENTAL ANALYSIS 
INDICATES MARGINAL CONDITIONS WITH MODERATE (20 KNOTS) WESTERLY 
VERTICAL WIND SHEAR AND WEAK OUTFLOW. ANIMATED WATER VAPOR IMAGERY 
REVEALS SUBSIDENCE ASSOCIATED WITH AN UPPER-LEVEL TROUGH POSITIONED 
OVER THE CENTRAL PHILIPPINES EXTENDING SOUTHWESTWARD NEAR PALAWAN 
ISLAND. TD 03W IS TRACKING WEST-NORTHWESTWARD ALONG THE SOUTHERN 
PERIPHERY OF A LOW- TO MID-LEVEL SUBTROPICAL RIDGE (STR) ENTRENCHED 
TO THE NORTH. TD 03W IS FORECAST TO TRACK WEST-NORTHWESTWARD THROUGH 
THE FORECAST PERIOD UNDER THE STEERING INFLUENCE OF THE STR 
POSITIONED TO THE NORTH. NUMERICAL MODEL GUIDANCE REMAINS IN GOOD 
AGREEMENT. TD 03W WILL DISSIPATE BY TAU 12 DUE TO INCREASING VWS (20-
25 KNOTS) AND UPPER-LEVEL CONVERGENCE ASSOCIATED WITH THE 
AFOREMENTIONED UPPER-LEVEL TROUGH. THIS IS THE FINAL WARNING ON THIS 
SYSTEM BY THE JOINT TYPHOON WRNCEN PEARL HARBOR HI. THE SYSTEM WILL 
BE CLOSELY MONITORED FOR SIGNS OF REGENERATION. MAXIMUM SIGNIFICANT 
WAVE HEIGHT AT 141800Z IS 8 FEET.//
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