WTPN31 PGTW 310900    
1. TROPICAL DEPRESSION 04W WARNING NR 003    
   01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
    ---
   WARNING POSITION:
   310600Z0 --- NEAR 14.2N7 110.6E8
     MOVEMENT PAST SIX HOURS - 330 DEGREES AT 10 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
   REPEAT POSIT: 14.2N7 110.6E8
    ---
   FORECASTS:
   12 HRS, VALID AT:
   311800Z3 --- 15.8N4 109.7E7
   MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
   VECTOR TO 24 HR POSIT: 310 DEG/ 09 KTS
    ---
   24 HRS, VALID AT:
   010600Z7 --- 17.0N8 108.2E1
   MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT
   VECTOR TO 36 HR POSIT: 300 DEG/ 10 KTS
    ---
   36 HRS, VALID AT:
   011800Z0 --- 18.0N9 106.5E2
   MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
   DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
   VECTOR TO 48 HR POSIT: 310 DEG/ 10 KTS
    ---
   EXTENDED OUTLOOK:
   
48 HRS
, VALID AT:
   020600Z8 --- 19.3N3 104.9E4
   MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT
   DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
    ---
REMARKS:
310900Z3 POSITION NEAR 14.6N1 110.4E6.
TROPICAL DEPRESSION (TD) 04W, LOCATED APPROXIMATELY 175 NM
SOUTHEAST OF DA NANG, 
VIETNAM
, HAS TRACKED NORTH-NORTHWESTWARD AT 
10 KNOTS OVER THE PAST 6 HOURS. THE WARNING POSITION IS BASED ON 
310530Z2 VISIBLE AND INFRARED SATELLITE IMAGERY. THE WARNING 
INTENSITY IS BASED ON SATELLITE CURRENT INTENSITY ESTIMATES OF 25 
KNOTS AND SYNOPTIC DATA. ANIMATED VISIBLE SATELLITE IMAGERY SHOWS 
CONVECTION ATTEMPTING TO REESTABLISH ITSELF OVER THE EXPOSED LOW 
LEVEL CIRCULAITON CENTER (LLCC). UW-CIMSS SATELLITE DERIVED WIND 
PRODUCTS INDICATE GOOD OUTFLOW, AND DECREASING VERTICAL WIND SHEAR 
TO THE NORTH OF THE SYSTEM. TD 04W IS FORECAST TO TRACK 
NORTHWESTWARD UNDER THE STEERING INFLUENCE OF THE SUBTROPICAL RIDGE 
TO THE EAST. CONVECTION IS EXPECTED TO CONTINUE ORGANIZING OVER THE 
LLCC CAUSING THE STORM TO INTENSIFY THROUGH THE 24 HOUR FORECAST 
PERIOD. INTERACTION WITH LAND AS THE SYSTEM MOVES INTO THE GULF OF 
TONKIN, AND LANDFALL AFTER THE 36 HOUR TIMEFRAME, WILL SERVE TO 
INHIBIT FURTHER INTENSIFICATION AND DISSIPATE THE SYSTEM OVER LAND 
WITHIN 48 HOURS. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 310600Z0 IS 12 
FEET. REFER TO WWPW30 RJTX FOR ADDITIONAL SEA HEIGHT INFORMATION. 
NEXT WARNINGS AT 311500Z0 (DTG 311351Z4), 312100Z7 (DTG 311951Z0), 
010300Z4 (DTG 010151Z8) AND 010900Z0 (DTG 010751Z4).//




NNNN