WTPN31 PGTW 310900    
1. TROPICAL DEPRESSION 31W WARNING NR 002    
   02 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
    ---
   WARNING POSITION:
   310600Z0 --- NEAR 9.0N9 132.3E9
     MOVEMENT PAST SIX HOURS - 315 DEGREES AT 15 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: 9.0N9 132.3E9
    ---
   FORECASTS:
   12 HRS, VALID AT:
   311800Z3 --- 10.4N5 130.0E4
   MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
   VECTOR TO 24 HR POSIT: 290 DEG/ 11 KTS
    ---
   24 HRS, VALID AT:
   010600Z7 --- 11.2N4 128.0E1
   MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT
   VECTOR TO 36 HR POSIT: 290 DEG/ 11 KTS
    ---
   36 HRS, VALID AT:
   011800Z0 --- 12.0N3 125.8E6
   MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT
   RADIUS OF 035 KT WINDS - 060 NM NORTH SEMICIRCLE      
                                   OVER WATER
                            045 NM ELSEWHERE OVER WATER
   VECTOR TO 48 HR POSIT: 290 DEG/ 11 KTS
    ---
   EXTENDED OUTLOOK:
   48 HRS, VALID AT:
   020600Z8 --- 12.8N1 123.6E2
   MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT
   RADIUS OF 035 KT WINDS - 060 NM NORTH SEMICIRCLE      
                                   OVER WATER
                            045 NM ELSEWHERE OVER WATER
   VECTOR TO 72 HR POSIT: 290 DEG/ 12 KTS
    ---
   72 HRS, VALID AT:
   030600Z9 --- 14.4N9 119.1E2
   MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT
    ---
REMARKS:
310900Z3 POSITION NEAR  9.3N2  131.7E2.
TROPICAL DEPRESSION (TD) 31W IS LOCATED APPROXIMATELY 170 NM 
NORTHWEST OF PALAU. 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. ANIMATED 
SATELLITE IMAGERY DEPICTS CONVECTION HAS BECOME MUCH BETTER 
ORGANIZED ABOUT A LOW LEVEL CIRCULATION CENTER (LLCC). A RECENT 
QUIKSCAT PASS INDICATES AN ELONGATED LLCC BELOW THE CONVECTION. 
UW-CIMSS SATELLITE DERIVED WIND PRODUCTS, INDICATE THE SYSTEM IS IN 
A LOW TO MODERATE VERTICAL WIND SHEAR ENVIRONMENT. TD 31W IS 
FORECAST TO TRACK INCREASINGLY WEST-NORTHWESTWARD UNDER THE STEERING 
INFLUENCE OF THE SUB TROPICAL RIDGE TO THE NORTH. THE SYSTEM IS 
FORECAST TO INTENSIFY UNTIL LANDFALL IN THE CENTRAL PHILIPPINES, AND 
MAY REINTENSIFY AS IT EMERGES INTO THE SOUTH CHINA SEA. MAXIMUM 
SIGNIFICANT WAVE HEIGHT AT 310600Z0 IS 08 FEET. REFER TO WWPW30 RJTX  
FOR ADDITIONAL SEA HEIGHT INFORMATION. NEXT WARNINGS AT 311500Z0 
(DTG 311352Z5), 312100Z7 (DTG 311952Z1), 010300Z4 (DTG 010152Z9) AND 
010900Z0 (DTG 010752Z5). REFER TO TYPHOON  30W (XANGSANE) WARNINGS 
(WTPN32 PGTW) FOR SIX-HOURLY UPDATES.//

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