WTPN31 PGTW 110900    
1. TROPICAL DEPRESSION 18W WARNING NR 003    
   02 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
    ---
   WARNING POSITION:
   110600Z8 --- NEAR 10.4N5 130.0E4
     MOVEMENT PAST SIX HOURS - 315 DEGREES AT 04 KTS
     POSITION ACCURATE TO WITHIN 060 NM
     POSITION BASED ON CENTER LOCATED BY SATELLITE
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
   REPEAT POSIT: 10.4N5 130.0E4
    ---
   FORECASTS:
   12 HRS, VALID AT:
   111800Z1 --- 10.8N9 129.9E1
   MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT
   VECTOR TO 24 HR POSIT: 020 DEG/ 03 KTS
    ---
   24 HRS, VALID AT:
   120600Z9 --- 11.4N6 130.1E5
   MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT
   VECTOR TO 36 HR POSIT: 360 DEG/ 04 KTS
    ---
   36 HRS, VALID AT:
   121800Z2 --- 12.2N5 130.2E6
   MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT
   RADIUS OF 034 KT WINDS - 055 NM NORTHEAST QUADRANT    
                            050 NM SOUTHEAST QUADRANT    
                            055 NM SOUTHWEST QUADRANT    
                            055 NM NORTHWEST QUADRANT    
   VECTOR TO 48 HR POSIT: 335 DEG/ 04 KTS
    ---
   EXTENDED OUTLOOK:
   48 HRS, VALID AT:
   130600Z0 --- 12.9N2 129.9E1
   MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT
   RADIUS OF 034 KT WINDS - 060 NM NORTHEAST QUADRANT    
                            055 NM SOUTHEAST QUADRANT    
                            065 NM SOUTHWEST QUADRANT    
                            065 NM NORTHWEST QUADRANT    
   VECTOR TO 72 HR POSIT: 310 DEG/ 02 KTS
    ---
   72 HRS, VALID AT:
   140600Z1 --- 13.4N8 129.3E5
   MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT
   RADIUS OF 034 KT WINDS - 060 NM NORTHEAST QUADRANT    
                            055 NM SOUTHEAST QUADRANT    
                            070 NM SOUTHWEST QUADRANT    
                            070 NM NORTHWEST QUADRANT    
    ---
REMARKS:
110900Z1 POSITION NEAR 10.5N6 130.0E4.
TROPICAL DEPRESSION (TD) 18W, LOCATED APPROXIMATELY 230 NM 
EAST-NORTHEAST OF MINDANAO, HAS TRACKED NORTHWESTWARD AT 04 KNOTS 
OVER THE PAST 6 HOURS. THE WARNING POSITION IS BASED ON 110530Z0 
MULTI-SPECTRAL SATELLITE IMAGERY. THE WARNING INTENSITY IS BASED ON 
SATELLITE CURRENT INTENSITY ESTIMATES OF 25 AND 30 KNOTS. ANIMATED 
VISIBLE IMAGERY REVEALS THAT THE LOW LEVEL CIRCULATION CENTER 
REMAINS PARTIALLY EXPOSED TO THE EAST OF THE MID-LEVEL VORTEX. DEEP 
CONVECTION REMAINS CONCENTRATED IN THE WESTERN SEMICIRCLE OF THE 
SYSTEM. SURFACE ANALYSIS SHOWS THAT TD 18W IS EMBEDDED WITHIN THE 
MONSOON TROUGH. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 110600Z8 IS 12 
FEET. REFER TO WWPW30 RJTX FOR ADDITIONAL SEA HEIGHT INFORMATION. 
NEXT WARNINGS AT 111500Z8, 112100Z5, 120300Z6 AND 120900Z2. REFER TO 
TROPICAL DEPRESSION 19W WARNINGS (WTPN32 PGTW) FOR SIX-HOURLY 
UPDATES.//



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