WTPN33 PGTW 170300    
1. TROPICAL STORM 15W (EWINIAR) WARNING NR 032    
   01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
    ---
   WARNING POSITION:
   170000Z8 --- NEAR 38.5N6 150.0E6
     MOVEMENT PAST SIX HOURS - 295 DEGREES AT 04 KTS
     POSITION ACCURATE TO WITHIN 030 NM
     POSITION BASED ON CENTER LOCATED BY SATELLITE
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT
   DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
   RADIUS OF 035 KT WINDS - 180 NM NORTH SEMICIRCLE      
                            140 NM ELSEWHERE
   REPEAT POSIT: 38.5N6 150.0E6
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   FORECASTS:
   12 HRS, VALID AT:
   171200Z1 --- 38.7N8 149.3E7
   MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT
   DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
   VECTOR TO 24 HR POSIT: 290 DEG/ 03 KTS
    ---
   24 HRS, VALID AT:
   180000Z9 --- 38.9N0 148.6E9
   MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT
   DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
   VECTOR TO 36 HR POSIT: 200 DEG/ 01 KTS
    ---
   36 HRS, VALID AT:
   181200Z2 --- 38.7N8 148.5E8
   MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
   DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
   VECTOR TO 48 HR POSIT: 065 DEG/ 01 KTS
    ---
   EXTENDED OUTLOOK:
   48 HRS, VALID AT:
   190000Z0 --- 38.8N9 148.8E1
   MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT
   DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
   VECTOR TO 72 HR POSIT: 105 DEG/ 02 KTS
    ---
   72 HRS, VALID AT:
   200000Z2 --- 38.6N7 149.7E1
   MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT
   DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
    ---
REMARKS:
170300Z1 POSITION NEAR 38.6N7  149.8E2.
TROPICAL STORM (TS) 15W (EWINIAR), LOCATED APPROXIMATELY 400 NM
SOUTHEAST OF HOKKAIDO, JAPAN, HAS DRIFTED WEST-NORTHWESTWARD AT 4 
KNOTS OVER THE PAST 6 HOURS. THE WARNING POSITION IS BASED ON 
162330Z5 VISIBLE AND INFRARED SATELLITE IMAGERY. THE WARNING 
INTENSITY IS BASED ON SATELLITE CURRENT INTENSITY ESTIMATES OF 35 TO 
45 KNOTS. ANIMATED MULTI-SPECTRAL SATELLITE IMAGERY DEPICTS A 
TIGHTLY WOUND LOW LEVEL CIRCULATION CENTER (LLCC) WITH VIRTUALLY NO 
CONVECTION ASSOCIATED WITH THE SYSTEM. A RECENT QUICKSCATT PASS 
INDICATES A BROAD LLCC WITH STRONGEST WINDS BEGINNING TO MOVE AWAY 
FROM THE SEASON. THE SYSTEM HAS BEGUN TO MOVE UNDER THE INFLUENCE OF 
THE RIDGE TO THE NORTH, WHICH IS FORECAST TO WEAKEN AFTER THE 24 
HOUR TIMEFRAME. TS 15W WILL THEN LOSE ITS STEERING FLOW FOR 
APPROXIMATELY 24-48 HOURS, WHEN THE SUBTROPICAL RIDGE WILL PICK UP 
THE STEERING FLOW AND RESUME THE EASTWARD TRACK. THE SYSTEM IS 
FORECAST TO DISSIPATE OVER LOWER SEA SURFACE TEMPERATURES AND UNDER 
MODERATE VERTICAL WIND SHEAR. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 
170000Z8 IS 18 FEET.REFER TO WWPW31 RJTX FOR ADDITIONAL SEA HEIGHT 
INFORMATION. NEXT WARNINGS AT 170900Z7 (DTG 170753Z3), 171500Z4 (DTG 
171353Z0), 172100Z1 (DTG 171953Z6) AND 180300Z2 (DTG 180153Z8).//

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