WTPN32 PGTW 011500    
1. TROPICAL STORM 30W (XANGSANE) WARNING NR 029    
   DOWNGRADED FROM TYPHOON 30W
   02 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
    ---
   WARNING POSITION:
   011200Z4 --- NEAR 28.7N7 125.4E2
     MOVEMENT PAST SIX HOURS - 040 DEGREES AT 33 KTS
     POSITION ACCURATE TO WITHIN 060 NM
     POSITION BASED ON CENTER LOCATED BY SATELLITE
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT
   BECOMING EXTRATROPICAL
   RADIUS OF 035 KT WINDS - 085 NM NORTH SEMICIRCLE      
                            070 NM ELSEWHERE
   REPEAT POSIT: 28.7N7 125.4E2
    ---
   FORECASTS:
   12 HRS, VALID AT:
   020000Z2 --- 32.9N4 131.3E8
   MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT
   EXTRATROPICAL
   RADIUS OF 035 KT WINDS - 065 NM NORTH SEMICIRCLE      
                                   OVER WATER
                            050 NM ELSEWHERE OVER WATER
   VECTOR TO 24 HR POSIT: 060 DEG/ 33 KTS
    ---
   24 HRS, VALID AT:
   021200Z5 --- 36.0N9 138.3E5
   MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT
   EXTRATROPICAL
   VECTOR TO 36 HR POSIT: 070 DEG/ 39 KTS
    ---
   36 HRS, VALID AT:
   030000Z3 --- 38.3N4 147.6E8
   MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT
   EXTRATROPICAL
   VECTOR TO 48 HR POSIT: 095 DEG/ 40 KTS
    ---
   EXTENDED OUTLOOK:
   48 HRS, VALID AT:
   031200Z6 --- 37.4N4 157.7E0
   MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
   EXTRATROPICAL
    ---
REMARKS:
011500Z7 POSITION NEAR 29.8N9 126.9E8.
TROPICAL STORM (TS) 30W (XANGSANE), LOCATED APPROXIMATELY 341 NM 
SOUTHWEST OF SASEBO, JAPAN, HAS MOVED NORTHEASTWARD AT 33 KNOTS 
DURING THE PAST 06 HOURS. THE WARNING POSITION IS BASED ON 011130Z6 
INFRARED SATELLITE IMAGERY. THE WARNING INTENSITY IS BASED ON 
SATELLITE CURRENT INTENSITY ESTIMATES OF 45 AND 55 KNOTS, AND RECENT 
SYNOPTIC REPORTS. ANIMATED SATELLITE IMAGERY DEPICTS RAPID ADVECTION 
OF THE CONVECTION TO THE NORTH-NORTHEAST. THE SYSTEM HAS BEGUN ITS 
EXTRA-TROPICAL TRANSITION (XTT), AND BEGUN TO PICK UP JET SUPPORT. 
THE SYSTEM IS FORECAST TO TRACK INCREASINGLY NORTHEASTWARD UNDER THE 
COMBINED STEERING FLOW OF THE SUB-TROPICAL RIDGE TO THE EAST, AND 
THE MID-LATITUDE WESTERLIES. THE SPEED OF ADVANCE WILL CONTINUE TO 
INCREASE THROUGH THE PERIOD AS THE SYSTEM COMPLETES ITS XTT. UW-
CIMSS SATELLITE DERIVED WIND PRODUCTS, INDICATE THE SYSTEM IS IN 
STRONG VERTICAL WIND SHEAR WHICH WILL SERVE TO FURTHER WEAKEN THE 
SYSTEM AS IT COMPLETES XTT. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 
011200Z4 IS 18 FEET. REFER TO WWPW31 RJTX FOR ADDITIONAL SEA HEIGHT 
INFORMATION. NEXT WARNINGS AT 012100Z4 (DTG 011952Z8), 020300Z5 (DTG 
020152Z0), 020900Z1 (DTG 020752Z6) AND 021500Z8 (DTG 021352Z3).
REFER TO TROPICAL STORM  31W (BEBINCA) WARNINGS (WTPN31 PGTW)
FOR SIX-HOURLY UPDATES.//


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