SUBJ:  TROPICAL CYCLONE WARNING
WTPN31 PGTW 300900    
1. TROPICAL DEPRESSION 27W WARNING NR 007    
   01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
    ---
   WARNING POSITION:
   300600Z9 --- NEAR 29.4N5 167.9E3
     MOVEMENT PAST SIX HOURS - 065 DEGREES AT 05 KTS
     POSITION ACCURATE TO WITHIN 040 NM
     POSITION BASED ON CENTER LOCATED BY SATELLITE
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT
   EXTRATROPICAL
   REPEAT POSIT: 29.4N5 167.9E3
    ---
   FORECASTS:
   12 HRS, VALID AT:
   301800Z2 --- 30.2N5 168.7E2
   MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT
   EXTRATROPICAL
   VECTOR TO 24 HR POSIT: 020 DEG/ 08 KTS
    ---
   24 HRS, VALID AT:
   010600Z7 --- 31.7N1 169.3E9
   MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT
   EXTRATROPICAL
   VECTOR TO 36 HR POSIT: 040 DEG/ 07 KTS
    ---
   36 HRS, VALID AT:
   011800Z0 --- 32.7N2 170.3E1
   MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT
   EXTRATROPICAL
    ---
REMARKS:
300900Z2 POSITION NEAR 29.6N7  168.1E6.
TROPICAL DEPRESSION (TD) 27W, LOCATED APPROXIMATELY 610 NM NORTH OF
WAKE ISLAND, HAS TRACKED NORTHEASTWARD AT 05 KNOTS DURING THE PAST 6
HOURS. THE WARNING POSITION IS BASED ON 300530Z1 VISIBLE SATELLITE 
IMAGERY. THE WARNING INTENSITY IS BASED ON SATELLITE CURRENT 
INTENSITY ESTIMATES OF 25 AND 30 KNOTS. ANIMATED VISIBLE AND WATER 
VAPOR IMAGERY DEPICT THAT COLD AIR AND VERTICAL WIND SHEAR 
ASSOCIATED WITH A MID-LATITUDE TROUGH HAVE INFLUENCED TD 27W TO 
BECOME AN EXTRA-TROPICAL SYSTEM. VISIBLE IMAGERY SHOWS AN ASYMMETRIC 
APPEARANCE OF THE CLOUD PATTERN AND A VIRTUAL DISSIPATION OF THE 
DEEP CONVECTION OVER THE SOUTHERN AND WESTERN QUADRANTS. THE LOW-
LEVEL CIRCULATION CENTER (LLCC) HAS ALSO BECOME FULLY EXPOSED. OPEN-
CELL CUMULUS IS OBSERVED JUST TO THE WEST OF THE LLCC. WATER VAPOR 
IMAGERY AND ANALYSIS REVEAL THAT THE EXTRA-TROPICAL LOW IS EMBEDDED 
IN COLD DRY AIR ASSOCIATED WITH THE BAROCLINIC SYSTEM. TD 27W SHOULD 
TRACK GENERALLY NORTHEASTWARD THROUGH THE PERIOD. MAXIMUM 
SIGNIFICANT WAVE HEIGHT AT 300600Z9 IS 12 FEET. REFER TO WWPW30 RJTX 
FOR ADDITIONAL SEA HEIGHT INFORMATION. THIS IS THE FINAL WARNING ON 
THIS SYSTEM BY THE JOINT TYPHOON WARNING CENTER (NAVPACMETOCCEN).  
THE SYSTEM WILL BE CLOSELY MONITORED FOR SIGNS OF REGENERATION.//



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