WTPN32 PGTW 031500
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL DEPRESSION 09W (SAOLA) WARNING NR 044//
RMKS/
1. TROPICAL DEPRESSION 09W (SAOLA) WARNING NR 044    
   03 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
   WIND RADII VALID OVER OPEN WATER ONLY
    ---
   WARNING POSITION:
   031200Z --- NEAR 20.7N 109.0E
     MOVEMENT PAST SIX HOURS - 225 DEGREES AT 04 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
   WIND RADII VALID OVER OPEN WATER ONLY
   DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
   REPEAT POSIT: 20.7N 109.0E
    ---
   FORECASTS:
   12 HRS, VALID AT:
   040000Z --- 20.2N 108.4E
   MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
   VECTOR TO 24 HR POSIT: 205 DEG/ 04 KTS
    ---
   24 HRS, VALID AT:
   041200Z --- 19.4N 108.0E
   MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
    ---
REMARKS:
031500Z POSITION NEAR 20.6N 108.9E.
03SEP23. TROPICAL DEPRESSION 09W (SAOLA), LOCATED APPROXIMATELY
175 NM EAST OF HANOI, VIETNAM, HAS TRACKED SOUTHWESTWARD AT 04
KNOTS OVER THE PAST SIX HOURS. TROPICAL DEPRESSION (TD) 09W (SAOLA) 
HAS WEAKENED CONSIDERABLY AFTER MOVING INTO THE NORTHERN GULF OF 
TONKIN, PRIMARILY AS A RESULT OF DRY MID-LEVEL AIR AND MODERATE 
SOUTHEASTERLY SHEAR. ANIMATED ENHANCED INFRARED (EIR) SATELLITE 
IMAGERY SHOWS A BROAD LOW LEVEL CIRCULATION (LLC) COMPRISED OF LOW-
LEVEL STRATUS AND STRATOCUMULUS CLOUDS, DEVOID OF SIGNIFICANT 
CONVECTION. THE INITIAL POSITION WAS ASSESSED WITH HIGH CONFIDENCE BY 
TRACKING THE LLC IN THE ANIMATED EIR. THE INITIAL INTENSITY IS LOWERED 
TO 25 KNOTS BASED ON THE ADT, AIDT, AND DPRINT ESTIMATES BETWEEN 25-27 
KNOTS. THE SYSTEM IS DRIFTING SOUTHWARD ALONG THE SOUTHEASTERN SIDE OF 
A LOW TO MID-LEVEL RIDGE OVER CENTRAL CHINA. TD 10W WILL CONTINUE TO 
SLOWLY SPIN DOWN OVER THE NEXT 12 TO 24 HOURS AS IT TRACKS SOUTH-
SOUTHWESTWARD, FULLY DISSIPATING AS A TROPICAL CYCLONE BY TAU 24, TO 
THE WEST OF HAINAN. THIS IS THE FINAL WARNING ON THIS SYSTEM BY THE 
JOINT TYPHOON WRNCEN PEARL HARBOR HI. THE SYSTEM WILL BE CLOSELY 
MONITORED FOR SIGNS OF REGENERATION. MINIMUM CENTRAL PRESSURE AT 
031200Z IS 1004 MB. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 031200Z IS 10 
FEET. REFER TO TYPHOON 10W (HAIKUI) WARNINGS (WTPN33 PGTW) FOR SIX-
HOURLY UPDATES. REFER TO TROPICAL DEPRESSION 11W (KIROGI) WARNINGS 
(WTPN31 PGTW) FOR FINAL WARNING.
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