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WTPN31 PGTW 202100

MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//

SUBJ/TROPICAL DEPRESSION 16W (SANBA) WARNING NR 014//

RMKS/

1. TROPICAL DEPRESSION 16W (SANBA) WARNING NR 014

   01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC

   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE

   WIND RADII VALID OVER OPEN WATER ONLY

    ---

   WARNING POSITION:

   201800Z --- NEAR 19.9N 108.7E

     MOVEMENT PAST SIX HOURS - 235 DEGREES AT 07 KTS

     POSITION ACCURATE TO WITHIN 045 NM

     POSITION BASED ON CENTER LOCATED BY A COMBINATION OF

     SATELLITE AND SYNOPTIC DATA

   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: 19.9N 108.7E

    ---

   FORECASTS:

   12 HRS, VALID AT:

   210600Z --- 18.8N 107.9E

   MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT

   WIND RADII VALID OVER OPEN WATER ONLY

   DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER

   VECTOR TO 24 HR POSIT: 190 DEG/ 06 KTS

    ---

   24 HRS, VALID AT:

   211800Z --- 17.6N 107.7E

   MAX SUSTAINED WINDS - 015 KT, GUSTS 025 KT

   WIND RADII VALID OVER OPEN WATER ONLY

   DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER

    ---

REMARKS:

202100Z POSITION NEAR 19.6N 108.5E. 20OCT23.

TROPICAL DEPRESSION (TD) 16W (SANBA), LOCATED APPROXIMATELY

235 NM NORTH OF DA NANG, VIETNAM, HAS TRACKED SOUTHWESTWARD AT 07

KNOTS OVER THE PAST SIX HOURS. ANIMATED ENHANCED INFRARED (EIR)

SATELLITE IMAGERY AND A 201810Z ATMS 88.2 GHZ MICROWAVE IMAGE DEPICT A

WEAKLY DEFINED LOW-LEVEL CIRCULATION EMBEDDED WITHIN A STRATOCUMULUS

CLOUD FIELD WITH NO SIGNIFICANT DEEP CONVECTION. SURFACE OBSERVATIONS

FROM HAINAN ISLAND INDICATE LIGHT WINDS LESS THAN 10 KNOTS AND SLP

VALUES NEAR 1014 MB. SURFACE OBSERVATIONS FROM BACH LONG VI (48839),

APPROXIMATELY 50 NM WEST, SHOW NORTHEASTERLY WINDS AT 17 KNOTS WITH

SLP NEAR 1015 MB. NUMERICAL MODEL GUIDANCE INDICATES A GENERALLY

SOUTHWARD TRACK OVER THE NEXT 24 HOURS WITH STEADY WEAKENING AND

DISSIPATION. 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 201800Z IS 1008 MB.

MAXIMUM SIGNIFICANT WAVE HEIGHT AT 201800Z IS 11 FEET. //

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