Tropical Storm PODUL Advisory 8月30日

MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL DEPRESSION 13W (PODUL) WARNING NR 014//
RMKS/
1. TROPICAL DEPRESSION 13W (PODUL) WARNING NR 014
   DOWNGRADED FROM TROPICAL STORM 13W
   01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
   WIND RADII VALID OVER OPEN WATER ONLY
    ---
   WARNING POSITION:
   291800Z --- NEAR 17.4N 106.4E
     MOVEMENT PAST SIX HOURS - 260 DEGREES AT 17 KTS
     POSITION ACCURATE TO WITHIN 060 NM
     POSITION BASED ON CENTER LOCATED BY A COMBINATION OF
     SATELLITE AND SYNOPTIC DATA
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
   REPEAT POSIT: 17.4N 106.4E
    ---
   FORECASTS:
   12 HRS, VALID AT:
   300600Z --- 17.4N 104.1E
   MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
   VECTOR TO 24 HR POSIT: 280 DEG/ 09 KTS
    ---
   24 HRS, VALID AT:
   301800Z --- 17.7N 102.2E
   MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
    ---
REMARKS:
292100Z POSITION NEAR 17.4N 105.8E.
29AUG19. TROPICAL DEPRESSION (TD) 13W (PODUL), LOCATED APPROXIMATELY
218 NM SOUTH OF HANOI, VIETNAM, HAS TRACKED WESTWARD AT 17 KNOTS
OVER THE PAST SIX HOURS. ANIMATED ENHANCED INFRARED (EIR) SATELLITE
IMAGERY DEPICTS A PARTIALLY-EXPOSED LOW-LEVEL CIRCULATION CENTER
(LLCC) WITH WEAKENING CONVECTION DISPLACED OVER THE SOUTHWEST
QUADRANT. CURRENT SURFACE OBSERVATIONS FROM DONG HOI (48848),
APPROXIMATELY 15NM EAST-NORTHEAST OF THE CENTER, SHOW SOUTHEASTERLY
WINDS (10-MINUTE AVERAGE) AT 16 KNOTS AND SLP NEAR 994MB. THE INITIAL
POSITION IS BASED ON AN EIR IMAGERY LOOP AND THE AFOREMENTIONED
OBSERVATION. THE INITIAL INTENSITY IS ASSESSED AT 30 KNOTS BASED ON
30-35KT WINDS SHOWN ON A 291340Z ASCAT-C PASS BEFORE LANDFALL
OCCURRED. UPPER-LEVEL ANALYSIS CONTINUES TO DEPICT A MARGINAL
ENVIRONMENT WITH STRONG (25 TO 30 KNOTS) NORTHEASTERLY VERTICAL WIND
SHEAR AND BROAD, WEAK DIFFLUENCE. TD 13W IS TRACKING ALONG THE
SOUTHERN PERIPHERY OF A SUBTROPICAL RIDGE (STR) AND WILL CONTINUE
OVER LAND AS IT GRADUALLY DISSIPATES OVER THE NEXT 24 HOURS. 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.//
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