Tropical Storm Fifteen

WP152026 Western Pacific

Current Conditions

As of Aug 11, 06:00 PM UTC

Position
30.5°N 158.5°E
Intensity
20 kt
Pressure
999.0 mb
Classification
—

Last JTWC warning 005 (final) · valid Aug 11 00Z: Tropical Depression

Track & cone

Best track Forecast track Cone beta
Intensity: D TD TS Cat 1 Cat 2 Cat 3 Cat 4 Cat 5 L Post-tropical / low Radii: 34 50 64 kt · click points for detail
Warning 005 Aug 11, 03:00 AM UTC
WTPN34 PGTW 110300
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL DEPRESSION 15W (FIFTEEN) WARNING NR 005//
RMKS/
1. TROPICAL DEPRESSION 15W (FIFTEEN) WARNING NR 005    
   03 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
   WIND RADII VALID OVER OPEN WATER ONLY
    ---
   WARNING POSITION:
   110000Z --- NEAR 28.4N 160.8E
     MOVEMENT PAST SIX HOURS - 030 DEGREES AT 10 KTS
     POSITION ACCURATE TO WITHIN 020 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: 28.4N 160.8E
    ---
   FORECASTS:
   12 HRS, VALID AT:
   111200Z --- 29.6N 160.2E
   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: 345 DEG/ 03 KTS
    ---
   24 HRS, VALID AT:
   120000Z --- 30.2N 160.0E
   MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
    ---
REMARKS:
110300Z POSITION NEAR 28.7N 160.6E.
11AUG26. TROPICAL DEPRESSION 15W (FIFTEEN), LOCATED APPROXIMATELY
632 NM NORTH-NORTHWEST OF WAKE ISLAND, HAS TRACKED NORTH-
NORTHEASTWARD AT 10 KNOTS OVER THE PAST SIX HOURS. THE LOW-LEVEL
CIRCULATION CENTER REMAINS FULLY EXPOSED IN ANIMATED MULTISPECTRAL
SATELLITE IMAGERY, WITH REMAINING CONVECTION HEAVILY SHEARED TO THE
EAST. A 102156Z SCATTEROMOTRY WIND SPEED IMAGE CONFIRMED THE
INITIAL INTENSITY OF 25 KNOTS. TD 15W HAS ENTERED A HOSTILE
ENVIRONMENT OF MODERATE-HIGH WIND SHEAR AND HAS BEEN UNABLE TO
SUPPORT CONVECTION NEAR THE LLCC. THE SYSTEM IS FORECAST TO
CONTINUE A DISSIPATION TREND, WITH INTENSITY DECREASING BELOW 20
KNOTS IN THE NEXT 12 HOURS AS IT TRANSITS GENERALLY NORTHWARD.
NUMERICAL MODEL GUIDANCE IS IN GOOD AGREEMENT ABOUT THE TERMINAL
WEAKENING OF TD 15W. 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 110000Z IS 997MB.
MAXIMUM SIGNIFICANT WAVE HEIGHT AT 110000Z IS 11 FEET.
REFER TO TROPICAL STORM 13W (PEILOU) WARNINGS (WTPN32 PGTW)
FOR SIX-HOURLY UPDATES.
REFER TO TROPICAL STORM 14W (CHAN-HOM) WARNINGS (WTPN33 PGTW)
FOR SIX-HOURLY UPDATES.
//
NNNN

Track

Time Position Intensity Pressure Class
Observed · best track
Aug 10, 12:00 AM UTC 25.6°N 160.1°E 30 kt 997.0 mb —
Aug 10, 06:00 AM UTC 27.1°N 160.7°E 35 kt 993.0 mb —
Aug 10, 12:00 PM UTC 27.5°N 160.6°E 30 kt 996.0 mb —
Aug 10, 06:00 PM UTC 27.5°N 160.2°E 25 kt 997.0 mb —
Aug 11, 12:00 AM UTC 28.4°N 160.8°E 25 kt 997.0 mb —
Aug 11, 06:00 AM UTC 29.2°N 162.2°E 25 kt 1000.0 mb —
Aug 11, 12:00 PM UTC 31.0°N 161.0°E 25 kt 1000.0 mb —
Aug 11, 06:00 PM UTC 30.5°N 158.5°E 20 kt 999.0 mb —
Forecast OFCL · issued Aug 11, 12:00 AM UTC
Aug 12, 12:00 AM UTC +24h 30.2°N 160.0°E 20 kt — Low