Overall Green Tropical Cyclone for FIFTEEN-26 Off-shore from 10 Aug 2026 00:00 UTC to 06:00

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Overall Green Tropical Cyclone for FIFTEEN-26

Off-shore

Global Telecommunication Service

GTS (Global Telecommunication Service) is the official Warning and Alerting channel by the World Meteorological Organization (WMO) adopted by several Warning Organizations. As soon as a new GTS message regarding Tropical Cyclones(WT) or Tsunami(WE) the messages are processed and possibly assigned to the specific event. When a new GTS message is present an new tab in the specific event report page is present.The presence of a GTS message is shown in the homepage with a dedicated icon.

Click on the messages list to visualize on the right the detailed text.

Measurements Levels

SOURCE	GAUGE LOCATION	LAT	LON	TIME (UTC)	HEIGHT (m)	PERIOD (min)

10/08 08:35 WTPN54PGTW100900

10/08 08:28 WTPN34PGTW100900

10/08 02:11 WTPN54PGTW100300

10/08 02:10 WTPN34PGTW100300

Original Message :

WTPN54 PGTW 100900
WARNING ATCG MIL 15W NWP 260810081320
2026081006 15W FIFTEEN 002 04 020 16 SATL 060
T000 271N 1607E 035 R034 080 NE QD 065 SE QD 000 SW QD 000 NW QD
T012 286N 1612E 030
T024 301N 1621E 025
T036 318N 1628E 020
AMP
012HR DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
024HR DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
036HR DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
SUBJ: TROPICAL STORM 15W (FIFTEEN) WARNING NR 002
1. TROPICAL STORM 15W (FIFTEEN) WARNING NR 002
UPGRADED FROM TROPICAL DEPRESSION 15W
04 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
WIND RADII VALID OVER OPEN WATER ONLY
---
WARNING POSITION:
100600Z --- NEAR 27.1N 160.7E
MOVEMENT PAST SIX HOURS - 020 DEGREES AT 16 KTS
POSITION ACCURATE TO WITHIN 060 NM
POSITION BASED ON CENTER LOCATED BY SATELLITE
PRESENT WIND DISTRIBUTION:
MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 034 KT WINDS - 080 NM NORTHEAST QUADRANT
065 NM SOUTHEAST QUADRANT
000 NM SOUTHWEST QUADRANT
000 NM NORTHWEST QUADRANT
REPEAT POSIT: 27.1N 160.7E
---
FORECASTS:
12 HRS, VALID AT:
101800Z --- 28.6N 161.2E
MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
WIND RADII VALID OVER OPEN WATER ONLY
DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
VECTOR TO 24 HR POSIT: 025 DEG/ 08 KTS
---
24 HRS, VALID AT:
110600Z --- 30.1N 162.1E
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 36 HR POSIT: 020 DEG/ 09 KTS
---
36 HRS, VALID AT:
111800Z --- 31.8N 162.8E
MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT
WIND RADII VALID OVER OPEN WATER ONLY
DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
---
REMARKS:
100900Z POSITION NEAR 27.5N 160.8E.
10AUG26. TROPICAL STORM 15W (FIFTEEN), LOCATED APPROXIMATELY 570
NM NORTHWEST OF WAKE ISLAND, HAS TRACKED NORTH-NORTHEASTWARD AT
16 KNOTS OVER THE PAST SIX HOURS.
MINIMUM CENTRAL PRESSURE AT 100600Z IS 993 MB. MAXIMUM
SIGNIFICANT WAVE HEIGHT AT 100600Z IS 12 FEET. NEXT WARNINGS AT
101500Z, 102100Z, 110300Z AND 110900Z.
FOR SIX-HOURLY UPDATES.
FOR SIX-HOURLY UPDATES.
FOR SIX-HOURLY UPDATES.
//
1526080612 185N1422E 15
1526080618 186N1427E 15
1526080700 187N1432E 15
1526080706 189N1441E 15
1526080712 190N1452E 20
1526080718 190N1464E 25
1526080800 190N1480E 25
1526080806 196N1505E 25
1526080812 207N1527E 25
1526080818 215N1548E 25
1526080900 223N1565E 20
1526080906 229N1578E 20
1526080912 235N1589E 20
1526080918 246N1597E 25
1526081000 256N1601E 30
1526081006 271N1607E 35
NNNN

Original Message :

WTPN34 PGTW 100900
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL STORM 15W (FIFTEEN) WARNING NR 002//
RMKS/
1. TROPICAL STORM 15W (FIFTEEN) WARNING NR 002
UPGRADED FROM TROPICAL DEPRESSION 15W
04 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
WIND RADII VALID OVER OPEN WATER ONLY
---
WARNING POSITION:
100600Z --- NEAR 27.1N 160.7E
MOVEMENT PAST SIX HOURS - 020 DEGREES AT 16 KTS
POSITION ACCURATE TO WITHIN 060 NM
POSITION BASED ON CENTER LOCATED BY SATELLITE
PRESENT WIND DISTRIBUTION:
MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 034 KT WINDS - 080 NM NORTHEAST QUADRANT
065 NM SOUTHEAST QUADRANT
000 NM SOUTHWEST QUADRANT
000 NM NORTHWEST QUADRANT
REPEAT POSIT: 27.1N 160.7E
---
FORECASTS:
12 HRS, VALID AT:
101800Z --- 28.6N 161.2E
MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
WIND RADII VALID OVER OPEN WATER ONLY
DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
VECTOR TO 24 HR POSIT: 025 DEG/ 08 KTS
---
24 HRS, VALID AT:
110600Z --- 30.1N 162.1E
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 36 HR POSIT: 020 DEG/ 09 KTS
---
36 HRS, VALID AT:
111800Z --- 31.8N 162.8E
MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT
WIND RADII VALID OVER OPEN WATER ONLY
// END PART 01 //

Original Message :

WTPN54 PGTW 100300
WARNING ATCG MIL 15W NWP 260810015549
2026081000 15W FIFTEEN 001 04 020 11 SATL 060
T000 256N 1601E 030
T012 272N 1604E 025
T024 289N 1602E 020
AMP
012HR DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
024HR DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
SUBJ: TROPICAL DEPRESSION 15W (FIFTEEN) WARNING NR 001
1. TROPICAL DEPRESSION 15W (FIFTEEN) WARNING NR 001
04 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
WIND RADII VALID OVER OPEN WATER ONLY
---
WARNING POSITION:
100000Z --- NEAR 25.6N 160.1E
MOVEMENT PAST SIX HOURS - 020 DEGREES AT 11 KTS
POSITION ACCURATE TO WITHIN 060 NM
POSITION BASED ON CENTER LOCATED BY SATELLITE
PRESENT WIND DISTRIBUTION:
MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
WIND RADII VALID OVER OPEN WATER ONLY
REPEAT POSIT: 25.6N 160.1E
---
FORECASTS:
12 HRS, VALID AT:
101200Z --- 27.2N 160.4E
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: 355 DEG/ 09 KTS
---
24 HRS, VALID AT:
110000Z --- 28.9N 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
---
REMARKS:
100300Z POSITION NEAR 26.0N 160.2E.
10AUG26. TROPICAL DEPRESSION 15W (FIFTEEN), LOCATED APPROXIMATELY
522 NM NORTHWEST OF WAKE ISLAND, HAS TRACKED NORTH-NORTHEASTWARD
AT 11 KNOTS OVER THE PAST SIX HOURS.
MINIMUM CENTRAL PRESSURE AT 100000Z IS 997 MB. MAXIMUM
SIGNIFICANT WAVE HEIGHT AT 100000Z IS 12 FEET. NEXT WARNINGS AT
100900Z, 101500Z AND 102100Z.
FOR SIX-HOURLY UPDATES.
FOR SIX-HOURLY UPDATES.//
1526080612 185N1422E 15
1526080618 186N1427E 15
1526080700 187N1432E 15
1526080706 189N1441E 15
1526080712 190N1452E 20
1526080718 190N1464E 25
1526080800 190N1480E 25
1526080806 196N1505E 25
1526080812 207N1527E 25
1526080818 215N1548E 25
1526080900 223N1565E 20
1526080906 229N1578E 20
1526080912 235N1589E 20
1526080918 246N1597E 25
1526081000 256N1601E 30
NNNN

Original Message :

WTPN34 PGTW 100300
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL DEPRESSION 15W (FIFTEEN) WARNING NR 001//
REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/090552ZAUG2026//
AMPN/REF A IS A TROPICAL CYCLONE FORMATION ALERT.//
RMKS/
1. TROPICAL DEPRESSION 15W (FIFTEEN) WARNING NR 001
04 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
WIND RADII VALID OVER OPEN WATER ONLY
---
WARNING POSITION:
100000Z --- NEAR 25.6N 160.1E
MOVEMENT PAST SIX HOURS - 020 DEGREES AT 11 KTS
POSITION ACCURATE TO WITHIN 060 NM
POSITION BASED ON CENTER LOCATED BY SATELLITE
PRESENT WIND DISTRIBUTION:
MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
WIND RADII VALID OVER OPEN WATER ONLY
REPEAT POSIT: 25.6N 160.1E
---
FORECASTS:
12 HRS, VALID AT:
101200Z --- 27.2N 160.4E
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: 355 DEG/ 09 KTS
---
24 HRS, VALID AT:
110000Z --- 28.9N 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
---
REMARKS:
100300Z POSITION NEAR 26.0N 160.2E.
10AUG26. TROPICAL DEPRESSION 15W (FIFTEEN), LOCATED APPROXIMATELY
522 NM NORTHWEST OF WAKE ISLAND, HAS TRACKED NORTH-NORTHEASTWARD
AT 11 KNOTS OVER THE PAST SIX HOURS.
MINIMUM CENTRAL PRESSURE AT 100000Z IS 997 MB. MAXIMUM
SIGNIFICANT WAVE HEIGHT AT 100000Z IS 12 FEET. NEXT WARNINGS AT
// END PART 01 //

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