Overall Green Tropical Cyclone for NANGKA-26 Off-shore from 12 Aug 2026 12:00 UTC to 14 Aug 2026 12:00 UTC

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Overall Green Tropical Cyclone for NANGKA-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)

14/08 14:01 WTPN51PGTW141400

14/08 14:01 WTPN31PGTW141400

13/08 22:19 WTPN31PGTW132100

13/08 22:19 WTPN51PGTW132100

13/08 14:25 WTPN51PGTW131500

13/08 14:24 WTPN31PGTW131500

12/08 21:13 WTPQ31PGUM122112

12/08 19:56 WTPN31PGTW122100

12/08 19:56 WTPN51PGTW122100

12/08 15:09 WTPQ31PGUM121507

Original Message :

WTPN51 PGTW 141400
WARNING ATCG MIL 16W NWP 260814132821
2026081412 16W NANGKA 009 02 100 07 SATL 040
T000 283N 1545E 025
T012 282N 1562E 020
T024 285N 1582E 020
AMP 000HR DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
012HR DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
024HR DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
SUBJ: TROPICAL DEPRESSION 16W (NANGKA) WARNING NR 009
1. TROPICAL DEPRESSION 16W (NANGKA) WARNING NR 009
02 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
WIND RADII VALID OVER OPEN WATER ONLY
---
WARNING POSITION:
141200Z --- NEAR 28.3N 154.5E
MOVEMENT PAST SIX HOURS - 100 DEGREES AT 07 KTS
POSITION ACCURATE TO WITHIN 040 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: 28.3N 154.5E
---
FORECASTS:
12 HRS, VALID AT:
150000Z --- 28.2N 156.2E
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: 080 DEG/ 09 KTS
---
24 HRS, VALID AT:
151200Z --- 28.5N 158.2E
MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT
WIND RADII VALID OVER OPEN WATER ONLY
DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
---
REMARKS:
141500Z POSITION NEAR 28.3N 154.9E.
14AUG26. TROPICAL DEPRESSION 16W (NANGKA), LOCATED APPROXIMATELY
247 NM NORTH OF MINAMI TORI SHIMA, HAS TRACKED EASTWARD AT 07
KNOTS OVER THE PAST SIX HOURS. ANIMATED SHORTWAVE INFRARED (SWIR) SATELLITE IMAGERY SHOWS A FULLY EXPOSED, INCREASINGLY ELONGATED, LOW LEVEL CIRCULATION CENTER (LLCC). EARLIER CONVECTIVE ACTIVITY IN THE NORTHEASTERN QUADRANT HAS FULLY DISSIPATED AND THE STRUCTURE OF THE VORTEX IS NOW CONSTRICTED TO LOW- TO MID-LEVEL CLOUDS ONLY. THE SYSTEM IS TRACKING EASTWARD ALONG THE NORTHWESTERN FLANK OF BELT OF RIDGING EXTENDING FROM A NEAR EQUATORIAL RIDGE (NER) TO THE SOUTHWEST AND AN EXTENSION OF A SUBTROPICAL RIDGE (STR) TO THE EAST. PERSISTENT STRONG WESTERLY SHEAR AND INCREASING DRY AIR ENTRAINMENT WILL HASTEN THE WEAKENING TREND, LEADING TO DISSIPATION OF THE SYSTEM WITHIN THE NEXT 12 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. MINIMUM CENTRAL PRESSURE AT 141200Z IS 999
MB. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 141200Z IS 10 FEET.
FOR SIX-HOURLY UPDATES.
//
1626081106 212N1379E 20
1626081112 215N1392E 20
1626081118 218N1408E 20
1626081200 218N1419E 30
1626081206 220N1435E 30
1626081212 230N1448E 30
1626081218 247N1464E 30
1626081300 265N1480E 35
1626081306 273N1497E 35
1626081312 275N1509E 35
1626081318 283N1521E 35
1626081400 284N1533E 30
1626081406 284N1537E 30
1626081412 283N1545E 25
NNNN

Original Message :

WTPN31 PGTW 141400
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL DEPRESSION 16W (NANGKA) WARNING NR 009//
RMKS/
1. TROPICAL DEPRESSION 16W (NANGKA) WARNING NR 009
02 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
WIND RADII VALID OVER OPEN WATER ONLY
---
WARNING POSITION:
141200Z --- NEAR 28.3N 154.5E
MOVEMENT PAST SIX HOURS - 100 DEGREES AT 07 KTS
POSITION ACCURATE TO WITHIN 040 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: 28.3N 154.5E
---
FORECASTS:
12 HRS, VALID AT:
150000Z --- 28.2N 156.2E
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: 080 DEG/ 09 KTS
---
24 HRS, VALID AT:
151200Z --- 28.5N 158.2E
MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT
WIND RADII VALID OVER OPEN WATER ONLY
DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
---
REMARKS:
141500Z POSITION NEAR 28.3N 154.9E.
14AUG26. TROPICAL DEPRESSION 16W (NANGKA), LOCATED APPROXIMATELY
247 NM NORTH OF MINAMI TORI SHIMA, HAS TRACKED EASTWARD AT 07
KNOTS OVER THE PAST SIX HOURS. ANIMATED SHORTWAVE INFRARED (SWIR)
SATELLITE IMAGERY SHOWS A FULLY EXPOSED, INCREASINGLY ELONGATED, LOW
LEVEL CIRCULATION CENTER (LLCC). EARLIER CONVECTIVE ACTIVITY IN THE
NORTHEASTERN QUADRANT HAS FULLY DISSIPATED, AND THE STRUCTURE OF THE
VORTEX IS NOW CONSTRICTED TO LOW- TO MID-LEVEL CLOUDS ONLY. THE SYSTEM
IS TRACKING EASTWARD ALONG THE NORTHWESTERN FLANK OF A BELT OF RIDGING
EXTENDING FROM A NEAR EQUATORIAL RIDGE (NER) TO THE SOUTHWEST AND AN
EXTENSION OF A SUBTROPICAL RIDGE (STR) TO THE EAST. PERSISTENT STRONG
WESTERLY SHEAR AND INCREASING DRY AIR ENTRAINMENT WILL HASTEN THE
WEAKENING TREND, LEADING TO THE DISSIPATION OF THE SYSTEM WITHIN THE
NEXT 12 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. MINIMUM CENTRAL PRESSURE AT 141200Z IS 999
MB. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 141200Z IS 10 FEET. REFER TO
TROPICAL DEPRESSION 13W (PEILOU) FINAL WARNING (WTPN32 PGTW).//
NNNN

Original Message :

WTPN31 PGTW 132100
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL STORM 16W (NANGKA) WARNING NR 006//
RMKS/
1. TROPICAL STORM 16W (NANGKA) WARNING NR 006
02 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
WIND RADII VALID OVER OPEN WATER ONLY
---
WARNING POSITION:
131800Z --- NEAR 28.3N 152.4E
MOVEMENT PAST SIX HOURS - 060 DEGREES AT 15 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 - 075 NM NORTHEAST QUADRANT
070 NM SOUTHEAST QUADRANT
050 NM SOUTHWEST QUADRANT
060 NM NORTHWEST QUADRANT
REPEAT POSIT: 28.3N 152.4E
---
FORECASTS:
12 HRS, VALID AT:
140600Z --- 28.5N 154.2E
MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
WIND RADII VALID OVER OPEN WATER ONLY
VECTOR TO 24 HR POSIT: 080 DEG/ 06 KTS
---
24 HRS, VALID AT:
141800Z --- 28.7N 155.5E
MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
WIND RADII VALID OVER OPEN WATER ONLY
VECTOR TO 36 HR POSIT: 080 DEG/ 07 KTS
---
36 HRS, VALID AT:
150600Z --- 29.0N 157.1E
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 48 HR POSIT: 080 DEG/ 05 KTS
---
EXTENDED OUTLOOK:
48 HRS, VALID AT:
151800Z --- 29.2N 158.2E
MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT
WIND RADII VALID OVER OPEN WATER ONLY
DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
---
REMARKS:
132100Z POSITION NEAR 28.4N 152.9E.
13AUG26. TROPICAL STORM 16W (NANGKA), LOCATED APPROXIMATELY 261
NM NORTH-NORTHWEST OF MINAMI TORI SHIMA, HAS TRACKED EAST-
NORTHEASTWARD AT 15 KNOTS OVER THE PAST SIX HOURS. MINIMUM CENTRAL
PRESSURE AT 131800Z IS 995 MB. MAXIMUM SIGNIFICANT WAVE HEIGHT AT
131800Z IS 13 FEET. NEXT WARNINGS AT 140300Z, 140900Z, 141500Z AND
142100Z.
REFER TO TROPICAL DEPRESSION 13W (PEILOU) FINAL WARNING
(WTPN32 PGTW).//
NNNN

Original Message :

WTPN51 PGTW 132100
WARNING ATCG MIL 16W NWP 260813200401
2026081318 16W NANGKA 006 02 060 15 SATL 060
T000 283N 1524E 035 R034 075 NE QD 070 SE QD 050 SW QD 060 NW QD
T012 285N 1542E 030
T024 287N 1555E 030
T036 290N 1571E 025
T048 292N 1582E 020
AMP
036HR DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
048HR DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
SUBJ: TROPICAL STORM 16W (NANGKA) WARNING NR 006
1. TROPICAL STORM 16W (NANGKA) WARNING NR 006
02 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
WIND RADII VALID OVER OPEN WATER ONLY
---
WARNING POSITION:
131800Z --- NEAR 28.3N 152.4E
MOVEMENT PAST SIX HOURS - 060 DEGREES AT 15 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 - 075 NM NORTHEAST QUADRANT
070 NM SOUTHEAST QUADRANT
050 NM SOUTHWEST QUADRANT
060 NM NORTHWEST QUADRANT
REPEAT POSIT: 28.3N 152.4E
---
FORECASTS:
12 HRS, VALID AT:
140600Z --- 28.5N 154.2E
MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
WIND RADII VALID OVER OPEN WATER ONLY
VECTOR TO 24 HR POSIT: 080 DEG/ 06 KTS
---
24 HRS, VALID AT:
141800Z --- 28.7N 155.5E
MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
WIND RADII VALID OVER OPEN WATER ONLY
VECTOR TO 36 HR POSIT: 080 DEG/ 07 KTS
---
36 HRS, VALID AT:
150600Z --- 29.0N 157.1E
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 48 HR POSIT: 080 DEG/ 05 KTS
---
EXTENDED OUTLOOK:
48 HRS, VALID AT:
151800Z --- 29.2N 158.2E
MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT
WIND RADII VALID OVER OPEN WATER ONLY
DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
---
REMARKS:
132100Z POSITION NEAR 28.4N 152.9E.
13AUG26. TROPICAL STORM 16W (NANGKA), LOCATED APPROXIMATELY 261
NM NORTH-NORTHWEST OF MINAMI TORI SHIMA, HAS TRACKED EAST-
NORTHEASTWARD AT 15 KNOTS OVER THE PAST SIX HOURS.
MINIMUM CENTRAL PRESSURE AT 131800Z IS 995 MB. MAXIMUM
SIGNIFICANT WAVE HEIGHT AT 131800Z IS 13 FEET. NEXT WARNINGS AT
140300Z, 140900Z, 141500Z AND 142100Z.
FOR SIX-HOURLY UPDATES.
//
1626081106 212N1379E 20
1626081112 215N1392E 20
1626081118 218N1408E 20
1626081200 218N1419E 30
1626081206 220N1435E 30
1626081212 230N1448E 30
1626081218 247N1464E 30
1626081300 265N1480E 35
1626081306 273N1497E 35
1626081312 275N1509E 35
1626081318 283N1524E 35
NNNN

0000228700
00001

Original Message :

WTPN51 PGTW 131500
WARNING ATCG MIL 16W NWP 260813140919
2026081312 16W NANGKA 005 02 070 13 SATL 060
T000 280N 1510E 035 R034 065 NE QD 050 SE QD 060 SW QD 000 NW QD
T012 285N 1530E 030
T024 289N 1545E 030
T036 293N 1556E 025
T048 298N 1562E 020
AMP
024HR DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
036HR DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
048HR DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
SUBJ: TROPICAL STORM 16W (NANGKA) WARNING NR 005
1. TROPICAL STORM 16W (NANGKA) WARNING NR 005
02 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
WIND RADII VALID OVER OPEN WATER ONLY
---
WARNING POSITION:
131200Z --- NEAR 28.0N 151.0E
MOVEMENT PAST SIX HOURS - 070 DEGREES AT 13 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 - 065 NM NORTHEAST QUADRANT
050 NM SOUTHEAST QUADRANT
060 NM SOUTHWEST QUADRANT
000 NM NORTHWEST QUADRANT
REPEAT POSIT: 28.0N 151.0E
---
FORECASTS:
12 HRS, VALID AT:
140000Z --- 28.5N 153.0E
MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
WIND RADII VALID OVER OPEN WATER ONLY
VECTOR TO 24 HR POSIT: 075 DEG/ 07 KTS
---
24 HRS, VALID AT:
141200Z --- 28.9N 154.5E
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 36 HR POSIT: 065 DEG/ 05 KTS
---
36 HRS, VALID AT:
150000Z --- 29.3N 155.6E
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 48 HR POSIT: 045 DEG/ 04 KTS
---
EXTENDED OUTLOOK:
48 HRS, VALID AT:
151200Z --- 29.8N 156.2E
MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT
WIND RADII VALID OVER OPEN WATER ONLY
DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
---
REMARKS:
131500Z POSITION NEAR 28.1N 151.5E.
13AUG26. TROPICAL STORM 16W (NANGKA), LOCATED APPROXIMATELY 555
NM EAST-NORTHEAST OF IWO TO, HAS TRACKED EAST-NORTHEASTWARD AT 13
KNOTS OVER THE PAST SIX HOURS.
MINIMUM CENTRAL PRESSURE AT 131200Z IS 995 MB. MAXIMUM
SIGNIFICANT WAVE HEIGHT AT 131200Z IS 13 FEET. NEXT WARNINGS AT
132100Z, 140300Z, 140900Z AND 141500Z.
FOR SIX-HOURLY UPDATES.
//
1626081106 212N1379E 20
1626081112 215N1392E 20
1626081118 218N1408E 20
1626081200 218N1419E 30
1626081206 220N1435E 30
1626081212 230N1448E 30
1626081218 247N1464E 30
1626081300 265N1480E 35
1626081306 275N1496E 35
1626081312 280N1510E 35
NNNN

Original Message :

WTPN31 PGTW 131500
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL STORM 16W (NANGKA) WARNING NR 005//
RMKS/
1. TROPICAL STORM 16W (NANGKA) WARNING NR 005
02 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
WIND RADII VALID OVER OPEN WATER ONLY
---
WARNING POSITION:
131200Z --- NEAR 28.0N 151.0E
MOVEMENT PAST SIX HOURS - 070 DEGREES AT 13 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 - 065 NM NORTHEAST QUADRANT
050 NM SOUTHEAST QUADRANT
060 NM SOUTHWEST QUADRANT
000 NM NORTHWEST QUADRANT
REPEAT POSIT: 28.0N 151.0E
---
FORECASTS:
12 HRS, VALID AT:
140000Z --- 28.5N 153.0E
MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
WIND RADII VALID OVER OPEN WATER ONLY
VECTOR TO 24 HR POSIT: 075 DEG/ 07 KTS
---
24 HRS, VALID AT:
141200Z --- 28.9N 154.5E
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 36 HR POSIT: 065 DEG/ 05 KTS
---
36 HRS, VALID AT:
150000Z --- 29.3N 155.6E
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 48 HR POSIT: 045 DEG/ 04 KTS
---
EXTENDED OUTLOOK:
// END PART 01 //

Original Message :

WTPQ31 PGUM 122112
TCPPQ1

BULLETIN
Tropical Depression Nangka (16W) Advisory Number 2
National Weather Service Tiyan GU WP162026
712 AM ChST Thu Aug 13 2026

...TROPICAL DEPRESSION NANGKA MOVING RAPIDLY NORTHEAST...

CHANGES WITH THIS ADVISORY
--------------------------
None.

WATCHES AND WARNINGS
--------------------
None.

SUMMARY OF 700 AM CHST...2100 UTC...INFORMATION
-----------------------------------------------
Location...25.2N 147.1E

About 365 miles east of Iwo To
About 495 miles north of Pagan
About 700 miles north of Saipan
About 710 miles north of Tinian
About 770 miles north of Rota
About 820 miles north of Guam

Maximum sustained winds...35 mph
Present movement...northeast...40 degrees at 25 mph

DISCUSSION AND OUTLOOK
----------------------
At 700 AM CHST...2100 UTC...the center of Tropical Depression
Nangka was located near Latitude 25.2 degrees North and Longitude
147.1 degrees East. Nangka is moving northeast at 25 mph. It is
expected to make a slight turn toward the east-northeast with a
decrease in forward speed through Friday.

Maximum sustained winds remain at 35 mph. Nangka is forecast to
maintain around this intensity through tonight.

NEXT ADVISORY
-------------
This will be the last advisory issued by the National Weather
Service on Nangka.

$$

Whisnant

Original Message :

WTPN31 PGTW 122100
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL DEPRESSION 16W (NANGKA) WARNING NR 002 RELOCATED//
RMKS/
1. TROPICAL DEPRESSION 16W (NANGKA) WARNING NR 002 RELOCATED
02 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
WIND RADII VALID OVER OPEN WATER ONLY
---
WARNING POSITION:
121800Z --- NEAR 24.7N 146.4E
MOVEMENT PAST SIX HOURS - 040 DEGREES AT 22 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: 24.7N 146.4E
---
FORECASTS:
12 HRS, VALID AT:
130600Z --- 26.9N 149.3E
MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
WIND RADII VALID OVER OPEN WATER ONLY
VECTOR TO 24 HR POSIT: 060 DEG/ 12 KTS
---
24 HRS, VALID AT:
131800Z --- 28.1N 151.7E
MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
WIND RADII VALID OVER OPEN WATER ONLY
VECTOR TO 36 HR POSIT: 080 DEG/ 08 KTS
---
36 HRS, VALID AT:
140600Z --- 28.4N 153.5E
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 48 HR POSIT: 085 DEG/ 08 KTS
---
EXTENDED OUTLOOK:
48 HRS, VALID AT:
141800Z --- 28.6N 155.4E
MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT
WIND RADII VALID OVER OPEN WATER ONLY
DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
---
REMARKS:
122100Z POSITION NEAR 25.2N 147.1E.
12AUG26. TROPICAL DEPRESSION 16W (NANGKA), LOCATED APPROXIMATELY
278 NM EAST OF IWO TO, HAS TRACKED NORTHEASTWARD AT 22 KNOTS OVER
THE PAST SIX HOURS.
MINIMUM CENTRAL PRESSURE AT 121800Z IS 998 MB. MAXIMUM
SIGNIFICANT WAVE HEIGHT AT 121800Z IS 16 FEET. NEXT WARNINGS AT
130300Z, 130900Z, 131500Z AND 132100Z.
REFER TO TROPICAL DEPRESSION 13W (PEILOU) WARNINGS (WTPN32 PGTW)
FOR SIX-HOURLY UPDATES.//
NNNN

Original Message :

WTPN51 PGTW 122100
WARNING ATCG MIL 16W NWP 260812194006
2026081218 16W NANGKA 002A 02 040 22 SATL 060
T000 247N 1464E 030
T012 269N 1493E 030
T024 281N 1517E 030
T036 284N 1535E 025
T048 286N 1554E 020
AMP
036HR DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
048HR DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
SUBJ: TROPICAL DEPRESSION 16W (NANGKA) WARNING NR 002 RELOCATED
1. TROPICAL DEPRESSION 16W (NANGKA) WARNING NR 002 RELOCATED
02 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
WIND RADII VALID OVER OPEN WATER ONLY
---
WARNING POSITION:
121800Z --- NEAR 24.7N 146.4E
MOVEMENT PAST SIX HOURS - 040 DEGREES AT 22 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: 24.7N 146.4E
---
FORECASTS:
12 HRS, VALID AT:
130600Z --- 26.9N 149.3E
MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
WIND RADII VALID OVER OPEN WATER ONLY
VECTOR TO 24 HR POSIT: 060 DEG/ 12 KTS
---
24 HRS, VALID AT:
131800Z --- 28.1N 151.7E
MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
WIND RADII VALID OVER OPEN WATER ONLY
VECTOR TO 36 HR POSIT: 080 DEG/ 08 KTS
---
36 HRS, VALID AT:
140600Z --- 28.4N 153.5E
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 48 HR POSIT: 085 DEG/ 08 KTS
---
EXTENDED OUTLOOK:
48 HRS, VALID AT:
141800Z --- 28.6N 155.4E
MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT
WIND RADII VALID OVER OPEN WATER ONLY
DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
---
REMARKS:
122100Z POSITION NEAR 25.2N 147.1E.
12AUG26. TROPICAL DEPRESSION 16W (NANGKA), LOCATED APPROXIMATELY
278 NM EAST OF IWO TO, HAS TRACKED NORTHEASTWARD AT 22 KNOTS OVER
THE PAST SIX HOURS.
MINIMUM CENTRAL PRESSURE AT 121800Z IS 998 MB. MAXIMUM
SIGNIFICANT WAVE HEIGHT AT 121800Z IS 16 FEET. NEXT WARNINGS AT
130300Z, 130900Z, 131500Z AND 132100Z.
FOR SIX-HOURLY UPDATES.
//
1626081106 212N1379E 20
1626081112 215N1392E 20
1626081118 218N1408E 20
1626081200 218N1419E 30
1626081206 220N1435E 30
1626081212 230N1448E 30
1626081218 247N1464E 30
NNNN

Original Message :

WTPQ31 PGUM 121507
TCPPQ1

BULLETIN
Tropical Depression Nangka (16W) Advisory Number 1
National Weather Service Tiyan GU WP162026
107 AM ChST Thu Aug 13 2026

...TROPICAL DEPRESSION 16W FORMS EAST-SOUTHEAST OF IWO TO...

CHANGES WITH THIS ADVISORY
--------------------------
TD Nangka (16W) has formed.

WATCHES AND WARNINGS
--------------------
None.

SUMMARY OF 100 AM CHST...1500 UTC...INFORMATION
-----------------------------------------------
Location...23.3N 145.1E

About 260 miles east-southeast of Iwo To
About 315 miles north of Agrihan
About 360 miles north of Pagan
About 395 miles north of Alamagan
About 480 miles north of Anatahan
About 565 miles north of Saipan
About 575 miles north of Tinian
About 630 miles north of Rota
About 680 miles north of Guam

Maximum sustained winds...35 mph
Present movement...northeast...50 degrees at 21 mph

DISCUSSION AND OUTLOOK
----------------------
At 100 AM CHST...1500 UTC...the center of Tropical Depression
Nangka was located near Latitude 23.3 degrees North and Longitude
145.1 degrees East. Nangka (formerly Invest 91W) is moving
northeast at 21 mph. It is expected to maintain this general
course with a dramatic decrease in forward speed through Friday.
Nangka continues moving away from the Marianas, likely moving
north of 25N and exiting our region tonight.

Maximum sustained winds are 35 mph. Nangka is forecast to
intensify through Friday possibly becoming a tropical storm later
this morning.

NEXT ADVISORY
-------------
The next scheduled advisory will be issued by the National
Weather Service at 800 AM ChST.

$$

Cruz

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