Overall Green Tropical Cyclone for NANGKA-26 Off-shore on 12 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.

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Measurements Levels

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

12/08 15:09 WTPQ31PGUM121507

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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