Overall Green Tropical Cyclone for TWENTYTHREE-26 Off-shore from 04 Sep 2026 12:00 UTC to 05 Sep 2026 00:00 UTC

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Overall Green Tropical Cyclone for TWENTYTHREE-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)

05/09 03:28 WTPQ32PGUM050327CCA

05/09 03:20 WTPQ32PGUM050319

04/09 21:35 WTPQ32PGUM042134

04/09 15:28 WTPQ32PGUM041527

Original Message :

WTPQ32 PGUM 050327 CCA
TCPPQ2

BULLETIN...CORRECTED
Tropical Depression 23W Advisory Number 3
National Weather Service Tiyan GU WP232026
127 PM ChST Sat Sep 5 2026

Corrected TYPO and misspelling.

...TROPICAL DEPRESSION 23W MOVING RAPIDLY NORTH-NORTHWEST...

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

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

SUMMARY OF 100 PM CHST...0300 UTC...INFORMATION
-----------------------------------------------
Location...26.8N 136.0E

About 360 miles west-northwest of Iwo To
About 830 miles northwest of Agrihan
About 1020 miles northwest of Saipan
About 1080 miles north-northwest of Guam

Maximum sustained winds...30 mph
Present movement...north-northwest...335 degrees at 28 mph

DISCUSSION AND OUTLOOK
----------------------
At 100 PM CHST...0300 UTC...the center of Tropical Depression 23W
was located near Latitude 26.8 degrees North and Longitude 136.0
degrees East. 23W is moving north-northwest at 28 mph. It is
expected to maintain this general course with a dramatic decrease in
forward speed through Sunday.

Maximum sustained winds have decreased to 30 mph. 23W is forecast
to maintain this intensity through tonight, then weaken,
possibly dissipating as a significant tropical cyclone some time
Sunday.

NEXT ADVISORY
-------------
This will be the last advisory issued by the National Weather
Service on 23W.

$$

Kleeschulte

Original Message :

WTPQ32 PGUM 050319
TCPPQ2

BULLETIN
Tropical Depression 23W Advisory Number 3
National Weather Service Tiyan GU WP232026
119 PM ChST Sat Sep 5 2026

...TROPICAL DEPRESSION 23W MOVING RAPIDLY NORTH-NORTHWEST...

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

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

SUMMARY OF 100 PM CHST...0300 UTC...INFORMATION
-----------------------------------------------
Location...26.8N 136.0E

About 360 miles west-northwest of Iwo To
About 830 miles northwest of Agrihan
About 1020 miles northwest of Saipan
About 1080 miles north-northwest of Guam

Maximum sustained winds...30 mph
Present movement...north-northwest...335 degrees at 28 mph

DISCUSSION AND OUTLOOK
----------------------
At 100 PM CHST...0300 UTC...the center of Tropical Depression 23W
was located near Latitude 26.8 degrees North and Longitude 136.0
degrees East. 23W is moving north-northwest at 28 mph. It is
expected to maintain this general course with a dramatic decrease in
forward speed through Sunday.

Maximum sustained winds have decreased to 30 mph. 23W is forecast
to maintain this intensity through Saturday night, then weaken,
possibly disipating as a significant tropical cyclone Sunday.

NEXT ADVISORY
-------------
This will be the last advisory issued by the National Weather
Service on 23W.

$$

Kleeschulte

Original Message :

WTPQ32 PGUM 042134
TCPPQ2

BULLETIN
Tropical Depression 23W Advisory Number 2
National Weather Service Tiyan GU WP232026
734 AM ChST Sat Sep 5 2026

...TROPICAL DEPRESSION 23W DOWNGRADED FROM TROPICAL STORM...

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

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

SUMMARY OF 700 AM CHST...2100 UTC...INFORMATION
-----------------------------------------------
Location...24.6N 136.8E

About 285 miles west of Iwo To
About 695 miles northwest of Agrihan
About 875 miles northwest of Saipan
About 925 miles north-northwest of Guam

Maximum sustained winds...35 mph
Present movement...north-northwest...340 degrees at 20 mph

DISCUSSION AND OUTLOOK
----------------------
At 700 AM CHST...2100 UTC...the center of Tropical Depression 23W was
located near Latitude 24.6 degrees North and Longitude 136.8 degrees
East. 23W is moving north-northwest at 20 mph. It is expected to
maintain this general course with a decrease in forward speed through
Monday. This general forecast track will keep 23W over open ocean
through Monday.

Maximum sustained winds have decreased to 35 mph. 23W is forecast to
maintain this intensity through Sunday, then begin to weaken and
could dissipate Monday.

NEXT ADVISORY
-------------
The next scheduled advisory will be issued by the National
Weather Service at 200 PM ChST.

$$

Stanko

Original Message :

WTPQ32 PGUM 041527
TCPPQ2

BULLETIN
Tropical Storm 23W Advisory Number 1
National Weather Service Tiyan GU WP232026
127 AM ChST Sat Sep 5 2026

...TROPICAL STORM 23W FORMS WEST-SOUTHWEST OF IWO TO...

CHANGES WITH THIS ADVISORY
--------------------------
This is the first advisory on Tropical Storm 23W.

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

SUMMARY OF 100 AM CHST...1500 UTC...INFORMATION
-----------------------------------------------
Location...23.1N 137.6E

About 260 miles west-southwest of Iwo To
About 600 miles west-northwest of Agrihan
About 765 miles northwest of Saipan
About 815 miles northwest of Guam
About 940 miles north of Yap

Maximum sustained winds...45 mph
Present movement...north...360 degrees at 21 mph

DISCUSSION AND OUTLOOK
----------------------
At 100 AM CHST...1500 UTC...the center of Tropical Storm 23W was
located near Latitude 23.1 degrees North and Longitude 137.6 degrees
East. 23W is moving north at 21 mph. It is expected to turn toward the
northwest with a dramatic decrease in forward speed through Monday.
This general forecast track will keep 23W over the open ocean south of
Japan.

Maximum sustained winds are 45 mph. 23W is forecast to maintain this
intensity through Sunday, then begin to weaken. 23W could end up
dissipating by Tuesday.

Tropical storm force winds extend outward from the center up to
50 miles to the east with little or no tropical storm force to
the west.

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

$$

Stanko

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