WTPQ31 PGUM 120930
TCPPQ1

BULLETIN
Super Typhoon Sinlaku (04W) Advisory Number 14
National Weather Service Tiyan GU WP042026
730 PM ChST Sun Apr 12 2026

...SINLAKU UPGRADED TO SUPER TYPHOON AND IS MOVING NORTHWEST TOWARD
THE MARIANAS...

CHANGES WITH THIS ADVISORY
--------------------------
Sinlaku is now a super typhoon. 

WATCHES AND WARNINGS
--------------------
A Typhoon Warning remains in effect for Rota, Tinian, and Saipan.
A Typhoon Warning remains in effect for Fananu in Chuuk State. 
A Tropical Storm Warning remains in effect for Guam. 
A Tropical Storm Warning remains in effect for Ulul in Chuuk State.
A Tropical Storm Watch remains in effect for Pagan and Alamagan.
A Typhoon Watch remains in effect for Ulul in Chuuk State.  
A Typhoon Watch remains in effect for Guam.    

Residents of Agrihan should carefully monitor the progress of 
Super Typhoon Sinlaku.

SUMMARY OF 700 PM CHST...0900 UTC...INFORMATION
-----------------------------------------------
Location...10.6N 150.3E

About 145 miles north-northeast of Ulul
About 190 miles northwest of Fananu
About 240 miles north-northwest of Chuuk
About 420 miles east-southeast of Guam
About 420 miles southeast of Rota
About 435 miles southeast of Tinian
About 440 miles southeast of Saipan

Maximum sustained winds...150 mph
Present movement...northwest...310 degrees at 9 mph

DISCUSSION AND OUTLOOK
----------------------
At 700 PM CHST...0900 UTC...the center of Super Typhoon Sinlaku
was located near Latitude 10.6 degrees North and Longitude
150.3 degrees East. Sinlaku is moving northwest at 9 mph. It is
expected to maintain this general course and speed through
through Monday night as it heads towards the Marianas. The onset 
of tropical storm force winds are expected to reach Guam, 
Rota, Tinian, and Saipan Monday night. Typhoon force winds are
expected to start reaching Rota, Tinian, and Saipan Tuesday.

Maximum sustained winds have increased to 150 mph. Sinlaku is
forecast to intensify through Monday. Sinlaku may move into the 
Marianas as a category 4 or 5 typhoon.

Typhoon force winds extend outward from the center up to
60 miles. Tropical storm force winds extend outward from the
center up to 245 miles.

NEXT ADVISORY
-------------
An intermediate advisory will be issued by the National Weather
Service at 1100 PM ChST tonight followed by the next scheduled 
advisory at 200 AM ChST early Monday morning.

$$

Schank