WTPQ31 PGUM 161600
TCPPQ1

BULLETIN
Typhoon Sinlaku (04W) Advisory Number 31
National Weather Service Tiyan GU WP042026
200 AM ChST Fri Apr 17 2026

...TYPHOON SINLAKU MOVING NORTH-NORTHEAST THROUGH THE NORTHERN CNMI 
TO THE WEST OF AGRIHAN...

CHANGES WITH THIS ADVISORY
--------------------------
The Typhoon Warning has been cancelled for coastal waters and the 
island of Rota.

WATCHES AND WARNINGS
--------------------
A Typhoon Warning is no longer in effect for the island and the
coastal waters of Rota.
A Typhoon Warning remains in effect for Tinian, Saipan, 
Alamagan, Pagan, and Agrihan in the CNMI and the adjacent coastal
waters.

SUMMARY OF 100 AM CHST...1500 UTC...INFORMATION
-----------------------------------------------
Location...18.7N 144.9E

About 50 miles west of Agrihan
About 70 miles northwest of Pagan
About 95 miles northwest of Alamagan
About 255 miles north-northwest of Saipan
About 260 miles north of Tinian
About 315 miles north of Rota
About 360 miles north of Guam

Maximum sustained winds...105 mph
Present movement...north-northeast...20 degrees at 9 mph

DISCUSSION AND OUTLOOK
----------------------
At 100 AM CHST...1500 UTC...the center of Typhoon Sinlaku was 
located near Latitude 18.7 degrees North and Longitude 144.9 degrees 
East. Sinlaku is moving north-northeast at 9 mph. It is expected to 
maintain this general course and speed through Saturday. Typhoon 
Sinlaku continues to move through the northern CNMI just west of 
Agrihan, turning more to the northeast as it passes north of Agrihan 
this afternoon.

Maximum sustained winds have decreased to 105 mph. Sinlaku is
forecast to weaken through Saturday.

Typhoon force winds extend outward from the center up to
90 miles. Tropical storm force winds extend outward from the
center up to 290 miles to the northeast and up to 255 miles
elsewhere.

NEXT ADVISORY
-------------
An intermediate advisory will be issued by the National Weather
Service at 500 AM ChST followed by the next scheduled advisory at
800 AM ChST.

$$

Williams