WTPQ31 PGUM 172114 TCPPQ1 BULLETIN Typhoon Sinlaku (04W) Advisory Number 36 National Weather Service Tiyan GU WP042026 714 AM ChST Sat Apr 18 2026 ...TYPHOON SINLAKU MOVING NORTHEAST AWAY FROM THE FAR NORTHERN MARIANAS... CHANGES WITH THIS ADVISORY -------------------------- None. WATCHES AND WARNINGS -------------------- A Typhoon Warning remains in effect for Agrihan in the CNMI and the adjacent coastal waters. SUMMARY OF 700 AM CHST...2100 UTC...INFORMATION ----------------------------------------------- Location...21.8N 146.7E About 220 miles north-northeast of Agrihan About 260 miles north-northeast of Pagan About 295 miles north of Alamagan About 465 miles north of Saipan About 475 miles north of Tinian About 535 miles north of Rota About 590 miles north-northeast of Guam Maximum sustained winds...80 mph Present movement...northeast...35 degrees at 7 mph DISCUSSION AND OUTLOOK ---------------------- At 700 AM CHST...2100 UTC...the center of Typhoon Sinlaku was located near Latitude 21.8 degrees North and Longitude 146.7 degrees East. Sinlaku is moving northeast at 7 mph. It is expected to maintain this general course with an increase in forward speed through Sunday. The latest forecast track and intensity, and overnight satellite scatterometry keep Agrihan on the very outer edge of tropical storm conditions, but a combination of Sinlaku weakening and moving away should allow for sustained winds of 39 mph or greater to end within the next hour or two. Maximum sustained winds have decreased to 80 mph. Sinlaku is forecast to weaken through tonight. Typhoon force winds extend outward from the center up to 70 miles. Tropical storm force winds extend outward from the center up to 270 miles. NEXT ADVISORY ------------- An intermediate advisory will be issued by the National Weather Service at 1100 AM ChST followed by the next scheduled advisory at 200 PM ChST. $$ DeCou