WTPQ32 PGUM 161913 TCPPQ2 BULLETIN Tropical Storm Champi (29W) Intermediate Advisory Number 9A National Weather Service Tiyan GU WP292026 513 AM ChST Sat Oct 17 2026 ...TROPICAL STORM CHAMPI MOVING WEST TOWARD GUAM... CHANGES WITH THIS ADVISORY -------------------------- None. WATCHES AND WARNINGS -------------------- A Typhoon Warning remains in effect for Guam, Rota, and the adjacent waters. A Tropical Storm Warning remains in effect for Tinian, Saipan, and the adjacent waters. A Typhoon Watch remains in effect for Tinian and Saipan in the Northern Marianas, and the adjacent coastal waters. A Typhoon Warning means that typhoon conditions, including winds of 74 mph or more, are expected by Sunday morning, with tropical storm force winds arriving tonight. A Tropical Storm Warning in conjunction with a Typhoon Watch means that tropical storm winds of between 39 and 73 mph are expected by tonight, and typhoon force winds are possible if the track of Tropical Storm Champi shifts sufficiently northward. SUMMARY OF 400 AM CHST...1800 UTC...INFORMATION ----------------------------------------------- Location...11.9N 150.2E About 230 miles north of Ulul About 325 miles north-northwest of Chuuk About 370 miles east-southeast of Rota About 375 miles southeast of Tinian About 375 miles southeast of Saipan About 380 miles east-southeast of Guam About 490 miles southeast of Alamagan About 520 miles southeast of Pagan About 560 miles south-southeast of Agrihan About 840 miles east-northeast of Yap Maximum sustained winds...70 mph Present movement...west...275 degrees at 15 mph DISCUSSION AND OUTLOOK ---------------------- At 400 AM CHST...1800 UTC...the center of Tropical Storm Champi was located near Latitude 11.9 degrees North and Longitude 150.2 degrees East. Champi is moving west at 15 mph. It is expected to turn slightly toward the west-northwest with little change in forward speed through Sunday. This general forecast track will take Champi just south of Guam as a category 3 typhoon. Maximum sustained winds remain at 70 mph. Champi is forecast to intensify through Sunday likely becoming a typhoon within the next few hours. Tropical storm force winds extend outward from the center up to 105 miles. NEXT ADVISORY ------------- The next scheduled advisory will be issued by the National Weather Service at 800 AM ChST followed by an intermediate advisory at 500 AM ChST. $$ Stanko