WTPQ32 PGUM 011005 CCA TCPPQ2 BULLETIN...CORRECTED Tropical Storm Choi-wan (26W) Advisory Number 6 National Weather Service Tiyan GU WP262026 805 PM ChST Thu Oct 1 2026 ...TROPICAL STORM CHOI-WAN MOVING WEST INTO THE NORTHERN MARIANAS... Corrected typo in Discussion. CHANGES WITH THIS ADVISORY -------------------------- None. WATCHES AND WARNINGS -------------------- A Tropical Storm Warning remains in effect for Tinian, Saipan, Alamagan, Pagan, and Agrihan in the CNMI. A Typhoon Watch remains in effect for Alamagan, Pagan, and Agrihan in the CNMI. A Typhoon Watch means that typhoon conditions, including winds of 74 mph or more, are possible within 48 hours. A Tropical Storm Warning means that tropical storm conditions are expected within 24 hours. SUMMARY OF 700 PM CHST...0900 UTC...INFORMATION ----------------------------------------------- Location...17.0N 146.4E About 55 miles southeast of Alamagan About 65 miles northeast of Anatahan About 90 miles south-southeast of Pagan About 130 miles south-southeast of Agrihan About 135 miles north-northeast of Saipan About 150 miles north-northeast of Tinian About 210 miles north-northeast of Rota About 265 miles north-northeast of Guam Maximum sustained winds...45 mph Present movement...west...280 degrees at 13 mph DISCUSSION AND OUTLOOK ---------------------- At 700 PM CHST...0900 UTC...the center of Tropical Storm Choi-wan was located near Latitude 17.0 degrees North and Longitude 146.4 degrees East. Choi-wan is moving west at 13 mph. It is expected to slow slightly as it continues westward overnight, with the center passing to the south of Alamagan early Friday morning. It is then expected to make a turn toward the northwest, then north with a decrease in forward speed through Friday. Then, Choi-wan looks to gradually turn to the north-northeast on Saturday after it emerges west of the northern islands. Maximum sustained winds remain at 45 mph. Choi-wan is forecast to intensify through Friday, potentially becoming a typhoon late Friday night or early Saturday morning. Tropical storm force winds extend outward from the center up to 140 miles to the northeast and up to 105 miles elsewhere. NEXT ADVISORY ------------- An intermediate advisory will be issued by the National Weather Service at 1100 PM ChST followed by the next scheduled advisory at 200 AM ChST early Friday morning. $$ DeCou