Public Tropical Cyclone Advisory
Issued by NWS
Issued by NWS
481 WTPQ32 PGUM 022118 TCPPQ2 BULLETIN Typhoon Choi-wan (26W) Advisory Number 12 National Weather Service Tiyan GU WP262026 718 AM ChST Sat Oct 3 2026 ...TYPHOON CHOI-WAN MOVING NORTH AND SWINGING PAST PAGAN... CHANGES WITH THIS ADVISORY -------------------------- None. WATCHES AND WARNINGS -------------------- A Typhoon Warning remains in effect for Alamagan, Agrihan, and Pagan in the CNMI. A Tropical Storm Warning remains in effect for Tinian and Saipan in the CNMI. A Typhoon Warning means that typhoon conditions are expected, including winds of 74 mph or more, with tropical storm force winds beginning within 24 hours. A Tropical Storm Warning means that tropical storm conditions, including winds of 39 to 73 mph, are expected within 24 hours. SUMMARY OF 700 AM CHST...2100 UTC...INFORMATION ----------------------------------------------- Location...18.4N 144.9E About 55 miles west-southwest of Agrihan About 60 miles west-northwest of Pagan About 80 miles northwest of Alamagan About 150 miles north-northwest of Anatahan About 235 miles north-northwest of Saipan About 240 miles north of Tinian About 295 miles north of Rota About 340 miles north of Guam Maximum sustained winds...85 mph Present movement...north...10 degrees at 6 mph DISCUSSION AND OUTLOOK ---------------------- At 700 AM CHST...2100 UTC...the center of Typhoon Choi-wan was located near Latitude 18.4 degrees North and Longitude 144.9 degrees East. Choi-wan is moving north at 6 mph. It is expected to make a slight turn toward the north-northeast with a slight increase in forward speed through Sunday, passing to the west of Pagan shortly. Maximum sustained winds have increased to 85 mph. Choi-wan is forecast to intensify through tonight, becoming Category 2 as it passes Agrihan today, then Category 3 tonight as it moves away. Typhoon force winds extend outward from the center up to 110 miles to the south and up to 50 miles to the north. Tropical storm force winds extend outward from the center up to 240 miles to the south and up to 175 miles to the north. NEXT ADVISORY ------------- An intermediate advisory will be issued by the National Weather Service in Tiyan, Guam at 1100 AM ChST later this morning, followed by the next scheduled advisory at 200 PM ChST this afternoon. $$ Montvila