WTPQ32 PGUM 301610 TCPPQ2 BULLETIN Tropical Storm 26W Advisory Number 3 National Weather Service Tiyan GU WP262026 210 AM ChST Thu Oct 1 2026 ...26W UPGRADED TO TROPICAL STORM AS IT APPROACHES THE NORTHERN CNMI... ...TROPICAL STORM WARNING NOW IN EFFECT FOR ALAMAGAN AND PAGAN... ...TYPHOON WATCH NOW IN EFFECT FOR ALAMAGAN AND PAGAN... CHANGES WITH THIS ADVISORY -------------------------- 26W has been upgraded to a Tropical Storm. A Tropical Storm Warning is now in effect for Alamagan and Pagan in the CNMI. A Typhoon Watch is now in effect for Alamagan and Pagan. A Tropical Storm Watch remains in effect for Tinian, Saipan, and Agrihan in the CNMI. WATCHES AND WARNINGS -------------------- A Tropical Storm Warning is now in effect for Alamagan and Pagan in the CNMI. A Typhoon Watch is now in effect for Alamagan and Pagan. A Tropical Storm Watch remains in effect for Tinian, Saipan, and Agrihan in the CNMI. A Tropical Storm Watch means that tropical storm conditions, including winds of 39 to 73 mph, are possible within 48 hours. 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 100 AM CHST...1500 UTC...INFORMATION ----------------------------------------------- Location...16.1N 150.5E About 320 miles east of Anatahan About 325 miles east-northeast of Saipan About 325 miles east-southeast of Alamagan About 335 miles east-northeast of Tinian About 340 miles east-southeast of Pagan About 365 miles east-southeast of Agrihan About 375 miles east-northeast of Rota About 420 miles east-northeast of Guam Maximum sustained winds...40 mph Present movement...west-northwest...285 degrees at 5 mph DISCUSSION AND OUTLOOK ---------------------- At 100 AM CHST...1500 UTC...the center of Tropical Storm 26W was located near Latitude 16.1 degrees North and Longitude 150.5 degrees East. 26W is moving west-northwest at 5 mph. It is expected to make a slight turn toward the west, then north-northwest, with a slight increase in forward speed through Friday. The latest forecast shows an intensifying 26W will move into the CNMI on Friday, curving north-northeast as it nears Alamagan Friday night as a Category 1 typhoon, then pass near Pagan and east of Agrihan Saturday. Maximum sustained winds have increased to 40 mph. 26W is forecast to intensify through Friday, potentially becoming a typhoon late Friday morning. Tropical storm force winds extend outward from the center up to 100 miles to the northwest. 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. $$ DeCou