Super Typhoon Sinlaku’s Eyewall Hits Tinian and Saipan; Guam Avoids Direct Strike but Suffers Tropical-Storm Conditions

Super Typhoon Sinlaku’s inner eyewall moved over the Northern Mariana Islands of Tinian and Saipan late Monday night local time (about 10:15 p.m. local / 8:15 a.m. ET), producing sustained winds near 130 mph at the time of landfall on those islands. The storm was far stronger over open ocean, peaking near 180 mph before stabilizing around 175 mph, with typhoon‑force winds extending roughly 80 miles from the center and tropical‑storm‑force winds out to about 275 miles. Typhoon warnings were in effect for Rota, Tinian and Saipan, with tropical‑storm and typhoon watches and warnings covering Guam and nearby northern islands; Guam escaped a direct eyewall strike but was lashed by heavy rain and tropical‑storm‑force gusts — authorities reported gusts in the 60–80 mph range, widespread power outages, school closures and an extended period of hazardous wind and surf through midweek.

Federal and local emergency operations were mobilized before and during the event: the president approved emergency disaster declarations for Guam and the Northern Marianas, and FEMA said it had nearly 100 staff and interagency teams staging support alongside U.S. military assets on the ground despite staffing and funding constraints tied to a prolonged Department of Homeland Security shutdown. The Northern Marianas’ vulnerability to high‑cost storms is well‑documented — the islands average roughly six typhoons a year and past storms such as Soudelor (2015) and the paired impacts of Mangkhut and Yutu in 2018 produced tens of millions of dollars in damage and lost economic activity — a history that highlights how even a near‑miss can inflict serious infrastructure and economic harm, especially as warmer ocean conditions are expected to make the strongest Pacific typhoons more intense over coming decades.

Coverage of Sinlaku shifted as new observations came in: early bulletins emphasized that Guam would not experience typhoon‑force winds and described conditions there as primarily tropical‑storm level, but later reporting from outlets including The New York Times and subsequent CBS updates, along with local Joint Information Center advisories, clarified that Guam would avoid a direct eyewall hit yet still face an extended, hazardous period of tropical‑storm‑force winds and localized flooding and outages. That evolution was reflected on social media as well, where meteorologists urged sheltering in robust structures, commenters flagged radar blind spots that complicate tracking, and others noted the likely use of drones and AI for rapid post‑storm damage assessment — framing both the immediate human safety priorities and the logistical challenges for response and recovery.