Tropical Storm Warning — Tinian; Saipan was recorded by Global Incident Tracker on Wednesday, 30 September 2026 at 23:10 UTC. The event is classified as a cyclone / hurricane incident with a severity rating of Severe, and was detected through the US National Weather Service (NWS).
Tropical Storm Warning issued October 1 at 9:10AM ChST by NWS Tiyan GU ...NEWLY NAMED TROPICAL STORM CHOI-WAN CONTINUES MOVING WEST- NORTHWEST TOWARDS THE FAR NORTHERN MARIANAS... .NEW INFORMATION... Tropical Storm 26W is now named Choi-wan. A Tropical Storm Warning is now in effect for Tinian and Saipan and their adjacent waters in the CNMI. .AREAS AFFECTED... This local statement provides important information and recommended actions for people in Guam and the Northern Marianas. .WATCHES/WARNINGS... A Tropical Storm Warning is now in effect for Tinian and Saipan in the CNMI. A Tropical Storm Warning remains in effect for Alamagan and Pagan in the CNMI. A Typhoon Watch remains in effect for Alamagan and Pagan in the CNMI. A Tropical Storm Watch remains in effect for Agrihan in the CNMI. A Tropical Storm Watch means that tropical storm conditions, including winds of 39 to 73 mph, are
Where this happened
The incident is located in United States (North America), whose capital is Washington, D.C.. Historically, United States is most affected by hurricanes, wildfires, tornadoes, earthquakes and floods. You can follow every incident recorded in this country, updated live, on the United States incident tracker.
Approximate coordinates of the reported event are 37.100°, -95.700°. The marker on the map above shows this position; for news-derived reports the location reflects the place named in media coverage and may represent a district or city rather than an exact site.
Understanding cyclone / hurricane events
Tropical cyclones, hurricanes and typhoons with damaging wind and surge. Tropical cyclones cause harm through four separate mechanisms: sustained wind, storm surge, inland flooding from rainfall, and tornadoes embedded in outer bands. Historically, storm surge and inland flooding kill far more people than wind.
How severity is rated
Global Incident Tracker rates every event on a four-step scale — Minor, Moderate, Severe and Extreme — derived from the source signal: earthquake magnitude, official GDACS alert colour, or the volume of independent media reporting for news-derived incidents. This event is currently rated Severe. Ratings can change as more information becomes available, and a rating is a monitoring signal rather than an official government assessment.
Safety guidance for cyclone / hurricane situations
- Know whether you are in a storm-surge evacuation zone and leave before roads become impassable.
- Shelter in an interior room away from windows; the eye passing overhead is not the end of the storm.
- Stock water, medication, cash, power banks and documents in a waterproof bag.
- Most cyclone deaths come from water, not wind — take flood warnings as seriously as wind warnings.
- Follow only official instructions from local authorities and emergency services — this page is a monitoring record, not an emergency alert.
Data and verification
This record was generated automatically from the US National Weather Service (NWS) and de-duplicated against our archive. Early reports for any incident can be revised: locations get refined, magnitudes are recalculated and impact figures change as assessments arrive. We deliberately do not publish casualty numbers unless an official source states them. The original source report is linked at the top of this page.
Keep watching the situation on our live world incident map, browse every cyclones and hurricanes we track on the Cyclone / Hurricane tracker, or see today's global picture on the incidents today page.
Timeline and sources
Official warning
Issued by U.S. National Weather Service. A warning or forecast describes a hazard; on its own it is not a report that harm occurred.
How statuses are decided · the number of reports is never treated as confirmation.
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· received · event time 30 Sep 2026, 23:10 UTCFirst report Official warning
First recorded from U.S. National Weather Service.
Times are when this site received each report, in UTC; the event time is shown where the source gave one. Copies of one syndicated story count as one report.
Conditions at the time
No rainfall was recorded that day, and the temperature peaked at 31°C, and winds reached 31 km/h.
Weather reanalysis for this location and date via Open-Meteo.