Severe Hurricane / Cyclone / Typhoon ● Closed
Tropical Storm Warning issued October 3 at 4:01AM ChST by NWS Tiyan GU, United States of America
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* WHAT...Southwest tropical storm force wind to 45 kt with gusts
to 60 kt and seas 14 to 20 feet.
* WHERE...Tinian and Saipan Coastal Waters.
* WHEN...Until further notice.
* IMPACTS...Very strong winds will cause hazardous seas which
could capsize or damage vessels and reduce visibility.
* ADDITIONAL DETAILS...Typhoon Choi-wan (26W) continues to
strengthen as it turns north-northeast near the northern
Marianas west of Pagan, with tropical storm force winds
continuing at Saipan. Hazardous seas continue.
Measurements
| Coordinates | 39.9645, -100.8105 |
|---|---|
| Region | Tinian Coastal Waters; Saipan Coastal Waters |
| Location Precision | country |
| Issuing Authority | United States of America — us-noaa-nws-en-marine |
| Cap Urgency | Immediate |
| Cap Certainty | Likely |
| Cap Expires | 2026-10-03T18:15:00+10:00 |
Official source
Warnings courtesy of the issuing national meteorological service, via the WMO Alert Hub.
This is an official warning issued by the authority named above. Follow its instructions and those of your local emergency services.
Severity as published by WMO Alert Hub (national weather services).
View original reportThis event as JSON · API and licence
Source updated 17 days ago (Oct 2, 2026 18:02 UTC) · we last heard from WMO Alert Hub (national weather services) 4 seconds ago
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About this location
The agency did not publish coordinates for this warning. The pin is the centre of the country, not the location of the event — read the area name, not the map, for where it applies.
Area as the agency stated it: Tinian Coastal Waters; Saipan Coastal Waters
Official authorities in United States
If you are there, these are the bodies whose instructions apply. This site is not an emergency service and does not issue warnings.
More for United States →What to do
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Preparing for hurricane season, understanding watches vs warnings, storm surge evacuation, and riding out the storm safely.
Open Hurricane Safety Guide →Earlier hurricane / cyclone / typhoon events in United States
Severe and extreme events of the same kind, before this one. Listed for scale, not because they are connected to it.
Nearby & related events
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