Severe Hurricane / Cyclone / Typhoon ● Closed
Tropical Storm Watch issued October 1 at 4:16AM ChST by NWS Tiyan GU, United States of America
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* WHAT...For the Tropical Storm Watch and Small Craft Advisory,
southwest winds 30 to 40 kt with gusts up to 55 kt and seas 11 to
16 feet expected.
* WHERE...Tinian and Saipan Coastal Waters.
* WHEN...For the Small Craft Advisory, from 5 PM Thursday to 5 PM
ChST Sunday. For the Tropical Storm Watch, beginning Thursday
evening.
* IMPACTS...Tropical storm force winds will cause hazardous seas
which could capsize or damage vessels and reduce visibility.
* ADDITIONAL DETAILS...Tropical Storm 26W continues to
develop as it moves westward towards Anatahan and Alamagan.
Tropical storm force winds may expand southward over
Saipan and Tinian Thursday evening. Seas will become hazardous
to small craft by Thursday afternoon and could become hazardous
by Thursday night.
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 | Future |
| Cap Certainty | Possible |
| Cap Expires | 2026-10-01T18:30:00+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 19 days ago (Sep 30, 2026 18:18 UTC) · we last heard from WMO Alert Hub (national weather services) 51 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
Follow the instructions issued by WMO Alert Hub (national weather services) and your local emergency services. The guidance below is background.
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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