Severe Hurricane / Cyclone / Typhoon ● Monitoring
Typhoon Watch issued October 16 at 12:25AM ChST by NWS Tiyan GU, United States of America
Loading live data… · Marker positions are approximate; severity is labelled in each popup. Sources: USGS, GDACS, NASA EONET, NOAA/NWS, EMSC.
* WHAT...Typhoon conditions, including winds of 64 knots or more
are possible within the next 48 hours.
* WHERE...Guam, Rota, Tinian and Saipan Coastal Waters.
* WHEN...Through at least Sunday night, possibly longer if
conditions warrant.
* IMPACTS...Destructive winds will produce dangerous seas that
could damage, capsize or sink vessels, along with drastically
reducing visibilities in heavy rain.
* ADDITIONAL DETAILS...Tropical Storm Champi (29W) is still moving
toward the Marianas. The exact path of 29W remains subject to
change, however, it is expected to pass through the coastal waters
over the weekend. TS 29W is expected to strengthen further today
as it approaches, moving through the region as at least a category
1 typhoon, but more likely stronger.
Measurements
| Coordinates | 39.9645, -100.8105 |
|---|---|
| Region | Guam Coastal Waters; Rota Coastal Waters; 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 | 2026-10-16T16:00:00+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 4 days ago (Oct 15, 2026 14:26 UTC) · we last heard from WMO Alert Hub (national weather services) 52 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: Guam Coastal Waters; Rota Coastal Waters; 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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