Severe Hurricane / Cyclone / Typhoon ● Monitoring
Typhoon Watch issued October 16 at 3:01AM ChST by NWS Tiyan GU, United States of America
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...TROPICAL STORM CHAMPI IS MOVING TOWARD THE MARIANAS...
.NEW INFORMATION...
Champi (29W) has been upgraded to a tropical storm and is moving
west with sustained winds of 40 mph. A Flood Watch has been issued
for the Guam, Rota, Tinian, and Saipan.
.AREAS AFFECTED...
This local statement provides important information and
recommended actions for people in Guam and the Northern Marianas.
.Watches/Warnings...
A Typhoon Watch continues for Guam, Rota, Tinian, and Saipan.
A Flood Watch is now in effect for Guam, Rota, Tinian, and Saipan.
.STORM INFORMATION...
At 1 AM ChST...the center of Tropical Storm Champi (29W) was
located near latitude 11.1N...longitude 156.8E. This was about 820
miles east of Guam. Storm motion was west, 280 degrees, at 12
mph. Storm intensity was 40 mph.
.SITUATION OVERVIEW...
It is important not to focus on the exact forecast track. To do
so could result in bad decisions and place you or those you are
responsible for at greater risk. Tropical Storm Champi (29W) is
currently moving west towards the Marianas.
Damaging winds are likely within Guam and the Northern Marianas
late Saturday night and Sunday. At this time it appears that the
strongest winds will be towards the southernmost islands. Islands
near the center should prepare for typhoon force winds, with the
latest JTWC forecast showing sustained winds of roughly 90 knots.
.PRECAUTIONARY/PREPAREDNESS ACTIONS...
...NEW INFORMATION...
Champi (29W) has been upgraded to a tropical storm and is moving
west with sustained winds of 40 mph.
Measurements
| Coordinates | 39.9645, -100.8105 |
|---|---|
| Region | Guam; Rota; Tinian; Saipan |
| Location Precision | country |
| Issuing Authority | United States of America — us-noaa-nws-en |
| Cap Urgency | Future |
| Cap Certainty | Possible |
| Cap Expires | 2026-10-16T11:15:00+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 4 days ago (Oct 15, 2026 17:03 UTC) · we last heard from WMO Alert Hub (national weather services) 16 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; Rota; Tinian; Saipan
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
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