Severe Hurricane / Cyclone / Typhoon ● Monitoring
Typhoon Watch issued October 18 at 3:01AM 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.
...TYPHOON CHAMPI NOW A DANGEROUS CATEGORY 4 MOVING WEST INTO GUAM
COASTAL WATERS...
.NEW INFORMATION...
None.
.AREAS AFFECTED...
This local statement provides information and recommended actions for
people on Guam and on Rota, Tinian and Saipan in the Northern
Marianas.
.Watches/Warnings...
A Typhoon Warning continues for Guam and Rota.
A Tropical Storm Warning and a Typhoon Watch continues for Tinian
and Saipan.
A Flood Watch is in effect for Rota, Tinian and Saipan in the
Northern Marianas. Please listen closely for any Flood Warnings that
might be in effect for your area.
A Flash Flood Warning is now in effect for Guam.
Please check the latest public and marine forecasts for detailed
information about additional hazards.
.STORM INFORMATION...
At 1 AM ChST...the center of Typhoon Champi (29W) was located near
latitude 13.0N...longitude 145.4E. This was about 55 miles southeast
of Guam. Storm motion was west, 275 degrees, at 14 mph. Storm
intensity was 140 mph. This general forecast track will take Champi
just south of Guam as a Category 4 typhoon as it intensifies further
the next few days west of the Marianas.
.SITUATION OVERVIEW...
Typhoon Champi (29W) has been undergoing rapid intensification
today. As a result it is now a dangerous category 4 typhoon. It is
expected to pass a little south of Guam as a super typhoon within
the next 12 hours. This may potentially bring devastating wind
conditions to much of Guam during passage.
.PRECAUTIONARY/PREPAREDNESS ACTIONS...
Measurements
| Coordinates | 39.9645, -100.8105 |
|---|---|
| Region | Tinian; Saipan |
| Location Precision | country |
| Issuing Authority | United States of America — us-noaa-nws-en |
| Cap Urgency | Future |
| Cap Certainty | Possible |
| Cap Expires | 2026-10-18T15:15:00+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 2 days ago (Oct 17, 2026 17:02 UTC) · we last heard from WMO Alert Hub (national weather services) 52 seconds ago
On a slow connection? Low-bandwidth version — no map, no scripts, under 14 KB.
Internet connectivity at the time
Internet connectivity in United States dropped 7 hours after this event, and stayed disrupted for about 1 hour.
From 18 Oct 2026 00:00 UTC to 18 Oct 2026 01:00 UTC. Detected by active probing — networks that stopped answering.
Internet outages have many causes — damaged cables, power failures, network maintenance and deliberate shutdowns among them. IODA detects the loss of connectivity and does not attribute it to anything. This is shown because it happened at the same time, not because one caused the other.
Measured by IODA, Georgia Institute of Technology.
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; 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
Severe and extreme events of the same kind, before this one. Listed for scale, not because they are connected to it.
Nearby & related events
Disclaimer: figures are automatic feeds from the named agencies and may be revised. Do not use this page for life-safety decisions — follow official local emergency services.