Severe Hurricane / Cyclone / Typhoon ● Closed

Tropical Storm Warning issued October 2 at 9:21PM ChST by NWS Tiyan GU, United States of America

Event time: Last updated: Oct 11, 2026 United States
Icon = what happened · ring colour = how serious: Extreme Severe Moderate Minor

Loading live data… · Marker positions are approximate; severity is labelled in each popup. Sources: USGS, GDACS, NASA EONET, NOAA/NWS, EMSC.

...TYPHOON WARNING NOW IN EFFECT FOR AGRIHAN AND PAGAN IN THE
CNMI...

...TROPICAL STORM CHOI-WAN NEARLY STATIONARY AS IT CONTINUES WEST-
NORTHWEST AWAY FROM ANATAHAN...

.NEW INFORMATION...
A Typhoon Warning is now in effect for Agrihan and Pagan in the
CNMI.

.AREAS AFFECTED...
This local statement provides information and recommended actions
for people on Saipan, Tinian, Agrihan, Pagan and Alamagan in the
Commonwealth of the Northern Marianas.

.WATCHES/WARNINGS...
A Typhoon Warning is now in effect for Agrihan and Pagan in the
CNMI.

A Tropical Storm Warning remains in effect for Tinian, Saipan, and
Alamagan in the CNMI.

A Typhoon Watch remains in effect for Alamagan in the CNMI.

A Typhoon Warning means that typhoon conditions, including winds
of 74 mph or more are expected, with tropical storm force winds
beginning within 24 hours.
A Tropical Storm Warning means that tropical storm conditions,
including winds of 39 to 73 mph, are expected within 24 hours.
A Typhoon Watch means that typhoon conditions are possible within
24 hours.

A Flood Watch remains in effect for Tinian and Saipan. Please listen
closely for any Flash Flood Warnings that might be in effect for
your area.

Please check the latest public and marine forecasts for detailed
information about additional hazards.

.STORM INFORMATION...
At 8 PM ChST, the center of Tropical Storm Choi-wan (26W) was
located near latitude 17.1N, longitude 144.7E. This was about 80
miles northwest of Alamagan, 100 miles southwest of Pagan, 130
miles south-southwest of Agrihan, and 250 miles north of Guam.
Storm motion was west-northwest, 300 degrees, at 2 mph. Storm
intensity was 70 mph.

.SITUATION OVERVIEW...
Tropical Storm Choi-wan is very slowly pivoting to the north as it
moves away from Anatahan, and is expected to continue to intensify
through tonight and Saturday as it turns north-northeast toward
Agrihan and Pagan, likely becoming a typhoon later tonight. The
latest forecast shows Choi-wan as a Category 1 typh

Measurements

Coordinates39.9645, -100.8105
RegionTinian; Saipan
Location Precisioncountry
Issuing AuthorityUnited States of America — us-noaa-nws-en
Cap UrgencyImmediate
Cap CertaintyLikely
Cap Expires2026-10-03T05:30:00+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 report

This event as JSON · API and licence

Source updated 17 days ago (Oct 2, 2026 11:23 UTC) · we last heard from WMO Alert Hub (national weather services) 55 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; 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.

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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.

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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.

Tropical Storm Warning — Southern Calcasieu Severe Hurricane / Cyclone / Typhoon United States closed via NWS Sep 1, 2026 Tropical Storm Warning — East Cameron Severe Hurricane / Cyclone / Typhoon United States closed via NWS Sep 1, 2026 Tropical Storm Warning — Southern Newton Severe Hurricane / Cyclone / Typhoon United States closed via NWS Sep 1, 2026 Tropical Storm Warning — Lower Jefferson Severe Hurricane / Cyclone / Typhoon United States closed via NWS Sep 1, 2026

Nearby & related events

Wind Advisory issued October 19 at 1:35PM AKDT until October 20 at 10:00PM AKDT by NWS Juneau AK, United States of America Moderate Severe Storm United States active via WMO 22 min ago Wind Advisory issued October 19 at 1:35PM AKDT until October 21 at 4:00PM AKDT by NWS Juneau AK, United States of America Moderate Severe Storm United States active via WMO 22 min ago Wind Advisory issued October 19 at 1:35PM AKDT until October 21 at 4:00AM AKDT by NWS Juneau AK, United States of America Moderate Severe Storm United States active via WMO 22 min ago Winter Weather Advisory issued October 19 at 1:34PM AKDT until October 21 at 4:00AM AKDT by NWS Anchorage AK, United States of America Moderate Cold Wave United States active via WMO 23 min ago Winter Weather Advisory issued October 19 at 1:34PM AKDT until October 20 at 10:00PM AKDT by NWS Anchorage AK, United States of America Moderate Cold Wave United States active via WMO 23 min ago

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.