Overall Green Tropical Cyclone for CHOI-WAN-26 in Northern Mariana Islands, Guam from 30 Sep 2026 00:00 UTC to 02 Oct 2026 18:00 UTC

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Overall Green Tropical Cyclone for CHOI-WAN-26

in Northern Mariana Islands, Guam

Event summary

Tropical Cyclone CHOI-WAN-26 can have a low humanitarian impact based on the maximum sustained wind speed, exposed population and vulnerability.

GDACS ID	TC 1001332
Name	CHOI-WAN-26
From - To	30 Sep - 02 Oct
Exposed countries	Northern Mariana Islands, Guam
Exposed population	No people in Category 1 or higher
Maximum wind speed	204 km/h Category 3
Maximum storm surge	0.2 m (02 Oct 23:00 UTC)
Vulnerability	--

GDACS Score

For more info on GDACS alert score click here.

	Wind	Storm surge	Rainfall	GDACS score
GDACS JTWC	204 km/h	0.2 m	n.a.	0.5
Single TC: maximum expected impact (wind, storm surge, rainfall)
HWRF	216 km/h	1.1 m	748 mm	0.5
GFS	184 km/h	n.a.	744 mm	0.5
ECMWF	133 km/h	1.3 m	471 mm	0.5

Maximum expected impact (wind, storm surge and rainfall) using different data sources.

Virtual OSOCC

Meteo assessment

Satellite products

Analytical products

Detailed event map. European Union, 2026. Map produced by EC-JRC.
The boundaries and the names shown on this map do not imply official endorsement or acceptance by the European Union.

Updates on volcanic activity (Smithsonian)

Latest media headlines

Choi-Wan nearly stalls; tropical-storm conditions linger over Saipan, .. 10/2/2026 12:35:00 PM.

Tropical Storm Choi-Wan passes closest approach to Saipan, Tinian 10/2/2026 11:12:00 AM.

Tropical Storm Choi-Wan Closes Schools, Offices In Northern Marianas 10/2/2026 4:59:00 AM.

Fair weather in Luzon; rains, thunderstorms over Visayas, Mindanao — P.. 10/2/2026 1:07:00 AM.

View more news

Estimated casualties (PAGER)

USGS estimates the number of casualties for each earthquake for the Prompt Assessment of Global Earthquakes for Response (PAGER) product.
The graph shows the current fatalities estimate.

Exposed population

Analytical products

Data, images, links, services and documents

For this events, GDACS has links to information from the following sources: EC-JRC (40), INFORM (1), (1),

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