Northern Mariana Islands Extreme Typhoon Warning | Effective 10/17/2026 11:40

Headline: 
Typhoon Warning issued October 18 at 4:40AM ChST by NWS Tiyan GU
Event: 
Typhoon Warning
Urgency: 
Immediate
Effective: 
October 17, 2026 - 11:40am
Expires: 
October 17, 2026 - 7:45pm
Description: 
Updated for compact wind radii, reducing winds for Rota and Guam. ...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 4 AM ChST...the center of Typhoon Champi (29W) was located near latitude 13.1N...longitude 144.9E. This was about 25 miles southeast of Guam. Storm motion was west, 280 degrees, at 15 mph. Storm intensity was 140 mph. This general forecast track will take Champi about 15 miles 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...
Instruction: 
Tropical storm conditions will soon occur. Get to safe shelter now if you are not already there. Everyone should remain alert and stay inside. Listen for possible flood warnings.
Area Description: 
Rota
Forcast Office: 
NWS Tiyan GU
Sender: 
w-nws.webmaster@noaa.gov