Guam, Northern Mariana Islands Typhoon Watch | Effective 04/10/2026 18:37

Headline: 
Typhoon Watch issued April 11 at 11:37AM ChST by NWS Tiyan GU
Event: 
Typhoon Watch
Urgency: 
Future
Effective: 
April 10, 2026 - 6:37pm
Expires: 
April 10, 2026 - 10:00pm
Description: 
...TROPICAL STORM SINLAKU SLOWLY INTENSIFYING NEAR CHUUK BEFORE HEADING TOWARD THE MARIANAS... .NEW INFORMATION... A Typhoon Watch has now been issued for 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 is in effect for Guam, Rota, Tinian, and Saipan. A Typhoon Watch means that Typhoon conditions, including winds of 74 mph or more, are possible within 48 hours. A Flood Watch is in effect for all of Guam and the Northern Marianas. Please listen closely for any 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 10 AM ChST...the center of Tropical Storm Sinlaku (04W) was located near latitude 8.5N...longitude 151.5E. This was about 570 miles southeast of Guam. The system has been nearly stationary. It is expected to make a turn toward the north-northwest with an increase in forward speed through Sunday as it treks toward the Marianas. Maximum sustained winds remain at 70 mph. Sinlaku is forecast to intensify through tonight, possibly becoming a typhoon as early as late afternoon today. .SITUATION OVERVIEW... A Typhoon Watch has now been issued. A more detailed statement will follow shortly.
Instruction: 
. For those under a watch or warning, now is the time to initiate preparations according to your typhoon disaster plan specific to your home or business. For those nearby, review your typhoon disaster plan and become ready to act if a watch or a warning is later issued for your area. It is important to actively listen for forthcoming information from your local National Weather Service office and emergency management agency.
Area Description: 
Guam; Rota; Tinian; Saipan
Forcast Office: 
NWS Tiyan GU
Sender: 
w-nws.webmaster@noaa.gov