Guam Typhoon Watch | Effective 04/15/2026 15:59

Headline: 
Typhoon Watch issued April 16 at 8:59AM ChST by NWS Tiyan GU
Event: 
Typhoon Watch
Urgency: 
Future
Effective: 
April 15, 2026 - 3:59pm
Expires: 
April 16, 2026 - 12:00am
Description: 
...TYPHOON SINLAKU CONTINUES TO SLOWLY MOVE NORTHWEST AWAY FROM TINIAN AND SAIPAN... .NEW INFORMATION... None. .AREAS AFFECTED... This local statement provides important information and recommended actions for people in Guam and the Northern CNMI. .WATCHES/WARNINGS... A Typhoon Warning continues for Rota, Tinian, Saipan, Alamagan, Pagan, and Agrihan. A Tropical Storm Warning and a Typhoon Watch continues for Guam. A Flood Watch is in effect for portions 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 7 AM ChST...the center of Typhoon Sinlaku (04W) was located near latitude 17.0N, longitude 144.5E. This was about 155 miles north-northwest of Saipan. Storm motion was north, 350 degrees, at 6 mph. Storm intensity was 130 mph. .SITUATION OVERVIEW... The eye of Typhoon Sinlaku (04W) is moving slowly north and the the eye is well north-northwest of Tinian and Saipan. Typhoon Sinlaku has been slow to move out. and has simultaneously expanded the TS wind field. This has kept Guam just within the tropical storm force winds and Saipan and Tinian are now on the outer edge of the destructive tropical storm winds. Typhoon Sinlaku is now moving through the northern CNMI just west of Alamagan, Pagan, and Agrihan As Sinlaku moves through the northern CNMI today and tonight, it is forecast to curve northeastward, passing north of Agrihan Friday.
Instruction: 
People should remain in a designated shelter or in a sturdy and reinforced concrete building. Due to the size and slow movement of the storm, tropical storm force winds will be slow to subside, potentially beginning to fall below damaging levels this morning. According to the latest forecast from the Joint Typhoon Warning Center. Even when winds start to decrease, remain indoors until the government of Guam gives the "all clear". TS force gusts remain possible with any passing shower.
Area Description: 
Guam
Forcast Office: 
NWS Tiyan GU
Sender: 
w-nws.webmaster@noaa.gov