NWS Tiyan GUTY.A 4029October 16, 2026
Typhoon Watch: Guam Coastal Waters, Rota Coastal Waters, Tinian Coastal Waters and 1 more
The National Weather Service office in Tiyan issued a typhoon watch for Guam Coastal Waters, Rota Coastal Waters, Tinian Coastal Waters and 1 more, in force until 4:00 p.m. local time on October 16.
Watch
Issued12:25 a.m. UTC+10, October 16, 2026
In force12:25 a.m. UTC+10, October 16, 2026
Expires4:00 p.m. UTC+10, October 16, 2026
In force for 15.6 hours
The notice
- Issued by
- National Weather Service, Tiyan GU
- Area
- Guam Coastal Waters, Rota Coastal Waters, Tinian Coastal Waters and 1 more
- Level
- Watch
- Issued
- 12:25 a.m. UTC+10, October 16, 2026
- Expires
- 4:00 p.m. UTC+10, October 16, 2026
- CAP severity, certainty, urgency
- Severe, Possible, Future
- VTEC event
- PGUM TY.A 4029
- Official source
- National Weather Service: the notice at its source
NWS notices, October 2026The latest from the National Weather Service
Source: National Weather Service: the notice at its source. AreaZine rebuilds this page from the agency's record; the agency's page is the one to act on. A U.S. Government work, in the public domain.
The notice as issued
* WHAT...Typhoon conditions, including winds of 64 knots or more are possible within the next 48 hours. * WHERE...Guam, Rota, Tinian and Saipan Coastal Waters. * WHEN...Through at least Sunday night, possibly longer if conditions warrant. * IMPACTS...Destructive winds will produce dangerous seas that could damage, capsize or sink vessels, along with drastically reducing visibilities in heavy rain. * ADDITIONAL DETAILS...Tropical Storm Champi (29W) is still moving toward the Marianas. The exact path of 29W remains subject to change, however, it is expected to pass through the coastal waters over the weekend. TS 29W is expected to strengthen further today as it approaches, moving through the region as at least a category 1 typhoon, but more likely stronger.
What the agency told people to do
Mariners should pay close attention to the marine forecast and consider wind and sea conditions in planning. Remain in port, seek safe harbor and/or secure your vessel for severe wind and seas.
Source: National Weather Service: the notice at its source. The text is the agency's, unedited. A U.S. Government work, in the public domain.