* WHAT...Southwest tropical storm force wind to 40 kt with gusts to 60 kt and seas 14 to 20 feet.
* WHERE...Tinian and Saipan Coastal Waters.
* WHEN...Until further notice.
* IMPACTS...Very strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility.
* ADDITIONAL DETAILS...Tropical Storm Choi-wan (26W) continues to strengthen as it slowly pivots north-northeast near the northern Marianas west of Alamagan, with Tropical storm force winds already being felt over Saipan since early this morning. Hazardous seas will continue.