####018005620#### WTPQ82 PGUM 080455 HLSPQ2 URGENT - IMMEDIATE BROADCAST REQUESTED Tropical Storm Bolaven (15W) Local Statement National Weather Service TIYAN GU 255 PM ChST Sun Oct 8 2023 ...TROPICAL STORM BOLAVEN MOVING WEST-NORTHWEST TOWARDS THE MARIANAS... .NEW INFORMATION... None. .AREAS AFFECTED... This local statement provides important information and recommended actions for people in Guam, Rota, Tinian, Saipan and the surrounding coastal waters of the Marianas. .Watches/Warnings... A Typhoon watch is in effect for the following locations: Guam, Rota, Tinian, Saipan, and the surrounding coastal waters of the Marianas. A Typhoon Watch means that Typhoon conditions are possible within the next 48 hours somewhere within the area. .STORM INFORMATION... At 1 PM ChST, the center of Tropical Storm Bolaven (15W) was located near LATITUDE 9.6N...LONGITUDE 152.9E. This was about 610 miles east- southeast of Guam. Storm motion was west-northwest. Storm intensity was 40 mph. .SITUATION OVERVIEW... A Typhoon Watch is in effect. When making decisions, do not focus on the exact forecast track. TS Bolaven (15W) continues to strengthen over northern Chuuk State and is moving slowly west-northwest. It is too early to provide exact wind and coastal inundation forecast values for specific locations in the Marianas. A general concern should be for the possibility of at least extensive damage somewhere within the Mariana Islands. .PRECAUTIONARY/PREPAREDNESS ACTIONS... For those under a watch, now is the time to begin preparing your home or business according to your typhoon disaster plan. Listen for possible warnings and be ready to evacuate if necessary. Heed the advice of local officials and comply with any orders that are issued. For interests at ports, docks and marinas, it is recommended that you perform the prescribed preparations according to your emergency operations plan for tropical cyclones. If you live on a boat, begin to safely secure your craft and make plans to leave it for adequate land based shelter. Listen for possible warnings. Regarding the Guam, Rota, Tinian and Saipan coastal waters, small craft should return to port or seek safe harbor. Closely monitor NOAA weather radio or other local news outlets for official storm information. Listen for possible changes to the forecast. For additional precautionary and preparedness information, please refer to the detailed recommendations relative to your location as further described by your local emergency management agencies. && .NEXT UPDATE... The next local statement will be issued by the National Weather Service in Tiyan, Guam around 9PM ChST, or sooner if conditions warrant. GUZ001-MPZ001>003-081300- /O.CON.PGUM.TY.A.4015.000000T0000Z-000000T0000Z/ Guam-Rota-Tinian-Saipan- 255 PM ChST Sun Oct 8 2023 ...TYPHOON WATCH IS IN EFFECT... ...PRECAUTIONARY/PREPAREDNESS ACTIONS... Stay calm and keep informed. If your home is vulnerable to high winds, or you live in a low-lying area along the coast or any location prone to flooding, evacuate to a designated shelter or ride out the storm in the sturdy home of family or friends. Some suggested items to bring to a shelter include a first aid kit, medicines and prescriptions, baby food and diapers, games and books, toiletries, a battery-powered radio, a cell phone, flashlights with extra batteries, a blanket or sleeping bag for each person, personal identification, copies of key papers such as insurance policies, available cash and credit cards. Remember, pets are not allowed in most public shelters, so check ahead with your intended shelter. Regarding your home or business, cover all windows and doors with shutters or plywood. Move patio furniture and other loose objects indoors. Brace all exterior doors, including garage doors. Do this as early as possible. ...TIMING AND PROBABILITY OF TROPICAL STORM/TYPHOON CONDITIONS... The onset of tropical storm conditions could start as early as Tuesday morning, with the onset of typhoon force conditions possibly by Tuesday evening. The probability for tropical storm force wind speed is 70 to 90 percent. The probability for typhoon force wind speed is 20 to 30 percent for Guam, Tinian and Saipan. The probability of typhoon force wind speed for Rota is 30 to 40 percent. ...WIND INFORMATION... As Tropical Storm Bolaven (15W) moves closer to the Marianas, the threat of sustained high winds is likely to increase. The latest forecast is for tropical storm force winds to come in as early as early Tuesday morning. Strong tropical storm or typhoon force winds are possible by Tuesday evening. A general concern should be for the possibility of at least damaging winds somewhere within this area. ...STORM SURGE AND SURF INFORMATION... Seas of 22 to 26 feet are possible. Dangerous surf conditions are possible Monday evening through at least Thursday, with highest forecast surf at around 14 to 18 feet along east and possibly south facing reefs by Tuesday morning. Inundation of 2 to 4 feet is possible. ...OTHER STORM EFFECTS... Heavy rainfall is likely from Monday evening into the second half of the week. Rainfall amounts of 6 to 10 inches, with local amounts in excess of 12 inches are possible. A Flash Flood Watch will be in effect from Monday afternoon to at least Wednesday afternoon. $$ Slagle