


Marine Weather Statement
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
194 FZMY70 PGUM 100912 MWSGUM Marine Weather Statement National Weather Service Tiyan GU 708 PM ChST Sun Aug 10 2025 PMZ152>154-101045- 708 PM ChST Sun Aug 10 2025 ...STRONG THUNDERSTORMS OVER THE WATERS... The areas affected include... Saipan and Tinian Coastal Waters... At 708 PM ChST, satellite imagery indicated strong thunderstorms satellite imagery indicated strong thunderstorms producing frequent intense lightning. These thunderstorms were located just east of Saipan and Tinian`s coast. The line of storms is moving west at about 20 knots. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners can expect gusty winds to around 25 knots, locally higher waves, lightning strikes, and heavy downpours. Boaters should seek safe harbor immediately until these storms pass. Intense lightning is occurring with these storms. If caught on the open water stay below deck if possible, keep away from ungrounded metal objects. && LAT...LON 1476 14493 1513 14490 1541 14501 1586 14545 1594 14560 1594 14599 1574 14630 1506 14617 1476 14606 1433 14578 $$ Williams