FZUS76 KSGX 180922 MWSSGX MARINE WEATHER STATEMENT National Weather Service SAN DIEGO CA 222 AM PDT Thu Sep 18 2025 PZZ740-745-182100- Coastal Waters from San Mateo Point to the Mexican Border and out to 10 nm- Waters from San Mateo Point to the Mexican Border Extending 10 to 60 nm out including San Clemente Island- 222 AM PDT Thu Sep 18 2025 ...ISOLATED THUNDERSTORMS OVER THE COASTAL WATERS TODAY INTO EARLY FRIDAY... There is a slight chance of thunderstorms today into early Friday, with the greatest chance this afternoon. Any storm could briefly produce lightning, gusty erratic winds, and choppy seas. Mariners are urged to closely monitor the weather, stay tuned to updates, and prepare to adjust plans accordingly. $$