826 

FZUS72 KMFL 180915

MWSMFL



Marine Weather Statement

National Weather Service Miami FL

515 AM EDT Thu Sep 18 2025



AMZ650-670-181015-

515 AM EDT Thu Sep 18 2025



...A STRONG THUNDERSTORM OVER THE WATERS...



The areas affected include...

  Coastal waters from Jupiter Inlet to Deerfield Beach FL out 20 

  NM...

  Waters from Jupiter Inlet to Deerfield Beach FL from 20 to 60 

  NM...



At 514 AM EDT, Doppler radar indicated a strong thunderstorm, capable

of producing winds to around 30 knots. This thunderstorm was located

near Palm Beach Shores, moving north at 10 knots.



PRECAUTIONARY/PREPAREDNESS ACTIONS...



Mariners can expect gusty winds to around 30 knots and locally higher

waves. Boaters should seek safe harbor immediately until this storm

passes.



Waterspouts are possible with this activity. Remain on the alert in

case warnings are issued for waterspout development.



&&



LAT...LON 2657 7970 2654 8005 2697 8010 2697 7970



$$



AR






278 

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.



$$






277 

FZUS76 KLOX 180928

MWSLOX



Marine Weather Statement

National Weather Service Los Angeles/Oxnard CA

228 AM PDT Thu Sep 18 2025



PZZ645-650-655-670-673-676-182200-

Point Piedras Blancas to Point Sal westward out to 10 NM-

East Santa Barbara Channel from Pt. Conception to Pt. Mugu CA

including Santa Cruz Island-

Inner waters from Point Mugu to San Mateo Pt. CA including Santa

Catalina and Anacapa Islands-

Point Piedras Blancas to Point Sal from 10 to 60 NM-

Waters from Pt. Sal to Santa Cruz Island CA and westward 60 nm

including San Miguel and Santa Rosa Islands-

Outer waters from Santa Cruz Island to San Clemente Island to

60 NM offshore including San Nicolas and Santa Barbara Islands-

228 AM PDT Thu Sep 18 2025



...THUNDERSTORMS POSSIBLE OVER THE COASTAL WATERS THROUGH 

FRIDAY...



A moist and unstable air mass, associated with the remnants of 

Tropical Storm Mario, will bring the threat of showers and

thunderstorms to all of the coastal waters through Friday. The 

period of most concern will likely be today through Thursday. Any

thunderstorms that form will be capable of producing gusty and 

erratic winds, locally rough seas, dangerous cloud-to-ocean 

lightning, brief heavy rainfall, and a waterspout. 



With thunderstorms possible, consider adjusting your plans, and 

continue to monitor the forecast for this evolving weather 

scenario.



$$



Hall