One product issued by NWS for:
Gale Warning
URGENT - MARINE WEATHER MESSAGE National Weather Service San Francisco Bay Area 847 PM PDT Sat Apr 10 2021 PZZ540-111000- /O.CON.KMTR.GL.W.0015.000000T0000Z-210411T1000Z/ Coastal Waters from Point Arena to Point Reyes California out to 10 nm- 847 PM PDT Sat Apr 10 2021 ...GALE WARNING REMAINS IN EFFECT UNTIL 3 AM PDT SUNDAY... * WHAT...Northwest winds 20 to 30 kt with gusts up to 40 kt and seas 8 to 13 feet at 13 seconds. * WHERE...Coastal Waters from Point Arena to Point Reyes California out to 10 nm. * WHEN...Until 3 AM PDT Sunday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$