The strong winds and high seas pose significant risks to small crafts, which may sustain heavy damage or become unsalvageable in these extreme conditions. Mariners should be prepared for hazardous conditions, including rough seas and potential thunderstorms. The high waves, particularly across the San Francisco Bar, may be more than twice as high as surrounding waters, increasing the risk of capsizing. Coastal areas may also experience heavy rain and localized flooding, especially during periods of high tide.