The advisory warns of minor flooding in low-lying coastal areas across the Bay Area, particularly during high tide events. Residents and businesses near the coast may experience temporary water inundation, which could disrupt transportation and damage property. The elevated sea surface temperatures, driven by El Niño and a Kelvin wave in the Pacific, are exacerbating the situation. While the flooding is expected to remain minor, it could still pose risks to those in vulnerable areas, especially during peak high tides.