High-tide flooding, often referred to as "nuisance" or “sunny day” flooding, is increasingly common due to years of relative sea level increases, says NOAA. "It occurs when tides reach anywhere from 1.75 to 2 feet above the daily average high tide and start spilling onto streets or bubbling up from storm drains. As sea level rise continues, damaging floods that decades ago happened only during a storm now happen more regularly, such as during a full-moon tide or with a change in prevailing winds or currents."