Extreme Water Levels
The monthly extreme water levels include a Mean Sea Level (MSL) trend of 4.1 millimeters/year with a 95% confidence interval of +/- 0.84 millimeters/year which is equivalent to a change of 1.35 feet in 100 years.
Monthly highest and lowest water levels, along with 1%, 10%, 50%, and 99% annual exceedance
probability levels shown in red, orange, blue, and purple, respectively. Values are displayed in meters and feet and are relative to Mean Higher High Water (MHHW),
Mean Lower Low Water (MLLW), or Mean Sea Level (MSL) datums.