Lewisetta Probabilities (YKTV2) - 2018 adjusted tidal epoch | |||||||
Exceedence Probability | Return Frequency | Ft./MLLW | Ft./MHHW | Ft. NAVD88 | Last Occurred | MLLW Level (ft) | Event (blue denotes Tropical) |
1% | 100 yr | 5.70 | 4.19 | 4.87 | 9/1/2006 | 5.76 | |
2% | 50 year | 5.45 | 3.94 | 4.62 | 9/18/2003 | 5.44 | Hurricane Isabel |
4% | 25 year | 4.79 | 3.28 | 3.96 | |||
10% | 10 year | 4.40 | 2.89 | 3.57 | 10/12/2019 | 4.38 | |
20% | 5 year | 3.81 | 2.30 | 2.98 | |||
50% | 2 year | 3.65 | 2.14 | 2.82 | 4/30/2020 | 3.61 | |
99% | 1 year | 3.08 | 1.57 | 2.25 | 12/2/2019 | 3.09 | |
Purple Shading indicates "MAJOR" Flooding | Red Shading indicates "MODERATE Flooding | Orange Shading Indicates "MINOR" Flooding |