High-tide flooding by gauge: the sunny-day flood record

Across 94 gauges with both periods, high-tide flood days went from 2.9 a year in 1996 to 2005 to 7.9 in 2016 to 2025. Berwick, Atchafalaya River, LA, has the most recently, at 64.8 days a year.

All gauges by year

Mean high-tide flood days per gauge

Mean high-tide flood days per gauge 1950: 1.9 1951: 1.4 1952: 1.8 1953: 1.6 1954: 1.7 1955: 2.3 1956: 0.6 1957: 1.9 1958: 0.7 1959: 1.9 1960: 2.6 1961: 2.6 1962: 0.9 1963: 1.0 1964: 1.6 1965: 2.0 1966: 1.8 1967: 1.3 1968: 3.0 1969: 1.8 1970: 1.8 1971: 1.7 1972: 3.3 1973: 2.2 1974: 0.7 1975: 0.6 1976: 0.7 1977: 3.7 1978: 1.4 1979: 1.7 1980: 1.1 1981: 1.9 1982: 4.6 1983: 1.8 1984: 1.0 1985: 1.6 1986: 2.9 1987: 1.5 1988: 0.9 1989: 0.6 1990: 0.9 1991: 2.6 1992: 3.5 1993: 2.0 1994: 2.2 1995: 3.2 1996: 2.5 1997: 6.2 1998: 2.1 1999: 1.6 2000: 1.3 2001: 1.6 2002: 2.9 2003: 2.8 2004: 3.7 2005: 4.2 2006: 2.8 2007: 2.1 2008: 3.6 2009: 7.1 2010: 3.5 2011: 4.2 2012: 5.1 2013: 2.3 2014: 2.5 2015: 8.9 2016: 5.3 2017: 9.0 2018: 7.8 2019: 10.4 2020: 11.3 2021: 7.0 2022: 6.0 2023: 10.2 2024: 11.9 11.9 2025: 7.6 19501960197019801990200020102020

Every gauge

Flood days use NOAA's own threshold for each gauge.

High-tide flooding by gauge
Berwick, Atchafalaya RiverLA64.8—2019205
Eagle Point, Galveston BayTX33.13.8201964
EastportME31.120.0201744
Hilo, Hilo Bay, Kuhio BayHI26.84.5202055
Pilots Station East, S.W. PassLA24.8—202464
KawaihaeHI24.21.5202051
New Canal StationLA20.2—202047
Kahului, Kahului HarborHI16.81.4202436
Shell BeachLA16.5—202435
Galveston Bay Entrance, North JettyTX16.53.2202438
Freshwater Canal LocksLA15.8—201529
Galveston Pier 21TX15.53.1202027
HonoluluHI14.42.3202043
Sewells PointVA14.24.9202323
MokuoloeHI14.03.2202029
Wrightsville BeachNC13.7—202323
NawiliwiliHI13.11.6202329
BostonMA12.94.1200922
LAWMA, Amerada PassLA12.9—202030
Money PointVA12.84.5202320
Sandy HookNJ12.73.8202323
LewisettaVA12.72.3202322
Atlantic CityNJ12.64.6202326
Toke PointWA12.615.6199733
The BatteryNY12.43.3202324
DuckNC12.34.7202322
Yorktown USCG Training CenterVA12.2—202317
Bar HarborME12.14.8202319
WachapreagueVA12.12.7202318
Morgans Point, Barbours CutTX11.94.1202424
Trident Pier, Port CanaveralFL11.81.0202320
Lake CharlesLA11.8—201723
Bay Waveland Yacht ClubMS11.63.6202023
Windmill PointVA11.52.7202321
LewesDE11.33.8202321
Fort PulaskiGA11.11.5202318
North SpitCA11.14.8202522
Texas Point, Sabine PassTX10.8—202423
Bulk TerminalLA10.1—202422
Kings PointNY10.04.9202323
Coast Guard Sector MobileAL9.8—202417
AnnapolisMD9.71.7201918
CharlestonSC9.30.9202317
Cape MayNJ8.92.1202318
Solomons IslandMD8.91.3202316
WashingtonDC8.72.6201822
PortlandME8.63.2200921
Calcasieu PassLA8.6—202022
Tolchester BeachMD8.42.3201917
KiptopekeVA8.32.9202314
BridgeportCT7.93.1202316
ProvidenceRI7.63.0201715
BaltimoreMD7.32.1201812
Springmaid PierSC7.21.5202312
AstoriaOR7.29.2198226
South BeachOR7.18.6199725
Bayou La Batre BridgeAL7.0—202014
Fernandina BeachFL6.81.4202310
San DiegoCA6.81.3201713
Neah BayWA6.89.5198229
Fall RiverMA6.71.7202314
East Fowl River BridgeAL6.7—202014
Packery ChannelTX6.7—202421
Dog River BridgeAL6.5—202013
West Fowl River BridgeAL6.4—202014
Pascagoula NOAA LabMS6.4—202017
CambridgeMD6.31.3202312
PhiladelphiaPA6.12.8202317
Bishops HeadMD6.1—201910
Cedar KeyFL6.01.4201911
New HavenCT5.92.5202311
CharlestonOR5.98.1199727
Dauphin IslandAL5.8—202018
RockportTX5.81.2202418
Mobile State DocksAL5.5—202012
Chickasaw CreekAL5.5—201513
MontaukNY5.42.1201711
Beaufort, Duke Marine LabNC5.30.8202311
ApalachicolaFL5.31.7201810
Grand IsleLA5.30.9202016
NewportRI5.21.3201711
Marcus HookPA5.0—202311
New LondonCT4.82.0201710
WilmingtonNC4.80.7201814
Woods HoleMA4.71.9201710
Delaware CityDE4.6—20239
Ocean City InletMD4.6—20098
Mayport (Bar Pilots Dock)FL4.60.520208
Friday HarborWA4.63.4198217
Nantucket IslandMA4.41.4201711
Chesapeake CityMD4.3—20238
Panama City BeachFL4.31.8202011
Oregon Inlet MarinaNC4.21.020098
Virginia KeyFL4.20.320199
Port OrfordOR4.28.7199723
PensacolaFL4.12.0202014
Lake Worth Pier, Atlantic OceanFL3.9—20257
Port AngelesWA3.94.3198212
Old Port TampaFL3.70.820247
Clearwater BeachFL3.50.820237
Panama CityFL3.51.820209
Port TownsendWA3.42.9198213
Fort MyersFL3.31.320237
Reedy PointDE3.10.4202310
SeattleWA3.02.9199711
Port ManateeFL2.81.320237
St. PetersburgFL2.81.020236
Santa MonicaCA2.81.420157
Los AngelesCA2.71.120257
Port Fourchon, Belle PassLA2.4—202013
Arena CoveCA2.23.5199714
Crescent CityCA2.14.8198223
Point ReyesCA2.01.820168
Cherry PointWA2.03.6198215
La JollaCA1.81.920088
Port IsabelTX1.50.520247
MontereyCA1.11.119827
Port ChicagoCA1.11.2198215
Port San LuisCA1.00.819696
Vaca Key, Florida BayFL0.80.120222
AlamedaCA0.61.1198210
San FranciscoCA0.51.319826
Key WestFL0.40.119442