Severe thunderstorms are expected from the southern Plains to the Midwest through Friday night. Severe storm hazards may include large hail, severe winds, and tornadoes, some of which may be strong. There will be another chance for severe thunderstorms on Saturday for portions of Texas, the Lower Mississippi Valley, and the Ohio Valley. Storms could result in locally heavy rain and flash flooding. Read More >
Tidal Inundation Mapping
All heights on this map are in NAVD88 elevation. To correlate this value to local datums of tide gauges, such as Mean Lower Low Water (MLLW) or Washington Mean Low Water (WMLW) in your area, click on the tab above corresponding to the elevation you select.
Disclaimer: These maps are only valid when there is no freshwater flooding occurring. In the event of freshwater flooding on the Potomac River, users should consult the freshwater inundation maps located at these links:
Georgetown/Rosslyn areas:
https://water.weather.gov/ahps2/inundation/index.php?gage=gtnd2
Downtown DC/Potomac Park/Reagan Airport/Anacostia:
https://water.weather.gov/ahps2/inundation/index.php?gage=wasd2
Alexandria/Belle View/National Harbor/JBAB (south half):
https://water.weather.gov/ahps2/inundation/index.php?gage=axtv2
| NAVD88 Elevation | 2.0 ft |
| Georgetown (GTND2) | 4.26 ft (WMLW) |
| SW Waterfront (WASD2) | 3.4 ft (MLLW) |
| Alexandria (AXTV2) | 2.0 ft |
| Anacostia (ANAD2) | 2.0 ft |
| NAVD88 Elevation | 2.5 ft |
| Georgetown (GTND2) | 4.76 ft (WMLW) |
| SW Waterfront (WASD2) | 3.9 ft (MLLW) |
| Alexandria (AXTV2) | 2.5 ft |
| Anacostia (ANAD2) | 2.5 ft |
| NAVD88 Elevation | 3.0 ft |
| Georgetown (GTND2) | 5.26 ft (WMLW) |
| SW Waterfront (WASD2) | 4.4 ft (MLLW) |
| Alexandria (AXTV2) | 3.0 ft |
| Anacostia (ANAD2) | 3.0 ft |
| NAVD88 Elevation | 3.5 ft |
| Georgetown (GTND2) | 5.76 ft (WMLW) |
| SW Waterfront (WASD2) | 4.9 ft (MLLW) |
| Alexandria (AXTV2) | 3.5 ft |
| Anacostia (ANAD2) | 3.5 ft |
| NAVD88 Elevation | 4.0 ft |
| Georgetown (GTND2) | 6.26 ft (WMLW) |
| SW Waterfront (WASD2) | 5.4 ft (MLLW) |
| Alexandria (AXTV2) | 4.0 ft |
| Anacostia (ANAD2) | 4.0 ft |
| NAVD88 Elevation | 4.5 ft |
| Georgetown (GTND2) | 6.76 ft (WMLW) |
| SW Waterfront (WASD2) | 5.9 ft (MLLW) |
| Alexandria (AXTV2) | 4.5 ft |
| Anacostia (ANAD2) | 4.5 ft |
| NAVD88 Elevation | 5.0 ft |
| Georgetown (GTND2) | 7.26 ft (WMLW) |
| SW Waterfront (WASD2) | 6.4 ft (MLLW) |
| Alexandria (AXTV2) | 5.0 ft |
| Anacostia (ANAD2) | 5.0 ft |
| NAVD88 Elevation | 5.5 ft |
| Georgetown (GTND2) | 7.76 ft (WMLW) |
| SW Waterfront (WASD2) | 6.9 ft (MLLW) |
| Alexandria (AXTV2) | 5.5 ft |
| Anacostia (ANAD2) | 5.5 ft |
| NAVD88 Elevation | 6.0 ft |
| Georgetown (GTND2) | 8.26 ft (WMLW) |
| SW Waterfront (WASD2) | 7.4 ft (MLLW) |
| Alexandria (AXTV2) | 6.0 ft |
| Anacostia (ANAD2) | 6.0 ft |
| NAVD88 Elevation | 6.5 ft |
| Georgetown (GTND2) | 8.76 ft (WMLW) |
| SW Waterfront (WASD2) | 7.9 ft (MLLW) |
| Alexandria (AXTV2) | 6.5 ft |
| Anacostia (ANAD2) | 6.5 ft |
| NAVD88 Elevation | 7.0 ft |
| Georgetown (GTND2) | 9.26 ft (WMLW) |
| SW Waterfront (WASD2) | 8.4 ft (MLLW) |
| Alexandria (AXTV2) | 7.0 ft |
| Anacostia (ANAD2) | 7.0 ft |
| NAVD88 Elevation | 8.0 ft |
| Georgetown (GTND2) | 10.26 ft (WMLW) |
| SW Waterfront (WASD2) | 9.4 ft (MLLW) |
| Alexandria (AXTV2) | 8.0 ft |
| Anacostia (ANAD2) | 8.0 ft |
| NAVD88 Elevation | 9.0 ft |
| Georgetown (GTND2) | 11.26 ft (WMLW) |
| SW Waterfront (WASD2) | 10.4 ft (MLLW) |
| Alexandria (AXTV2) | 9.0 ft |
| Anacostia (ANAD2) | 9.0 ft |
| NAVD88 Elevation | 10.0 ft |
| Georgetown (GTND2) | 12.26 ft (WMLW) |
| SW Waterfront (WASD2) | 11.4 ft (MLLW) |
| Alexandria (AXTV2) | 10.0 ft |
| Anacostia (ANAD2) | 10.0 ft |
| NAVD88 Elevation | 11.0 ft |
| Georgetown (GTND2) | 13.26 ft (WMLW) |
| SW Waterfront (WASD2) | 12.4 ft (MLLW) |
| Alexandria (AXTV2) | 11.0 ft |
| Anacostia (ANAD2) | 11.0 ft |
| NAVD88 Elevation | 12.0 ft |
| Georgetown (GTND2) | 14.26 ft (WMLW) |
| SW Waterfront (WASD2) | 13.4 ft (MLLW) |
| Alexandria (AXTV2) | 12.0 ft |
| Anacostia (ANAD2) | 12.0 ft |
| NAVD88 Elevation | 13.0 ft |
| Georgetown (GTND2) | 15.26 ft (WMLW) |
| SW Waterfront (WASD2) | 14.4 ft (MLLW) |
| Alexandria (AXTV2) | 13.0 ft |
| Anacostia (ANAD2) | 13.0 ft |
| NAVD88 Elevation | 14.0 ft |
| Georgetown (GTND2) | 16.26 ft (WMLW) |
| SW Waterfront (WASD2) | 15.4 ft (MLLW) |
| Alexandria (AXTV2) | 14.0 ft |
| Anacostia (ANAD2) | 14.0 ft |
| NAVD88 Elevation | 15.0 ft |
| Georgetown (GTND2) | 17.26 ft (WMLW) |
| SW Waterfront (WASD2) | 16.4 ft (MLLW) |
| Alexandria (AXTV2) | 15.0 ft |
| Anacostia (ANAD2) | 15.0 ft |
| NAVD88 Elevation | 16.0 ft |
| Georgetown (GTND2) | 18.26 ft (WMLW) |
| SW Waterfront (WASD2) | 17.4 ft (MLLW) |
| Alexandria (AXTV2) | 16.0 ft |
| Anacostia (ANAD2) | 16.0 ft |
| NAVD88 Elevation | 17.0 ft |
| Georgetown (GTND2) | 19.26 ft (WMLW) |
| SW Waterfront (WASD2) | 18.4 ft (MLLW) |
| Alexandria (AXTV2) | 17.0 ft |
| Anacostia (ANAD2) | 17.0 ft |
Depending on your internet connection, it could take up to one minute for the map to be drawn after you select a water level.
| Select Water Level (in NAVD88): Use the tabs above to relate this value to local datums if needed. |
|
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