Potomac River at Lewisetta (IN MLLW)
Virginia — Water Level & Flood Stage
Located in Northumberland County, Virginia on the Potomac River. Live water level data from USGS, updated every 15 minutes.
Current Water Level
Gage Height
Loading...
Streamflow
Loading...
Last Reading
Loading...
This is an NWS forecast point (LID: LWTV2). Live data may be limited. View on NWS AHPS →
Flood Stages
Major Flood
4 ft
Moderate Flood
3.5 ft
Minor Flood
3 ft
Action Stage
2.5 ft
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
What Floods at Each Level
4 ft
Severe flooding will cause extensive inundation and flooding of numerous roads and buildings resulting in a significant threat to property and life. Water will be 2 to 3 feet or more above ground level in some areas. Severe flooding will extend inland from the waterfront and shoreline flooding homes, businesses and isolating some neighborhoods. Numerous roads will be impassable under several feet of water and cars submerged. Some areas will need to be evacuated.
3.5 ft
Widespread flooding of vulnerable areas will result in an elevated threat of property damage to homes and businesses near the waterfront and shoreline. Water will be 1 to 2 feet above ground level in some areas resulting in a sufficient depth to close numerous roads and threaten homes and businesses. Flooding will extend inland from the waterfront along tidal rivers and bays resulting in some road closures and flooding of vehicles.
3 ft
Shallow flooding is expected in the most vulnerable locations near the waterfront and shoreline resulting in a low threat of property damage. Expect up to one foot of water above ground level in low lying, vulnerable areas. Some roads and low lying property including parking lots, parks and lawns near the waterfront will experience shallow flooding.
Impact statements from the National Weather Service, describing what typically happens at each water level.
7-Day Water Level Chart
Loading chart data...
Historic Crests
| Date | Stage | Flow |
|---|---|---|
| Sep 1, 2006 | 5.76 ft | — |
| Sep 1, 2006 | 5.76 ft | — |
| Sep 18, 2003 | 5.47 ft | — |
| Sep 18, 2003 | 5.47 ft | — |
| Oct 29, 2021 | 4.78 ft | — |
About This Gauge
NWS LID
LWTV2
River
Potomac River
County
Northumberland, VA
Coordinates
37.9950°N, 76.4650°W
Get Flood Alerts for Potomac River
StormCast monitors this gauge and sends a push notification to your phone when the water level crosses into a new flood category — even at 3 AM.
Frequently Asked Questions
What is the current water level of Potomac River at Lewisetta (IN MLLW)?
The Potomac River at Lewisetta (IN MLLW) gauge is maintained by USGS and reports water levels every 15 minutes. Visit this page to see the latest reading updated live, or download StormCast to get push alerts when levels rise.
What is flood stage for Potomac River at Lewisetta (IN MLLW)?
The NWS-defined flood stage for Potomac River at Lewisetta (IN MLLW) is 3 feet. Action stage begins at 2.5 feet. Moderate flooding starts at 3.5 feet, and major flooding at 4 feet.
How do I get alerts when Potomac River rises?
Download StormCast free on Google Play, go to River Gauges, and add Potomac River at Lewisetta (IN MLLW) to your watchlist. StormCast will send a push notification to your phone whenever the water level crosses into a new NWS flood category — even when your screen is off.
Where is the Potomac River at Lewisetta (IN MLLW) gauge located?
The gauge is located in Northumberland County, Virginia at coordinates 37.9950°N, 76.4650°W. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Gauges on Potomac River
On This River
More Resources
Source & Notes
Data provided by: National Ocean Service
- <head> <meta charset="utf-8"> <style type="text/css"> .style1 { background-color: #FFFF00; } </style> </head> Tide Forecasts are a total water level forecast referenced to mean lower low water. Please refer to <a href="http://forecast.weather.gov/product.php?site=NWS&product=CFW&issuedby=AKQ"><font color="#0000ff"><span class="style1">Coastal Flood Advisories and Warnings</span></font></a> for official water level forecasts during periods of coastal flooding. During tropical cyclones, please refer<span class="style1"> </span> <a href="https://forecast.weather.gov/product.php?site=NWS&issuedby=AKQ&product=TCV&format=CI&version=1&glossary=1"> <span class="style1">here</span></a> for additional storm surge information.
- Please click<a href="http://www.weather.gov/images/akq/hydro/Coastal_Flooding/CoastalFloodingThresholds.png"> here</a> for Coastal Flooding Thresholds definitions.