Nassawango Creek near Snow Hill, MD
River level and flood forecast · Worcester County
The river is 4.6 ft below flood stage (6.5 ft).
Flow: 14 cubic feet per second (USGS).
The last 7 days and the forecast
NWS forecast issued Sun, Dec 31, 7 PM. Forecasts change as rain falls and as upstream water arrives.
Get flood alerts for this river
An email when the National Weather Service forecasts Nassawango Creek near Snow Hill to flood, when it floods, and when it's over.
Flood stages
| Major flood stage | 8.5 ft |
| Moderate flood stage | 7.5 ft |
| Flood stage | 6.5 ft |
| Action stage | 6 ft |
| Record crest (August 19, 1989) | 9.07 ft |
What floods at each level
From the National Weather Service, highest first.
- 12.7 ftRiver stage sensor operating limit
- 8.5 ftSnow Hill Road, Maryland Highway 12, becomes impassable at Nassawango Creek due to high water over the bridge. Stage of the 50 year flood.
- 8 ftStage of the 25 year flood.
- 7.5 ftNumerous road closures due to flooding, including Mount Olive Church Road, Red House Road, Creek Road and Nassawango Road. Shallow flooding begins on Snow Hill Road, Maryland Highway 12, just north of town.
- 7 ftMount Olive Church Road, Red House Road and Creek Road become impassable due to high water. Water begins to flow across Nassawango Road, 1 mile upstream of the Pocomoke River.
- 6.5 ftWater begins to flow across Mount Olive Church Road, Red House Road and Creek Road.
- 6 ftWater begins to encroach on Mount Olive Church Road, Red House Road and Creek Road.
Highest crests on record
- 9.07 ft — August 19, 1989
- 8.95 ft — September 30, 2016
- 8.13 ft — January 29, 1998
- 8.1 ft — May 19, 2018
- 7.95 ft — February 26, 1979
Recent crests: 5.91 ft (March 18, 2025) · 6.55 ft (March 29, 2024) · 7.28 ft (March 7, 2024) · 7.28 ft (March 7, 2024) · 6.07 ft (March 3, 2024)
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (NSWM2); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.