Little Lehigh Creek at Allentown, PA
River level and flood forecast · Lehigh County
Normal2.7 ftas of Mon 3:45 PM
The river is 5.3 ft below flood stage (8 ft).
Flow: 165 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.
Flood stages
| Major flood stage | 12 ft |
| Moderate flood stage | 10 ft |
| Flood stage | 8 ft |
| Action stage | 6 ft |
| Record crest (August 4, 2020) | 12.69 ft |
What floods at each level
From the National Weather Service, highest first.
- 12 ftFlooding expands along Martin Luther King Jr. Drive.
- 11 ftPortions of the Little Lehigh Parkway pathways in Little Lehigh Park are damages or destroyed.
- 10 ftWater is several feet deep on Martin Luther King Jr. Drive near Lehigh Street. Businesses are flooded.
- 9 ftFish Hatchery Road is flooded.
- 8 ftMartin Luther King Jr. Drive begins to flood near Lehigh Street.
- 7 ftThe Fountain Park pathway floods.
- 6 ftFountain Park begins to flood.
Highest crests on record
- 12.69 ft — August 4, 2020
- 11.05 ft — October 8, 2005
- 10.65 ft — September 18, 2004
- 9.88 ft — August 28, 2011
- 9.6 ft — September 2, 2021
Recent crests: 9.6 ft (September 2, 2021) · 12.69 ft (August 4, 2020) · 8 ft (November 3, 2018) · 5.83 ft (September 7, 2011) · 9.88 ft (August 28, 2011)
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (APAP1); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.