Juniata River at Lewistown
Pennsylvania — Water Level & Flood Stage
Located in Mifflin County, Pennsylvania on the Juniata River. Live water level data from USGS gauge 01564895, updated every 15 minutes.
Current Water Level
Gage Height
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Streamflow
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Last Reading
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Flood Stages
Major Flood
28 ft
Moderate Flood
27 ft
Minor Flood
23 ft
Action Stage
18 ft
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
What Floods at Each Level
43.3 ft
Flood of record from June 1889. FEMA 0.2% Annual Chance Flood Level (500-year flood).
34.5 ft
FEMA 1% Annual Chance Flood Level (100-year flood). Widespread inundation occurs on both banks of the river. A large portion of Lewistown is affected by flood waters.
32 ft
The right, or south bank begins to overflow. Expect water up to 6 feet deep in houses on West Elizabeth Street. Expect water up to 2 feet deep in houses on South Main Street.
31 ft
FEMA 2% Annual Chance Flood Level (50-year flood).
30 ft
Widespread inundation occurs in and around Lewistown. Water reaches South Main Street.
28 ft
Considerable flood damage occurs to homes and businesses in and around lewistown.
27 ft
Several homes on West Elizabeth Street will flood. Route 22 is also affected.
25 ft
Basement flooding occurs in the low lying areas adjacent to the river and Kishacoquillas creek. Athletic fields will be inundated.
24.5 ft
FEMA 10% Annual Chance Flood Level (10-year flood).
23 ft
Basements of a few homes in the lowest lying areas will flood. Backwater on Kishacoquillas Creek will affect the athletic fields.
Impact statements from the National Weather Service, describing what typically happens at each water level.
7-Day Water Level Chart
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Historic Crests
| Date | Stage | Flow |
|---|---|---|
| May 31, 1889 | 43.3 ft | — |
| May 31, 1889 | 43.3 ft | — |
| Mar 17, 1936 | 43 ft | — |
| Mar 17, 1936 | 43 ft | — |
| Jun 22, 1972 | 42.1 ft | — |
About This Gauge
Get Flood Alerts for Juniata 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 Juniata River at Lewistown?
The Juniata River at Lewistown gauge is maintained by USGS (site 01564895) 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 Juniata River at Lewistown?
The NWS-defined flood stage for Juniata River at Lewistown is 23 feet. Action stage begins at 18 feet. Moderate flooding starts at 27 feet, and major flooding at 28 feet.
How do I get alerts when Juniata River rises?
Download StormCast free on Google Play, go to River Gauges, and add Juniata River at Lewistown 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 Juniata River at Lewistown gauge located?
The gauge is located in Mifflin County, Pennsylvania at coordinates 40.5944°N, 77.5828°W. USGS site number: 01564895. Data is provided by the U.S. Geological Survey and the National Weather Service.
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Source & Notes
Data provided by: US Geological Survey, Observations courtesy of U.S. Geological Survey
- Gauge reading may be affected by ice. Forecast flows are unadjusted for ice.