West Branch Susquehanna River at Lewisburg water level

Name: West Branch Susquehanna River at Lewisburg water level (U.S. Geological Survey)
Creator: U.S. Geological Survey
License: https://www.usgs.gov/information-policies-and-instructions/copyrights-and-credits

River gauge, West Branch Susquehanna River, Pennsylvania, United States

Directions

Below flood stage

Water level

2.76ft Steady over the last 24 hours

Measured Oct 20, 2026, 05:45 PM EDT (39 min ago)

Flow: 4,560 cfs

History

7 days

Water level Forecast Minor flood stage

The forecast expects the river to fall to 2.40 ft by Thursday, October 22 at 02:00 PM. Issued Tuesday, October 20 at 10:41 AM by NOAA National Weather Service.

What this means

The gauge at West Branch Susquehanna River at Lewisburg reads 2.76 ft, a normal level.

It is 15.24 ft below the flood stage of 18.00 ft.

It has barely moved over the past 24 hours. The forecast expects the river to fall to 2.40 ft by Thursday, October 22 at 02:00 PM. Over the past 30 days it has moved between 2.70 ft and 3.11 ft.

Judged against the official flood stage for this gauge. How to read levels

Key numbers

Highest on record: 34.23 ftJune 24, 1972
Forecast peak: 2.80 ftTuesday, October 20 at 02:00 PM

What the stage means on the water

A normal level is usually prime time for floating and wade fishing, as long as the weather holds upstream.

The National Weather Service puts flood stage for this gauge at 18.00 ft, still 15.24 ft away.

What happens at each level

40.00 ft: Approximate level of the FEMA 0.2% Annual Chance Flood level (500-year flood).
34.20 ft: Flood of record from Hurricane Agnes in 1972.
32.50 ft: Approximate level of the FEMA 1% Annual Chance Flood level (100-year flood).
32.00 ft: Flood waters begin to reach the Market Street Bridge. The intersection of 4th and Catherine Streets is inundated. A significant portion of Lewisburg is inundated.
30.00 ft: Approximate level of the FEMA 2% Annual Chance Flood level (50-year flood).
28.00 ft: The right, or west bank overflows and affects Lewisburg. Widespread inundation on the left bank affects several mobile home parks. Many residences and businesses on both banks are affected by flood waters.
25.50 ft: Approximate level of the FEMA 10% Annual Chance Flood level (10-year flood).
25.00 ft: Low lying areas on the right, or west bank are affected. The left bank continues to experience inundation.
23.00 ft: The mobile home park along Route 405 downstream of the bridge will flood.
21.00 ft: The left, or east bank experiences substantial overflow.
19.00 ft: Route 405 is affected downstream of the Lewisburg Bridge.
18.00 ft: The left, or east bank overflows. Low lying areas will flood.
2.76 ft: Right now

Impact statements from the U.S. National Weather Service.

Highest crests on record

Chance of at least minor flooding in October to December: 13 %.

Rank	Level	Date
1	34.23 ft	June 24, 1972
2	28.43 ft	May 29, 1946
3	27.62 ft	September 27, 1975
4	26.16 ft	March 11, 1964
5	26.05 ft	November 26, 1950
6	26.01 ft	September 19, 2004
7	25.94 ft	January 20, 1996
8	25.91 ft	September 8, 2011
9	24.26 ft	February 15, 1984
10	23.44 ft	March 6, 1979

Weather at the gauge

No rain in the last 3 days.

20 Tue 68° 38° – Wind 9 mph

21 Wed 62° 38° – Wind 6 mph

22 Thu 64° 36° – Wind 12 mph

23 Fri 59° 40° – Wind 6 mph

24 Sat 59° 35° – Wind 6 mph

25 Sun 63° 37° – Wind 6 mph

26 Mon 67° 42° – Wind 3 mph

Forecast: Open-Meteo

Sunrise 07:25 AM Sunset 06:21 PM Daylight 10 hr, 56 min Waxing gibbous 72%

Map

Other gauges on the West Branch Susquehanna River

Gauge	Level	Compared with normal	24 hours	Distance
West Branch Susquehanna River at BowerRiver gauge, West Branch Susquehanna River	406 cfs	Normal	−50.0 cfs	94 mi
West Branch Susquehanna River at HydeRiver gauge, West Branch Susquehanna River	657 cfs	High	−11.0 cfs	82 mi
West Branch Susquehanna River at RenovoRiver gauge, West Branch Susquehanna River	1.42 ft	Below flood stage	−0.21 ft	52 mi
West Branch Susquehanna River at AllenwoodRiver gauge, West Branch Susquehanna River	8.40 ft	Below flood stage	−0.09 ft	10 mi

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
W Br Susquehanna River at West MiltonRiver gauge, W Br Susquehanna River	2.01 ft	Normal	−0.05 ft	3.6 mi
Chillisquaque Creek near Potts GroveRiver gauge, Chillisquaque Creek	44.2 cfs	Normal	−5.7 cfs	4.0 mi
Susquehanna River above Dam at SunburyRiver gauge, Susquehanna River	3.06 ft	Normal	−0.01 ft	9 mi
Susquehanna River at SunburyRiver gauge, Susquehanna River	7.63 ft	Normal	−0.02 ft	10 mi
Penns Creek at Penns CreekRiver gauge, Penns Creek	2.23 ft	Below flood stage	−0.04 ft	11 mi
Chillisquaque Creek at WashingtonvilleRiver gauge, Chillisquaque Creek	0.72 ft	Below flood stage	−0.04 ft	12 mi
Susquehanna River at DanvilleRiver gauge, Susquehanna River	3.49 ft	Below flood stage	−0.03 ft	13 mi
Muncy Creek near MuncyRiver gauge, Muncy Creek	7.56 ft	Normal	−0.10 ft	18 mi

Questions and answers

What is flood stage for the West Branch Susquehanna River at Lewisburg?

The official flood stage is 18.00 ft. The level is currently 15.24 ft below it.

Is gage height the same as water depth?

No. Gage height is measured from a fixed reference point chosen by the agency, so a reading of 10 ft does not mean the river is 10 ft deep.

What is the water level of West Branch Susquehanna River at Lewisburg today?

On Oct 20, 2026, 05:45 PM EDT, the water level was 2.76 ft. Steady over the last 24 hours.

Is West Branch Susquehanna River at Lewisburg rising or falling?

Steady over the last 24 hours.

Is the level of West Branch Susquehanna River at Lewisburg normal?

Below flood stage. Judged against the official flood stage for this gauge.

What is the highest water level ever recorded at West Branch Susquehanna River at Lewisburg?

The highest level on record is 34.23 ft on June 24, 1972.

Is West Branch Susquehanna River at Lewisburg expected to rise?

The forecast expects the river to fall to 2.40 ft by Thursday, October 22 at 02:00 PM.

For specialists

Station codes, datum, parameters, data quality and downloads

Operator: U.S. Geological Survey
Station code: usgs:01553500 (Agency page)
Coordinates: 40.96751, -76.87633 (WGS84)
Vertical datum: NAVD88
Update interval: every 15 minutes
Licence: Public domain. Data: U.S. Geological Survey (USGS), provisional data subject to revision

Published series

Parameter	Last value	Time (UTC)	Quality
Water level	2.76 ft	2026-10-20 21:45	Provisional
Flow	4,560 cfs	2026-10-20 21:45	Provisional

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How to cite

U.S. Geological Survey: West Branch Susquehanna River at Lewisburg (usgs:01553500). Accessed October 20, 2026 via Nivelmap, https://nivelmap.com/en/united-states/pennsylvania/west-branch-susquehanna-river-at-lewisburg

How we check values

Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.

Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer