WB Susquehanna River at Williamsport water level

Name: WB Susquehanna River at Williamsport 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, WB Susquehanna River, Pennsylvania, United States

Directions

Below flood stage

Water level

2.00ft Steady over the last 24 hours

Measured Oct 20, 2026, 07:15 AM EDT (1 hour ago)

Flow: 4,040 cfs

History

7 days

Water level Forecast Minor flood stage

The forecast expects the river to fall to 1.30 ft by Thursday, October 22 at 08:00 AM. Issued Monday, October 19 at 10:21 AM by NOAA National Weather Service.

What this means

The gauge at WB Susquehanna River at Williamsport reads 2.00 ft, a normal level.

It is 18.00 ft below the flood stage of 20.00 ft.

It has barely moved over the past 24 hours. The forecast expects the river to fall to 1.30 ft by Thursday, October 22 at 08:00 AM. Over the past 30 days it has moved between 1.82 ft and 2.13 ft.

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

Key numbers

Highest on record: 34.75 ftJune 23, 1972
Forecast peak: 1.90 ftTuesday, October 20 at 08:00 AM

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 20.00 ft, still 18.00 ft away.

What happens at each level

45.00 ft: Flood waters begin to reach the Market Street Bridge in Williamsport.
41.00 ft: FEMA 0.2% Annual Chance Flood Level (500-year flood).
34.70 ft: Flood of record from Hurricane Agnes in 1972. FEMA 1% Annual Chance Flood Level (100-year flood).
34.00 ft: Widespread flooding occurs in areas not protected by the levee system.
33.00 ft: Flood waters begin to reach the Arch Street Bridge in Williamsport.
32.00 ft: Widespread flooding occurs in areas not protected by the levee system. The protective works for Route 220 are closed at this level. Flood waters begin to reach the Maynard Street Bridge in Williamsport.
31.50 ft: FEMA 2% Annual Chance Flood Level (50-year flood).
30.00 ft: Many homes and businesses outside the levee system are affected by high water.
23.00 ft: Low lying areas on both banks are inundated. FEMA 10% Annual Chance Flood Level (10-year flood).
21.00 ft: A number of residences and roads in the area outside the levee system are affected.
20.00 ft: High water affects a few homes and some roadways in areas not protected by the levee system. The camping area west of Williamsport is significantly affected.
2.00 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: 11 %.

Rank	Level	Date
1	34.75 ft	June 23, 1972
2	33.57 ft	March 18, 1936
3	32.40 ft	June 1, 1889
4	31.00 ft	May 21, 1884
5	29.60 ft	May 28, 1946
6	28.10 ft	November 26, 1950
7	27.82 ft	September 18, 2004
8	27.50 ft	March 17, 1865
9	27.25 ft	March 11, 1964
10	26.71 ft	January 20, 1996

Weather at the gauge

Rain in the last 3 days: 1.01 in. Rain that falls upstream can take hours or days to show up at a river gauge.

17 Sat 54° 41° – Wind 13 mph

18 Sun 57° 38° – Wind 5 mph

19 Mon 68° 42° – Wind 5 mph

20 Tue 65° 41° – Wind 11 mph

21 Wed 63° 37° – Wind 5 mph

22 Thu 64° 37° – Wind 8 mph

23 Fri 63° 40° – Wind 6 mph

Forecast: Open-Meteo

Sunrise 07:26 AM Sunset 06:21 PM Daylight 10 hr, 55 min First quarter 68%

Map

Other gauges on the WB Susquehanna River

Gauge	Level	Compared with normal	24 hours	Distance
WB Susquehanna River near CurwensvilleRiver gauge, WB Susquehanna River	425 cfs	Normal	−6.0 cfs	82 mi
WB Susquehanna River at KarthausRiver gauge, WB Susquehanna River	2.84 ft	Below flood stage	−0.35 ft	58 mi
WB Susquehanna River at Lock HavenRiver gauge, WB Susquehanna River	8.56 ft	Below flood stage	−0.11 ft	24 mi
WB Susquehanna River at Jersey ShoreRiver gauge, WB Susquehanna River	2.59 ft	Below flood stage	−0.14 ft	13 mi

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Lycoming Creek near WilliamsportRiver gauge, Lycoming Creek	1.70 ft	Very low	−0.03 ft	3.4 mi
Loyalsock Creek at LoyalsockvilleRiver gauge, Loyalsock Creek	1.31 ft	Below flood stage	−0.07 ft	8 mi
West Branch Susquehanna River at AllenwoodRiver gauge, West Branch Susquehanna River	8.48 ft	Below flood stage	+0.06 ft	10 mi
Lycoming Creek near Trout RunRiver gauge, Lycoming Creek	53.5 cfs	Normal	−5.3 cfs	13 mi
Muncy Creek near MuncyRiver gauge, Muncy Creek	7.61 ft	Normal	−0.10 ft	13 mi
W Br Susquehanna River at West MiltonRiver gauge, W Br Susquehanna River	2.10 ft	Normal	+0.10 ft	17 mi
Pine Creek below L Pine Creek near WatervilleRiver gauge, Pine Creek	203 cfs	Normal	−38.0 cfs	17 mi
West Branch Susquehanna River at LewisburgRiver gauge, West Branch Susquehanna River	2.85 ft	Below flood stage	+0.12 ft	20 mi

Questions and answers

What is flood stage for the WB Susquehanna River at Williamsport?

The official flood stage is 20.00 ft. The level is currently 18.00 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 WB Susquehanna River at Williamsport today?

On Oct 20, 2026, 07:15 AM EDT, the water level was 2.00 ft. Steady over the last 24 hours.

Is WB Susquehanna River at Williamsport rising or falling?

Steady over the last 24 hours.

Is the level of WB Susquehanna River at Williamsport normal?

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

What is the highest water level ever recorded at WB Susquehanna River at Williamsport?

The highest level on record is 34.75 ft on June 23, 1972.

Is WB Susquehanna River at Williamsport expected to rise?

The forecast expects the river to fall to 1.30 ft by Thursday, October 22 at 08:00 AM.

For specialists

Station codes, datum, parameters, data quality and downloads

Operator: U.S. Geological Survey
Station code: usgs:01551500 (Agency page)
Coordinates: 41.23612, -76.99661 (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	2.00 ft	2026-10-20 11:15	Provisional
Flow	4,040 cfs	2026-10-20 11:15	Provisional

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How to cite

U.S. Geological Survey: WB Susquehanna River at Williamsport (usgs:01551500). Accessed October 20, 2026 via Nivelmap, https://nivelmap.com/en/united-states/pennsylvania/wb-susquehanna-river-at-williamsport

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