Prompton Reservoir at Prompton water level

Name: Prompton Reservoir at Prompton water level (U.S. Geological Survey)
Creator: U.S. Geological Survey
License: https://www.usgs.gov/information-policies-and-instructions/copyrights-and-credits

Reservoir, Prompton Reservoir, Pennsylvania, United States

Directions

High for mid-October

Surface elevation

1,125.22ft Down 0.11 ft over the last 24 hours

Measured Oct 19, 2026, 02:30 PM EDT (59 min ago)

History

What this means

Prompton Reservoir at Prompton is above normal at 1,125.22 ft.

The median for mid-October is 1,124.83 ft, based on 7 years of readings, so the lake level is 0.39 ft above typical. On the same day last year the reading was 1,123.45 ft, a difference of +1.77 ft.

It has dropped 0.11 ft over the past 24 hours. In the last month it has stayed between 1,123.61 ft and 1,125.74 ft.

Many reservoirs are drawn down through summer and fall; most of the refill comes later, with winter rain or spring snowmelt.

Compared with 7 years of daily readings for this time of year. How to read levels

Key numbers

Median for this date: 1,124.83 ft0.39 ft above the median for this date
Normal for this date: 1,123.44 ft – 1,125.40 ft8 years in 10 fall in this range (7 years of records)
Same day last year: 1,123.45 ft+1.77 ft
Lowest and highest in 30 days: 1,123.61 ft – 1,125.74 ft
Lowest and highest in 12 months: 1,123.38 ft – 1,128.76 ft
Highest on record: 1,156.44 ftJune 28, 2006

On the water at Prompton Reservoir at Prompton

With the level a bit above normal, expect a shoreline slightly higher up than usual and the odd floating branch.

Wear a life jacket on the water. Most boating deaths involve people who were not wearing one.

What happens at each level

1,205.00 ft: The level at which the reservoir begins to spill. The emergency spillway is an ungated, excavated channel located along the reservoir rim. Discharge through the emergency spillway is uncontrolled and intended to prevent overtopping and catastrophic failure of the dam during a high water event. Significant flooding can occur during spillway flow. Please pay attention to messaging from your local authorities if water is observed flowing through the spillway.
1,125.22 ft: Right now

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

Weather at the gauge

Rain in the last 3 days: 0.34 in.

17 Sat 49° 35° – Wind 16 mph

18 Sun 55° 33° – Wind 5 mph

19 Mon 63° 36° – Wind 6 mph

20 Tue 63° 40° – Wind 12 mph

21 Wed 60° 35° – Wind 7 mph

22 Thu 59° 36° – Wind 11 mph

23 Fri 59° 38° – Wind 7 mph

Forecast: Open-Meteo

Sunrise 07:18 AM Sunset 06:16 PM Daylight 10 hr, 57 min First quarter 61%

Map

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
West Branch Lackawaxen River at PromptonRiver gauge, West Branch Lackawaxen River	74.9 cfs	Normal	−13.0 cfs	0.1 mi
Dyberry Creek near HonesdaleRiver gauge, Dyberry Creek	2.08 ft	Below flood stage	−0.05 ft	3.4 mi
Lackawaxen River near HonesdaleRiver gauge, Lackawaxen River	1.68 ft	Below flood stage	−0.10 ft	4.5 mi
Dyberry Creek at Tanners Falls near DyberryRiver gauge, Dyberry Creek	46.6 cfs	Normal	−4.9 cfs	5.0 mi
West Branch Lackawaxen River near AldenvilleRiver gauge, West Branch Lackawaxen River	0.80 ft	Below flood stage	−0.07 ft	6 mi
Lackawanna River near Forest CityRiver gauge, Lackawanna River	57.6 cfs	Normal	−12.6 cfs	10 mi
Stillwater Lake near Forest CityLake, Stillwater Lake	1,573.61 ft	Normal	−0.24 ft	11 mi
Lackawaxen River at HawleyRiver gauge, Lackawaxen River	2.35 ft	Below flood stage	−0.17 ft	11 mi

Questions and answers

Is Prompton Reservoir at Prompton higher than last year?

Yes, it is 1.77 ft higher than on the same day last year, when the reading was 1,123.45 ft.

What is a normal level for Prompton Reservoir at Prompton in mid-October?

The median for mid-October is 1,124.83 ft. In 8 years out of 10 the reading falls between 1,123.44 ft and 1,125.40 ft, based on 7 years of records.

Is Prompton Reservoir at Prompton really 1,125.22 ft deep?

No. 1,125.22 ft is the height of the water surface above sea level (or the agency's vertical datum), not the depth of the water.

What is the water level of Prompton Reservoir at Prompton today?

On Oct 19, 2026, 02:30 PM EDT, the surface elevation was 1,125.22 ft. Down 0.11 ft over the last 24 hours.

Is Prompton Reservoir at Prompton rising or falling?

Down 0.11 ft over the last 24 hours. Down 0.06 ft over the last 7 days.

Is the level of Prompton Reservoir at Prompton normal?

High for mid-October. Compared with 7 years of daily readings for this time of year.

What is the highest water level ever recorded at Prompton Reservoir at Prompton?

The highest level on record is 1,156.44 ft on June 28, 2006.

For specialists

Station codes, datum, parameters, data quality and downloads

Operator: U.S. Geological Survey
Station code: usgs:01428900 (Agency page)
Coordinates: 41.58842, -75.32712 (WGS84)
Vertical datum: local
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
Surface elevation	1,125.22 ft	2026-10-19 18:30	Provisional

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How to cite

U.S. Geological Survey: Prompton Reservoir at Prompton (usgs:01428900). Accessed October 19, 2026 via Nivelmap, https://nivelmap.com/en/united-states/pennsylvania/prompton-reservoir-at-prompton

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