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Kirwin Reservoir water level

Reservoir, Kansas, United States

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Right now

Very low for mid-October

Surface elevation

1,704.24ft Down 0.05 ft over the last 7 days

Water stored
17,490 acre‑ft
1,710 1,720 1,730
Surface elevation: 1,704.24 ft. Very low for mid-October.

History

History
1,7101,7201,730ftOct 10Oct 11Oct 12Oct 13Oct 151,7101,7201,730ftOct 10Oct 12Oct 15
1,7101,7201,730ftSep 17Sep 24Oct 1Oct 8Oct 151,7101,7201,730ftSep 17Oct 1Oct 15
1,7101,7201,730ftOct 2025Jan 2026Apr 2026Jul 2026Oct 20261,7101,7201,730ftOct 2025Apr 2026Oct 2026
1,7101,7201,730ftOct 2016Apr 2019Oct 2021Apr 2024Oct 20261,7101,7201,730ftOct 2016Oct 2021Oct 2026
1,7101,7201,730ftJanMarMayJulSepNov20261,7101,7201,730ftJanAprJulOct2026

202120222023202420252026

Surface elevation Normal range (10–90 %)

What this means

Kirwin Reservoir is far below normal for mid-October, with the lake level at 1,704.24 ft.

The median for mid-October is 1,723.36 ft, based on 36 years of readings, so the lake level is 19.12 ft below typical. On the same day last year the reading was 1,711.64 ft, a difference of −7.40 ft.

It has dropped 0.05 ft over the past week. With the water still dropping, the shoreline keeps moving out. In the last month it has stayed between 1,703.82 ft and 1,704.29 ft.

Many reservoirs reach their low point of the year in fall, before winter rain and snow start the refill.

Compared with 36 years of daily readings for this time of year. How to read levels

Key numbers

Median for this date
1,723.36 ft19.12 ft below the median for this date
Normal for this date
1,705.05 ft – 1,730.07 ft8 years in 10 fall in this range (36 years of records)
Same day last year
1,711.64 ft−7.40 ft
Lowest and highest in 30 days
1,703.82 ft – 1,704.29 ft
Lowest and highest in 12 months
1,703.82 ft – 1,712.30 ft

On the water at Kirwin Reservoir

A receding shoreline opens up beaches but also uncovers hazards: stumps, rocks and soft mud that are usually well under water.

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

Weather at the gauge

The forecast is not available right now.

Sunrise 07:48 AM Sunset 06:57 PM Daylight 11h 9m First quarter 34 %

Map

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
Nf Solomon River at GladeRiver gauge, Nf Solomon River 2.57 ft Normal 0.00 ft 10 mi
Bow Creek near StocktonRiver gauge, Bow Creek 3.93 ft Normal −0.05 ft 11 mi
Sf Solomon River at WoodstonRiver gauge, Sf Solomon River 3.85 ft Low −0.06 ft 16 mi
Nf Solomon River at PortisRiver gauge, Nf Solomon River 3.96 ft Normal −0.05 ft 24 mi
Webster ReservoirReservoir 1,865.64 ft Low 25 mi
Sf Solomon River at OsborneRiver gauge, Sf Solomon River 3.56 ft Normal +0.06 ft 28 mi
Harlan County Lake Near Republican CityLake 1,932.84 ft Below flood stage 29 mi
Prairie Dog Creek near WoodruffRiver gauge, Prairie Dog Creek 1.69 ft Normal 29 mi

Questions and answers

Is Kirwin Reservoir higher than last year?

No, it is 7.40 ft lower than on the same day last year, when the reading was 1,711.64 ft.

How often is Kirwin Reservoir updated?

Once a day. The source, U.S. Bureau of Reclamation, publishes a single daily value; the latest is from Oct 15, 2026.

What is the water level of Kirwin Reservoir today?

On Oct 15, 2026, the surface elevation was 1,704.24 ft. Down 0.05 ft over the last 7 days.

Is Kirwin Reservoir rising or falling?

Down 0.05 ft over the last 7 days.

Is the level of Kirwin Reservoir normal?

Very low for mid-October. Compared with 36 years of daily readings for this time of year.

How often is this data updated?

U.S. Bureau of Reclamation publishes a new reading once a day. This page refreshes within minutes of each update.

Where does this data come from?

The values come directly from U.S. Bureau of Reclamation, the official operator of this gauge, and are published under the Public domain. We do not estimate or model live values.

For specialists

Station codes, datum, parameters, data quality and downloads
Operator
U.S. Bureau of Reclamation
Station code
usbr:391 (Agency page)
Coordinates
39.66360, -99.12470 (WGS84)
Update interval
once a day
Licence
Public domain. Data: U.S. Bureau of Reclamation (RISE), provisional data subject to revision

Published series

ParameterLast valueTime (UTC)Quality
Surface elevation elevation 1,704.24 ft 2026-10-15 05:00 Provisional
Water stored storage 17,490 acre‑ft 2026-10-15 05:00 Provisional

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How to cite

U.S. Bureau of Reclamation: Kirwin Reservoir (usbr:391). Accessed October 16, 2026 via Nivelmap, https://nivelmap.com/en/united-states/kansas/kirwin-reservoir

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.