States

Kirwin Reservoir

Kansas · Reclamation gauge
1,7041,7061,7081,7101,712
Grey bar: 12-month range 1,703.8–1,712.3 ft.
Water level · NGVD29
1,704.22FT
Storage 17,460 acre-feet
The source publishes no % full figure.
7 days +0.25 ft30 days +0.38 ft
Reading for Oct 24, 2026 · page refreshed Oct 25, 21:16 UTC
Source: U.S. Bureau of Reclamation (RISE)
Worth going today?This Afternoon
Looks good
Light wind, dry
Wind5 mph
Rain29%
Temp70°F
Level1,704.2 ft
This AfternoonChance Rain Showers · 70°F
ESE 5 mph · rain 29%
TonightShowers And Thunderstorms · 54°F
ENE 5 to 10 mph · rain 92%
NWS forecast for the gauge location. Good = wind ≤ 10 mph and rain ≤ 30%; storms are flagged. Not safety advice – check local conditions, closures and warnings.

Level history

1,703.51,704.01,704.5ftSep 24Oct 2Oct 9Oct 16Oct 24
1,703.51,704.01,704.5ftSep 24Oct 9Oct 24
1,7041,7061,7081,7101,712ftDec 2025Mar 2026May 2026Aug 2026Oct 2026
1,7041,7061,7081,7101,712ftDec 2025May 2026Oct 2026

Field notes

On Oct 24, 2026, Kirwin Reservoir was at 1,704.22 (NGVD29) ft.

Reclamation reports storage of 17,460 acre-feet for the same day.

Over the past 7 days the lake has been rising (+0.25 ft), and it is +0.38 ft over 30 days.

Readings come from the Bureau of Reclamation's daily reservoir data for Kirwin Reservoir and Dam.

Lake facts

Storage (latest)17,460 acre-feet
Gauge / stationKirwin Reservoir and Dam
Elevation datumft (NGVD29)
Gauge location39.6636, -99.1247

Nearby lakes

Webster Reservoir25 mi SW1,865.58 ft−0.06 ftHarlan County Lake29 mi N · NE1,932.81 ft+0.03 ftCawker City Dike38 mi E1,447.24 ft−0.72 ftKeith Sebelius Lake44 mi W2,288.87 ft−0.06 ftWaconda Lake45 mi E1,456.85 ft−0.13 ft

Common questions

Is Kirwin Reservoir rising or falling?

Over the last 7 days it changed +0.25 ft and over 30 days +0.38 ft.

How full is Kirwin Reservoir?

Reclamation publishes the water surface elevation for this gauge but not a percent-full figure, so we don't show one rather than estimate it.

How often is this page updated?

The page is rebuilt automatically every day from Reclamation's published data. Values can be revised later by the source agency.

Where does the data come from?

The U.S. Bureau of Reclamation's RISE data portal (data.usbr.gov). Forecasts come from the National Weather Service.

Daily values published by the Bureau of Reclamation. Reclamation data are provisional and subject to revision unless otherwise noted. This page is not affiliated with or endorsed by the Bureau of Reclamation. See data sources.