Harry Strunk Lake, Nebr. — storage

Storage now, against this reservoir's own record

23.79 Mm³

Stored, September 1994

46th

Percentile among 29 Seps on record

-50.0%

Change over the 12 months to 1994-09

Storage in September 1994 was around the middle of the Sep record, ranked against 29 other Seps held for this reservoir.

No percentage departure from the Sep average is published here. No long-term average is held for this month, so there is nothing to compare with.

Storage, 1965–1994

Monthly mean storage

348 monthly values, 1965 to 1994

Monthly means of the publisher's daily record. Volume, not percentage of capacity — see below for why.

What the shaded periods are (0 events)

Not shown on this chart

The 1976 drought — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
The 2022 drought — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
Yorkshire drought — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
Cantareira water crisis, São Paulo — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
Cape Town Day Zero — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
European drought — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.

View the data behind this chart

240 of 348 periods, evenly spaced across the record. Every value is in the download and the API; a table of all 348 would be longer than this page and unusable with a screen reader.
Period	Harry Strunk Lake Near Cambridge, Nebr. (Mm³)
October 1965	44.1
November 1965	45.8
January 1966	45.6
February 1966	45.8
April 1966	45.8
May 1966	47.1
July 1966	42.9
August 1966	45.6
October 1966	48.0
November 1966	45.7
January 1967	45.9
February 1967	45.9
March 1967	46.0
May 1967	46.2
June 1967	49.7
August 1967	42.8
September 1967	40.4
November 1967	45.7
December 1967	45.8
February 1968	46.0
March 1968	46.0
April 1968	46.3
June 1968	46.9
July 1968	40.9
September 1968	30.3
October 1968	32.4
December 1968	39.0
January 1969	42.3
March 1969	47.5
April 1969	46.5
June 1969	49.5
July 1969	44.2
August 1969	36.2
October 1969	38.3
November 1969	43.0
January 1970	46.7
February 1970	46.7
April 1970	46.3
May 1970	46.3
July 1970	33.3
August 1970	20.6
October 1970	22.1
November 1970	25.7
December 1970	29.3
February 1971	36.7
March 1971	41.4
May 1971	47.0
June 1971	46.3
August 1971	27.0
September 1971	23.4
November 1971	30.6
December 1971	34.6
January 1972	38.3
March 1972	45.5
April 1972	47.2
June 1972	47.0
July 1972	41.8
September 1972	23.2
October 1972	25.6
December 1972	33.1
January 1973	37.6
March 1973	46.4
April 1973	46.9
May 1973	46.8
July 1973	33.8
August 1973	27.1
October 1973	25.7
November 1973	29.6
January 1974	37.7
February 1974	42.0
April 1974	47.6
May 1974	46.9
July 1974	32.5
August 1974	20.0
September 1974	18.5
November 1974	23.8
December 1974	27.1
February 1975	34.1
March 1975	38.0
May 1975	45.4
June 1975	48.5
August 1975	31.1
September 1975	23.8
November 1975	28.7
December 1975	32.5
January 1976	36.3
March 1976	44.0
April 1976	47.0
June 1976	45.6
July 1976	32.3
September 1976	12.8
October 1976	15.4
December 1976	21.5
January 1977	24.5
February 1977	27.8
April 1977	38.2
May 1977	45.3
July 1977	38.5
August 1977	28.0
October 1977	29.4
November 1977	32.2
January 1978	38.8
February 1978	42.2
April 1978	46.2
May 1978	46.2
June 1978	47.1
August 1978	16.2
September 1978	10.1
November 1978	14.4
December 1978	17.5
February 1979	24.2
March 1979	30.9
May 1979	39.3
June 1979	41.5
August 1979	45.6
September 1979	43.5
October 1979	44.2
December 1979	44.9
January 1980	45.2
March 1980	45.3
April 1980	48.0
June 1980	48.2
July 1980	37.1
September 1980	14.4
October 1980	16.1
November 1980	18.7
January 1981	24.9
February 1981	27.9
April 1981	36.0
May 1981	40.2
July 1981	42.9
August 1981	47.2
October 1981	46.1
November 1981	47.7
January 1982	44.6
February 1982	45.1
March 1982	45.3
May 1982	48.6
June 1982	49.1
August 1982	36.9
September 1982	36.0
November 1982	41.6
December 1982	44.5
February 1983	45.0
March 1983	46.5
May 1983	49.5
June 1983	49.1
July 1983	46.3
September 1983	27.2
October 1983	28.4
December 1983	34.5
January 1984	38.0
March 1984	46.4
April 1984	49.3
June 1984	49.2
July 1984	48.2
August 1984	34.5
October 1984	27.8
November 1984	31.3
January 1985	38.5
February 1985	42.7
April 1985	48.4
May 1985	48.7
July 1985	42.9
August 1985	35.9
October 1985	28.8
November 1985	31.7
December 1985	34.7
February 1986	41.9
March 1986	43.7
May 1986	45.5
June 1986	46.6
August 1986	23.9
September 1986	19.7
November 1986	25.1
December 1986	28.1
February 1987	34.5
March 1987	38.5
April 1987	42.8
June 1987	46.6
July 1987	43.1
September 1987	25.8
October 1987	27.7
December 1987	34.7
January 1988	37.7
March 1988	42.9
April 1988	43.2
June 1988	43.6
July 1988	32.0
August 1988	26.1
October 1988	27.6
November 1988	30.3
January 1989	36.6
February 1989	39.8
April 1989	43.8
May 1989	45.6
July 1989	39.3
August 1989	23.8
September 1989	21.2
November 1989	26.2
December 1989	29.0
February 1990	36.0
March 1990	40.0
May 1990	45.3
June 1990	45.4
August 1990	20.1
September 1990	16.8
November 1990	21.1
December 1990	24.0
January 1991	26.5
March 1991	32.9
April 1991	36.3
June 1991	45.6
July 1991	33.4
September 1991	16.4
October 1991	17.3
December 1991	23.3
January 1992	26.9
March 1992	34.0
April 1992	37.1
May 1992	39.4
July 1992	39.0
August 1992	36.8
October 1992	38.0
November 1992	40.8
January 1993	43.2
February 1993	43.0
April 1993	43.4
May 1993	46.0
June 1993	47.3
August 1993	50.1
September 1993	47.6
November 1993	45.3
December 1993	42.7
February 1994	43.2
March 1994	43.6
May 1994	48.3
June 1994	46.5
August 1994	28.7
September 1994	23.8

Why this page shows a volume and not a percentage

Percentage full is a division, and the denominator is missing

“Percentage full” is the figure a drought is discussed in, and it is stored volume divided by capacity. Capacity is published on several different bases — gross, usable, live, and the figure at a particular spillway or licence condition — and dividing a stored volume by the wrong one produces a percentage confidently wrong by the ratio between them, at exactly the moment the number matters most.

Hydrionis holds storage measurements for this reservoir and does not hold a compatible authoritative capacity figure for it, so percentage full is not calculated. The volume above is what was actually measured. Where you need a percentage, take the publisher’s own capacity on its own stated basis and divide it yourself — the source is linked below, and knowing which basis you used is the whole point.

Rate and persistence

-1.98 Mm³

Mean drawdown per month over 12 months

0 of 24

Recent months below the 20th percentile for their own month

Rates are computed only across an unbroken run of months, so a rate is never divided by a period in which some of the change was not observed. Percentile counts compare each month with the same calendar month in every other year held.

Location

Harry Strunk Lake Near Cambridge, Nebr.

Gauge location

About this data

Everything below is a property of the data rather than a rating of it. There is deliberately no single confidence score: how much a gap matters depends on what you are about to do with the series, and only you know that.

Source	United States Geological Survey — National Water Information System · US Government work — public domain
How the values came to exist	Measured
Period held	1965–1994
Completeness	96.7% of the periods in that span are held. Gaps are drawn as breaks and never interpolated.
Known gaps	Storage is a managed quantity. A falling line can be a rule curve, a scheduled release or a transfer to another system rather than a shortage of water, and nothing here distinguishes them. No capacity figure on a stated basis is held for this reservoir, so no percentage of capacity is computed.
Continuity	97% of the months between 1965 and 1994 are held. Monthly means of the publisher's own daily record.
Last read from the publisher	2026-10-01
Redistribution	Permitted by the upstream licences
Commercial reuse	Permitted by the upstream licences. No Hydrionis access tier can widen this.
Methodology	How this was produced

Use this data

Machine-readable JSON /api/v1/observations/by-subject/reservoir-usgs-06842000.json
How to cite this, and who you must credit
How these figures were produced
Request this at a different scale, format or geography

No bulk download is offered here, which is a licence position rather than a product one: at least one contributing publisher does not permit redistribution. The values can be read on the page, cited, and pointed to at source.

Attribution and citation

Suggested citation for Hydrionis

Hydrionis (2026), Harry Strunk Lake Near Cambridge, Nebr. reservoir records, accessed 2026-10-05, hydrionis.com/reservoirs/reservoir-usgs-06842000/

Cite Hydrionis where you rely on the compilation, the normalisation, the eligibility judgements or a chart. Where you use an unmodified published value, the publisher’s attribution is the one that is required; crediting Hydrionis as well is welcome and is not something Hydrionis can require of you.

Recommended, not required. Hydrionis does not claim rights over unmodified public data it relayed, and doing arithmetic on somebody else’s measurements does not make them Hydrionis’s. Cite the version and the access date: the Harry Strunk Lake Near Cambridge, Nebr. record changes as publishers release and as methods are revised, and a citation without both cannot be checked later. Full guidance is on cite and reuse.

None of the contributing licences requires attribution. Crediting the publishers is still good practice and they are listed above.

Where this comes from

348 monthly observations 1965–1994 Mm³

Spatially aggregatedHigh confidenceSeptember 1994

Source: USGS — National Water Information System, 06842000. Licence: Open.

Method: Monthly mean of daily reservoir storage published by the USGS in acre-feet and converted to millions of cubic metres. Months with fewer than 20 days of record are not published rather than averaged from a partial month.

Reservoir storage is managed as well as observed: a drawdown may reflect an operating rule, flood-control rule curve or scheduled release rather than a shortage. Compare a month against the same month in other years, and do not read a fall as a supply signal without knowing the operating regime.

Retrieved 1 October 2026.

Monthly mean of daily reservoir storage published by the USGS in acre-feet and converted to millions of cubic metres. Months with fewer than 20 days of record are not published rather than averaged from a partial month.