HydrionisGlobal Water Intelligence
HUC8 subbasin

Upper Arkansas-Lake Meredith

2 monitoring stations within this area in United States, holding 310 values between 1894 and 2026. A United States federal hydrologic unit at the eight-digit subbasin level — a drainage area, not a river. Many subbasins take the name of the largest river within them, and the gauges below are anywhere inside the area, including on tributaries.

United StatesHUC8 subbasin

The monitoring network within this area

Hydrionis holds 310 values from 2 gauges within it. Discharge is a property of a gauge and its reach, not of this drainage area, so this page reports the network and its records rather than a single figure.

2
Gauges
310
Values held
1894–2026
Record spans
Gauges within the Upper Arkansas-Lake Meredith huc8 subbasin
2 monitoring points, positioned as the publisher records them.
Gauges within the Upper Arkansas-Lake Meredith huc8 subbasinTIMPAS CREEK AT MOUTH NEAR SWINK, CO., ARKANSAS RIVER AT LA JUNTA, COTIMPAS CREEK AT MOUTH NEAR SWINK, CO.ARKANSAS RIVER AT LA JUNTA, CO

Flood peaks, as measured

This gauge's flood record, as measured. Unlike a daily mean it is the discharge at the moment the river was highest, which is the figure flood frequency analysis is built on.

Largest measured flow of each year at ARKANSAS RIVER AT LA JUNTA, CO
The highest instantaneous discharge the publisher recorded in each year — a flood peak as measured, not a daily average of one. 1894–2007.
Shading marks when something was recorded, not what caused the line.
Largest measured flow of each year at ARKANSAS RIVER AT LA JUNTA, COLargest measured flow of each year at ARKANSAS RIVER AT LA JUNTA, CO: ARKANSAS RIVER AT LA JUNTA, CO in m³/s, from 1894 to 2007.Hurricane Katrina water and sanitation collapse02,0004,0006,000m³/s18941927193919521964197619892003

Published by the gauge's own operator from its sub-daily record; Hydrionis stores the figure rather than recomputing it. A year the gauge did not cover produces no value rather than a low one, and the gaps are stated below the chart. A peak is a property of this gauge and its reach: a larger flood upstream or downstream of it is not in this series.

What the shaded periods are (1 event)

A shaded period marks when something was recorded, not what caused the shape of the line. Where the two coincide, they coincided.

Documented record — A documented event, compiled from cited sources after it happened. The dates are as good as the record, which for older events can mean the month rather than the day.

EventTypePeriodStandingAuthority
Hurricane Katrina water and sanitation collapseFlood2005-08-29 – 2005-09-30Documented record
Compiled record

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
Underlying data
PeriodARKANSAS RIVER AT LA JUNTA, CO (m³/s)
1894850
1912595
191734.3
1918122
1919142
192053.0
19215,663
192247.3
19231,699
192483.3
1925374
192673.6
1927328
1928411
1929490
1930140
193125.5
1932176
1933518
1934357
1935521
1936934
1937617
1938379
1939182
1940125
1941116
1942985
1944219
1945365
1946185
1947362
1948447
1949207
1950552
1951790
1952143
1953501
1954275
19551,416
1956142
1957496
1958578
195919.3
1960279
1961193
1962223
1963159
196474.5
1965898
1966331
1967428
1968193
1969379
197059.2
1971115
1972258
1973109
197434.8
1975126
1976221
1977235
1978419
197978.4
1980238
1981189
1982283
1983189
1984510
1985261
1986109
198840.8
198983.8
1990317
199183.8
199233.4
199356.4
1994129
1995190
199667.4
1998146
1999850
200045.3
200164.0
200347.9
2004105
200554.4
200696.0
200787.8

About this series

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 existMeasured
Period held1894–2007
Completeness78.1% of the periods in that span are held. Gaps are drawn as breaks and never interpolated.
Known gaps
  • 6 separate periods inside 1894–2007 hold no value. The longest runs from 1895 to 1911 — 17 years with no reading. They are drawn as breaks in the line and are never interpolated across.
ContinuityThe record begins in 1894 and is not continuous from it: 114 years separate the first value from the last, and 78% of the years between them are held. The span is not the record.
Last read from the publisher2026-10-01
RedistributionPermitted by the upstream licences
Commercial reusePermitted by the upstream licences. No Hydrionis access tier can widen this.
MethodologyHow this was produced

How much of the rain came back out

A discharge in cubic metres per second cannot be compared with anything: the larger number may only mean the larger catchment. Divided by the area draining to the gauge it becomes a depth of water over that land, which answers a question a reader already has — of the rain that fell here, how much came back out as river?

Water leaving the catchment above TIMPAS CREEK AT MOUTH NEAR SWINK, CO., as a depth
The year's flow spread over the land draining to this gauge, in millimetres — the same unit rainfall is measured in. 1922–2025.
Shading marks when something was recorded, not what caused the line.
Water leaving the catchment above TIMPAS CREEK AT MOUTH NEAR SWINK, CO., as a depthWater leaving the catchment above TIMPAS CREEK AT MOUTH NEAR SWINK, CO., as a depth: TIMPAS CREEK AT MOUTH NEAR SWINK, CO. in mm, from 1922 to 2025.Hurricane Katrina water and sanitation collapse0255075100mm19221974198219901998200620142022TIMPAS CREEK AT MOUTH NEAR SWINK, CO. 1922: 46.0 mmTIMPAS CREEK AT MOUTH NEAR SWINK, CO. 1923: 110 mmTIMPAS CREEK AT MOUTH NEAR SWINK, CO. 1924: 56.0 mmTIMPAS CREEK AT MOUTH NEAR SWINK, CO. 1969: 54.0 mmTIMPAS CREEK AT MOUTH NEAR SWINK, CO. 1970: 58.0 mmTIMPAS CREEK AT MOUTH NEAR SWINK, CO. 1971: 44.0 mmTIMPAS CREEK AT MOUTH NEAR SWINK, CO. 1972: 33.0 mmTIMPAS CREEK AT MOUTH NEAR SWINK, CO. 1973: 54.0 mmTIMPAS CREEK AT MOUTH NEAR SWINK, CO. 1974: 22.0 mmTIMPAS CREEK AT MOUTH NEAR SWINK, CO. 1975: 18.0 mmTIMPAS CREEK AT MOUTH NEAR SWINK, CO. 1976: 26.0 mmTIMPAS CREEK AT MOUTH NEAR SWINK, CO. 1977: 26.0 mmTIMPAS CREEK AT MOUTH NEAR SWINK, CO. 1978: 25.0 mmTIMPAS CREEK AT MOUTH NEAR SWINK, CO. 1979: 32.0 mmTIMPAS CREEK AT MOUTH NEAR SWINK, CO. 1980: 37.0 mmTIMPAS CREEK AT MOUTH NEAR SWINK, CO. 1981: 25.0 mmTIMPAS CREEK AT MOUTH NEAR SWINK, CO. 1982: 46.0 mmTIMPAS CREEK AT MOUTH NEAR SWINK, CO. 1983: 47.0 mmTIMPAS CREEK AT MOUTH NEAR SWINK, CO. 1984: 57.0 mmTIMPAS CREEK AT MOUTH NEAR SWINK, CO. 1985: 53.0 mmTIMPAS CREEK AT MOUTH NEAR SWINK, CO. 1986: 58.0 mmTIMPAS CREEK AT MOUTH NEAR SWINK, CO. 1987: 65.0 mmTIMPAS CREEK AT MOUTH NEAR SWINK, CO. 1988: 40.0 mmTIMPAS CREEK AT MOUTH NEAR SWINK, CO. 1989: 34.0 mmTIMPAS CREEK AT MOUTH NEAR SWINK, CO. 1990: 38.0 mmTIMPAS CREEK AT MOUTH NEAR SWINK, CO. 1991: 30.0 mmTIMPAS CREEK AT MOUTH NEAR SWINK, CO. 1992: 39.0 mmTIMPAS CREEK AT MOUTH NEAR SWINK, CO. 1993: 41.0 mmTIMPAS CREEK AT MOUTH NEAR SWINK, CO. 1994: 38.0 mmTIMPAS CREEK AT MOUTH NEAR SWINK, CO. 1995: 62.0 mmTIMPAS CREEK AT MOUTH NEAR SWINK, CO. 1996: 53.0 mmTIMPAS CREEK AT MOUTH NEAR SWINK, CO. 1997: 45.0 mmTIMPAS CREEK AT MOUTH NEAR SWINK, CO. 1998: 49.0 mmTIMPAS CREEK AT MOUTH NEAR SWINK, CO. 1999: 55.0 mmTIMPAS CREEK AT MOUTH NEAR SWINK, CO. 2000: 36.0 mmTIMPAS CREEK AT MOUTH NEAR SWINK, CO. 2001: 36.0 mmTIMPAS CREEK AT MOUTH NEAR SWINK, CO. 2002: 11.0 mmTIMPAS CREEK AT MOUTH NEAR SWINK, CO. 2003: 25.0 mmTIMPAS CREEK AT MOUTH NEAR SWINK, CO. 2004: 29.0 mmTIMPAS CREEK AT MOUTH NEAR SWINK, CO. 2005: 32.0 mmTIMPAS CREEK AT MOUTH NEAR SWINK, CO. 2006: 31.0 mmTIMPAS CREEK AT MOUTH NEAR SWINK, CO. 2007: 46.0 mmTIMPAS CREEK AT MOUTH NEAR SWINK, CO. 2008: 43.0 mmTIMPAS CREEK AT MOUTH NEAR SWINK, CO. 2009: 47.0 mmTIMPAS CREEK AT MOUTH NEAR SWINK, CO. 2010: 40.0 mmTIMPAS CREEK AT MOUTH NEAR SWINK, CO. 2011: 30.0 mmTIMPAS CREEK AT MOUTH NEAR SWINK, CO. 2012: 15.0 mmTIMPAS CREEK AT MOUTH NEAR SWINK, CO. 2013: 19.0 mmTIMPAS CREEK AT MOUTH NEAR SWINK, CO. 2014: 42.0 mmTIMPAS CREEK AT MOUTH NEAR SWINK, CO. 2015: 56.0 mmTIMPAS CREEK AT MOUTH NEAR SWINK, CO. 2016: 49.0 mmTIMPAS CREEK AT MOUTH NEAR SWINK, CO. 2017: 68.0 mmTIMPAS CREEK AT MOUTH NEAR SWINK, CO. 2018: 36.0 mmTIMPAS CREEK AT MOUTH NEAR SWINK, CO. 2019: 44.0 mmTIMPAS CREEK AT MOUTH NEAR SWINK, CO. 2020: 35.0 mmTIMPAS CREEK AT MOUTH NEAR SWINK, CO. 2021: 42.0 mmTIMPAS CREEK AT MOUTH NEAR SWINK, CO. 2022: 32.0 mmTIMPAS CREEK AT MOUTH NEAR SWINK, CO. 2023: 39.0 mmTIMPAS CREEK AT MOUTH NEAR SWINK, CO. 2024: 46.0 mmTIMPAS CREEK AT MOUTH NEAR SWINK, CO. 2025: 44.0 mm

Computed by Hydrionis from the published annual mean flow and the catchment area the station's own publisher states. It is not a water balance: the difference between rainfall and runoff is not evaporation alone but also change in groundwater storage, water abstracted and taken elsewhere, and water imported by transfer schemes — which is why a catchment can yield more runoff than the rain that fell on it without anything being measured wrongly. A different area figure rescales every value here by the ratio between them.

What the shaded periods are (1 event)

A shaded period marks when something was recorded, not what caused the shape of the line. Where the two coincide, they coincided.

Documented record — A documented event, compiled from cited sources after it happened. The dates are as good as the record, which for older events can mean the month rather than the day.

EventTypePeriodStandingAuthority
Hurricane Katrina water and sanitation collapseFlood2005-08-29 – 2005-09-30Documented record
Compiled record

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
Underlying data
PeriodTIMPAS CREEK AT MOUTH NEAR SWINK, CO. (mm)
192246.0
1923110
192456.0
196954.0
197058.0
197144.0
197233.0
197354.0
197422.0
197518.0
197626.0
197726.0
197825.0
197932.0
198037.0
198125.0
198246.0
198347.0
198457.0
198553.0
198658.0
198765.0
198840.0
198934.0
199038.0
199130.0
199239.0
199341.0
199438.0
199562.0
199653.0
199745.0
199849.0
199955.0
200036.0
200136.0
200211.0
200325.0
200429.0
200532.0
200631.0
200746.0
200843.0
200947.0
201040.0
201130.0
201215.0
201319.0
201442.0
201556.0
201649.0
201768.0
201836.0
201944.0
202035.0
202142.0
202232.0
202339.0
202446.0
202544.0

About this series

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 existDerived Computed by Hydrionis
Period held1922–2025
Completeness57.7% of the periods in that span are held. Gaps are drawn as breaks and never interpolated.
Known gaps
  • One period inside 1922–2025 holds no value: 1925 to 1968, 44 years with no reading. It is drawn as a break in the line and is never interpolated across.
ContinuityThe record begins in 1922 and is not continuous from it: 104 years separate the first value from the last, and 58% of the years between them are held. The span is not the record.
Inputs last read2026-10-01 · when the records this was computed from were last read from their publishers
Calculation date2026-08-24 · when the calculation method was last versioned, not a reading of any publisher
RedistributionPermitted by the upstream licences
Commercial reusePermitted by the upstream licences. No Hydrionis access tier can widen this.
MethodologyHow this was produced

Every gauge Hydrionis holds within this area

GaugeMeasuresValuesRecord
TIMPAS CREEK AT MOUTH NEAR SWINK, CO.burned area within 50 km, catchment area, annual maximum river flow, mean river flow, mean river flow, water year2181922–2026
ARKANSAS RIVER AT LA JUNTA, COcatchment area, annual maximum river flow921894–2026

How these gauges were attached to this water

Assigned by the publisher to a numbered basin Every gauge here is assigned to this drainage area by its own publisher, which issues the area an official code — 11020005. A drainage area is not a river: it contains the tributaries as well as the main channel, and a gauge in it may be on any of them.

GaugeEvidenceEstablished
TIMPAS CREEK AT MOUTH NEAR SWINK, CO.Stated by the publisher — USGS site service, huc_cd field — https://waterservices.usgs.gov/nwis/site/ ; named from the USGS Watershed Boundary Dataset 8-digit HU (Subbasin) layer — https://hydro.nationalmap.gov/arcgis/rest/services/wbd/MapServer/42026-10-02
ARKANSAS RIVER AT LA JUNTA, COStated by the publisher — USGS site service, huc_cd field — https://waterservices.usgs.gov/nwis/site/ ; named from the USGS Watershed Boundary Dataset 8-digit HU (Subbasin) layer — https://hydro.nationalmap.gov/arcgis/rest/services/wbd/MapServer/42026-10-02

What this record holds

Hydrionis decides which waters get a page, and which of those are offered to search, from what is actually held rather than from how the page reads. Five signals are counted; this record has 3 of them, which makes it a full profile.

SignalHeldCounts
Gauges holding a real record2no
Years spanned133yes, 20 or more
Values held310no
Distinct measurements5yes, 2 or more
Publishers measuring it2yes, 2 or more
Official identifiers1recorded, not counted

Use this data

Use this data

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), Upper Arkansas-Lake Meredith gauge records, accessed 2026-10-05, hydrionis.com/waters/united-states-upper-arkansas-lake-meredith/

Cite Hydrionis where you rely on values Hydrionis computed, on the method that produced them, or on the compilation itself. The underlying measurements remain the publishers’ and their attribution requirements apply to you directly.

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 Upper Arkansas-Lake Meredith gauge records 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 these figures come from

MeasuredHigh confidence2025-06-04

Source: USGS — National Water Information System, USGS site 07121500, annual peak streamflow. Licence: Open.

Method: The instantaneous maximum discharge of each water year as published by USGS, dated to the day it occurred. One value per October-to-September water year; where the publisher lists both a systematic and a historic peak for a year, the larger is the annual maximum. Values the publisher marks as maximum daily averages are not held here, because they are not instantaneous peaks. Values marked as bounded rather than measured are held as censored observations carrying the bound. Cubic feet per second are converted to cubic metres per second and the publisher unit is recorded alongside.

Rating curves are extrapolated at extreme discharges, so the largest values in a peak series carry the largest measurement uncertainty. Data from the U.S. Geological Survey National Water Information System, a work of the United States government and therefore in the public domain.

Retrieved 1 October 2026.

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