The monitoring network within this area

Hydrionis holds 1,135 values from 6 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.

Gauges

1,135

Values held

1901–2026

Record spans

Gauges within the Gauley huc8 subbasin

6 monitoring points, positioned as the publisher records them.

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 GAULEY RIVER AT CAMDEN ON GAULEY, WV

The highest instantaneous discharge the publisher recorded in each year — a flood peak as measured, not a daily average of one. 1901–2024.

Show relevant events (1 event)Shading marks when something was recorded, not what caused the line.

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.

Event	Type	Period	Standing	Authority
Hurricane Katrina water and sanitation collapse	Flood	2005-08-29 – 2005-09-30	Documented 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
Period	GAULEY RIVER AT CAMDEN ON GAULEY, WV (m³/s)
1901	892
1909	217
1910	165
1911	425
1912	226
1913	266
1915	266
1929	566
1931	203
1932	1,203
1933	311
1934	311
1935	362
1936	402
1937	377
1939	476
1940	496
1941	150
1942	311
1943	252
1944	283
1946	413
1947	283
1948	405
1949	362
1950	357
1952	160
1953	294
1954	561
1955	518
1956	351
1957	405
1959	248
1960	379
1961	229
1962	365
1963	326
1964	405
1965	181
1966	215
1967	535
1968	178
1969	208
1970	343
1972	459
1974	569
1975	205
1976	158
1978	351
1981	736
1982	306
1984	651
1985	172
1987	210
1989	532
1990	232
1991	354
1992	246
1994	504
1995	195
1996	719
1997	233
1998	379
1999	199
2000	436
2001	0
2002	0
2003	0
2005	0
2007	0
2008	0
2010	0
2012	0
2013	0
2014	0
2015	0
2016	1,065
2021	0
2022	0
2023	0
2024	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 exist	Measured
Period held	1901–2024
Completeness	65.3% of the periods in that span are held. Gaps are drawn as breaks and never interpolated.
Known gaps	21 separate periods inside 1901–2024 hold no value. The longest runs from 1916 to 1928 — 13 years with no reading. They are drawn as breaks in the line and are never interpolated across.
Continuity	The record begins in 1901 and is not continuous from it: 124 years separate the first value from the last, and 65% of the years between them are held. The span is not the 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

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 WILLIAMS RIVER AT DYER, WV, as a depth

The year's flow spread over the land draining to this gauge, in millimetres — the same unit rainfall is measured in. 1930–2025.

Show relevant events (1 event)Shading marks when something was recorded, not what caused the line.

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.

Event	Type	Period	Standing	Authority
Hurricane Katrina water and sanitation collapse	Flood	2005-08-29 – 2005-09-30	Documented 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
Period	WILLIAMS RIVER AT DYER, WV (mm)
1930	366
1931	945
1932	1,080
1933	980
1934	736
1935	1,057
1936	837
1937	896
1938	644
1939	723
1940	937
1941	507
1942	905
1943	741
1944	688
1945	921
1946	643
1947	717
1948	1,084
1949	987
1950	1,123
1951	922
1952	708
1953	647
1954	1,067
1955	760
1956	1,043
1957	887
1958	990
1959	791
1960	760
1961	1,221
1962	811
1963	904
1964	763
1965	646
1966	724
1967	1,011
1968	764
1969	840
1970	982
1971	923
1972	1,520
1973	1,049
1974	1,042
1975	1,051
1976	865
1977	888
1978	867
1979	1,306
1980	919
1981	994
1982	1,037
1983	902
1984	1,059
1985	947
1986	1,007
1987	814
1988	598
1989	1,216
1990	968
1991	807
1992	888
1993	850
1994	1,115
1995	808
1996	1,387
1997	703
1998	893
1999	667
2000	878
2001	667
2002	991
2003	1,330
2004	1,110
2005	876
2006	891
2007	882
2008	849
2009	839
2010	843
2011	1,056
2012	769
2013	1,029
2014	716
2015	1,025
2016	1,003
2017	920
2018	1,439
2019	778
2020	1,122
2021	700
2022	960
2023	750
2024	882
2025	885

About this series

Source	United States Geological Survey — National Water Information System · US Government work — public domain
How the values came to exist	Derived Computed by Hydrionis
Period held	1930–2025
Completeness	100.0% of the periods in that span are held.
Continuity	Continuous: every year from 1930 to 2025 is held.
Inputs last read	2026-10-01 · when the records this was computed from were last read from their publishers
Calculation date	2026-08-24 · when the calculation method was last versioned, not a reading of any publisher
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

Every gauge Hydrionis holds within this area

Gauges within the Gauley and what each holds
Gauge	Measures	Values	Record
WILLIAMS RIVER AT DYER, WV	burned area within 50 km, catchment area, annual maximum river flow, mean river flow, mean river flow, water year	325	1929–2026
GAULEY RIVER ABOVE BELVA, WV	burned area within 50 km, catchment area, annual maximum river flow, mean river flow, mean river flow, water year	257	1918–2026
GAULEY RIVER AT CAMDEN ON GAULEY, WV	burned area within 50 km, catchment area, annual maximum river flow, mean river flow, mean river flow, water year	239	1901–2026
MEADOW RIVER AT NALLEN, WV	burned area within 50 km, catchment area, annual maximum river flow, mean river flow, mean river flow, water year	224	1909–2026
GAULEY RIVER NEAR SUMMERSVILLE, WV	catchment area, annual maximum river flow	46	1909–2026
CHERRY RIVER AT FENWICK, WV	catchment area, annual maximum river flow	44	1929–2026

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 — 05050005. 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.

What each gauge’s link to this water rests on
Gauge	Evidence	Established
WILLIAMS RIVER AT DYER, WV	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/4	2026-10-02
GAULEY RIVER ABOVE BELVA, WV	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/4	2026-10-02
GAULEY RIVER AT CAMDEN ON GAULEY, WV	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/4	2026-10-02
MEADOW RIVER AT NALLEN, WV	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/4	2026-10-02
GAULEY RIVER NEAR SUMMERSVILLE, WV	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/4	2026-10-02
CHERRY RIVER AT FENWICK, WV	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/4	2026-10-02

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 5 of them, which makes it a full profile.

Information-gain signals held for this water body
Signal	Held	Counts
Gauges holding a real record	4	yes, 3 or more
Years spanned	126	yes, 20 or more
Values held	1,135	yes, 1000 or more
Distinct measurements	5	yes, 2 or more
Publishers measuring it	2	yes, 2 or more
Official identifiers	1	recorded, not counted

Use this data

Machine-readable JSON /api/v1/observations/by-subject/gauge-usgs-03186500.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), Gauley gauge records, accessed 2026-10-05, hydrionis.com/waters/united-states-gauley/

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 Gauley 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 confidence2025-02-06

Source: USGS — National Water Information System, USGS site 03186500, 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.