The monitoring network within this area

Hydrionis holds 317 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.

Gauges

317

Values held

1928–2026

Record spans

Gauges within the Rush-Vermillion huc8 subbasin

2 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 MISSISSIPPI RIVER AT PRESCOTT, WI

The highest instantaneous discharge the publisher recorded in each year — a flood peak as measured, not a daily average of one. 1929–2024.

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	MISSISSIPPI RIVER AT PRESCOTT, WI (m³/s)
1929	1,405
1930	954
1931	634
1932	858
1933	561
1934	425
1935	1,025
1936	1,487
1937	878
1938	1,719
1939	1,841
1940	957
1941	1,914
1942	1,201
1943	2,271
1944	2,398
1945	2,478
1946	1,855
1947	1,787
1948	1,787
1949	1,523
1950	2,860
1951	3,625
1952	4,389
1953	1,917
1954	2,345
1955	1,280
1956	1,775
1957	2,662
1958	804
1959	1,000
1960	1,529
1961	1,311
1962	2,161
1963	1,172
1964	1,631
1965	6,456
1966	2,118
1967	2,486
1968	1,138
1969	5,635
1970	1,555
1971	2,350
1972	2,704
1973	2,217
1974	1,846
1975	3,171
1976	2,061
1977	739
1978	1,852
1979	2,832
1980	1,220
1982	2,455
1983	2,384
1984	2,574
1985	2,078
1993	3,681
1994	2,064
1995	1,841
1996	2,339
1997	4,559
1998	1,994
1999	2,053
2000	906
2001	5,295
2002	1,926
2003	1,676
2004	1,657
2005	1,603
2006	2,061
2007	1,934
2008	1,900
2009	2,144
2010	2,888
2011	3,540
2012	2,750
2013	2,379
2014	3,710
2015	1,303
2016	2,325
2017	2,076
2018	2,917
2019	4,163
2020	3,115
2021	1,651
2022	2,611
2023	4,021
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	1929–2024
Completeness	91.7% of the periods in that span are held. Gaps are drawn as breaks and never interpolated.
Known gaps	2 separate periods inside 1929–2024 hold no value. The longest runs from 1986 to 1992 — 7 years with no reading. They are drawn as breaks in the line and are never interpolated across.
Continuity	The record begins in 1929 and is not continuous from it: 96 years separate the first value from the last, and 92% 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 MISSISSIPPI RIVER AT PRESCOTT, WI, as a depth

The year's flow spread over the land draining to this gauge, in millimetres — the same unit rainfall is measured in. 1929–2023.

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	MISSISSIPPI RIVER AT PRESCOTT, WI (mm)
1929	93.0
1930	64.0
1931	47.0
1932	55.0
1933	47.0
1934	35.0
1935	63.0
1936	76.0
1937	71.0
1938	114
1939	94.0
1940	65.0
1941	138
1942	125
1943	172
1944	193
1945	162
1946	154
1947	141
1948	108
1949	94.0
1950	147
1951	202
1952	209
1953	193
1954	151
1955	102
1956	106
1957	155
1958	82.0
1959	70.0
1960	110
1961	76.0
1962	154
1963	98.0
1964	97.0
1965	240
1966	169
1967	130
1968	151
1969	182
1970	117
1971	170
1972	213
1973	162
1974	135
1975	173
1976	80.0
1977	87.0
1978	154
1979	206
1980	96.0
1981	118
1982	183
1983	213
1984	235
1985	211
1986	309
1987	95.0
1988	65.0
1989	88.0
1990	109
1991	196
1992	170
1993	282
1994	195
1995	215
1996	184
1997	215
1998	157
1999	174
2000	108
2001	240
2002	182
2003	131
2004	141
2005	181
2006	139
2007	135
2008	140
2009	132
2010	238
2011	284
2012	143
2013	160
2014	249
2015	162
2016	250
2017	240
2018	266
2019	378
2020	216
2021	118
2022	165
2023	164

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	1929–2023
Completeness	100.0% of the periods in that span are held.
Continuity	Continuous: every year from 1929 to 2023 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 Rush-Vermillion and what each holds
Gauge	Measures	Values	Record
MISSISSIPPI RIVER AT PRESCOTT, WI	burned area within 50 km, catchment area, annual maximum river flow, mean river flow, mean river flow, water year	316	1928–2026
SOUTH BRANCH VERMILLION RIVER AT EMPIRE, MN	catchment area	1	2026–2026

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 — 07040001. 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
MISSISSIPPI RIVER AT PRESCOTT, WI	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
SOUTH BRANCH VERMILLION RIVER AT EMPIRE, MN	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 3 of them, which makes it a full profile.

Information-gain signals held for this water body
Signal	Held	Counts
Gauges holding a real record	1	no
Years spanned	99	yes, 20 or more
Values held	317	no
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-05344500.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), Rush-Vermillion gauge records, accessed 2026-10-05, hydrionis.com/waters/united-states-rush-vermillion/

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 Rush-Vermillion 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 confidence2024-06-30

Source: USGS — National Water Information System, USGS site 05344500, 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.