The monitoring network within this area

Hydrionis holds 345 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

345

Values held

1914–2026

Record spans

Gauges within the Skokomish 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 NF SKOKOMISH R BL STAIRCASE RPDS NR HOODSPORT, WA

The highest instantaneous discharge the publisher recorded in each year — a flood peak as measured, not a daily average of one. 1925–2024.

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	NF SKOKOMISH R BL STAIRCASE RPDS NR HOODSPORT, WA (m³/s)
1925	125
1926	151
1928	116
1929	115
1931	250
1932	140
1933	309
1934	765
1936	68.2
1937	289
1939	243
1941	193
1943	125
1945	365
1947	184
1949	71.6
1951	199
1953	191
1954	128
1955	385
1956	267
1958	189
1960	251
1961	297
1962	99.1
1963	204
1964	115
1965	98.8
1966	215
1968	230
1969	146
1970	114
1972	128
1974	261
1975	272
1976	78.2
1977	276
1978	114
1979	247
1980	269
1981	174
1982	300
1983	251
1984	99.7
1986	430
1987	208
1988	72.5
1989	294
1990	283
1992	246
1993	85.8
1994	419
1995	237
1997	320
1998	300
1999	289
2000	94.6
2002	365
2003	201
2004	186
2005	174
2006	309
2007	569
2008	156
2009	227
2010	243
2011	221
2012	169
2014	195
2016	259
2017	244
2018	218
2020	209
2021	243
2022	219
2023	179
2024	270

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	1925–2024
Completeness	77.0% of the periods in that span are held. Gaps are drawn as breaks and never interpolated.
Known gaps	23 separate periods inside 1925–2024 hold no value. They are drawn as breaks in the line and are never interpolated across.
Continuity	The record begins in 1925 and is not continuous from it: 100 years separate the first value from the last, and 77% of the years between them are held. The span is not the record.
Last read from the publisher	2026-08-31
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 NF SKOKOMISH R BL STAIRCASE RPDS NR HOODSPORT, WA, as a depth

The year's flow spread over the land draining to this gauge, in millimetres — the same unit rainfall is measured in. 1925–2025.

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	NF SKOKOMISH R BL STAIRCASE RPDS NR HOODSPORT, WA (mm)
1925	2,905
1926	2,681
1927	2,852
1928	2,549
1929	1,542
1930	1,604
1931	2,725
1932	3,136
1933	3,737
1934	3,275
1935	2,813
1936	2,400
1937	3,375
1938	2,609
1939	2,598
1940	3,189
1941	2,969
1942	1,994
1943	2,291
1944	2,048
1945	2,930
1946	3,343
1947	2,791
1948	2,806
1949	3,239
1950	4,187
1951	2,982
1952	2,578
1953	4,233
1954	3,954
1955	3,042
1956	3,955
1957	2,587
1958	3,520
1959	3,198
1960	3,132
1961	3,773
1962	3,027
1963	3,039
1964	2,605
1965	2,586
1966	3,433
1967	3,490
1968	3,680
1969	3,240
1970	2,689
1971	3,670
1972	3,806
1973	2,972
1974	4,206
1975	3,879
1976	2,398
1977	2,720
1978	2,746
1979	3,062
1980	3,229
1981	3,332
1982	3,471
1983	4,106
1984	3,132
1985	2,126
1986	2,993
1987	2,895
1988	2,595
1989	2,725
1990	3,114
1991	2,821
1992	2,606
1993	2,289
1994	2,913
1995	4,383
1996	2,960
1997	4,644
1998	3,639
1999	4,693
2000	2,277
2001	2,454
2002	3,267
2003	3,839
2004	2,704
2005	2,700
2006	3,693
2007	3,485
2008	2,270
2009	2,980
2010	4,215
2011	3,617
2012	3,650
2013	2,609
2014	3,936
2015	2,999
2016	4,478
2017	4,274
2018	3,004
2019	1,855
2020	3,035
2021	3,963
2022	2,505
2023	3,019
2024	2,887
2025	2,885

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	1925–2025
Completeness	100.0% of the periods in that span are held.
Continuity	Continuous: every year from 1925 to 2025 is held.
Last read from the publisher	2026-08-24
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 Skokomish and what each holds
Gauge	Measures	Values	Record
NF SKOKOMISH R BL STAIRCASE RPDS NR HOODSPORT, WA	burned area within 50 km, catchment area, annual maximum river flow, mean river flow	239	1925–2026
NORTH FORK SKOKOMISH RIVER NEAR HOODSPORT, WA	burned area within 50 km, catchment area, annual maximum river flow, mean river flow	106	1914–2026

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 — 17110017. 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
NF SKOKOMISH R BL STAIRCASE RPDS NR HOODSPORT, WA	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	2026-08-26
NORTH FORK SKOKOMISH RIVER NEAR HOODSPORT, WA	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	2026-08-26

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	2	no
Years spanned	113	yes, 20 or more
Values held	345	no
Distinct measurements	4	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-12056500.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), Skokomish gauge records, accessed 2026-09-02, hydrionis.com/waters/united-states-skokomish/

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 Skokomish 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 confidence2024-12-18

Source: USGS — National Water Information System, USGS site 12056500, 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 31 August 2026.