The monitoring network within this area

Hydrionis holds 101 values from 3 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.

3
Gauges
101
Values held
1923–2026
Record spans
Gauges within the Idaho Falls huc8 subbasin
3 monitoring points, positioned as the publisher records them.
Gauges within the Idaho Falls huc8 subbasinDRY BED NR RIRIE ID, SNAKE RIVER AT LORENZO ID, SNAKE RIVER NR MENAN IDDRY BED NR RIRIE IDSNAKE RIVER AT LORENZO IDSNAKE RIVER NR MENAN ID

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 SNAKE RIVER AT LORENZO ID
The highest instantaneous discharge the publisher recorded in each year — a flood peak as measured, not a daily average of one. 1924–2025.
Shading marks when something was recorded, not what caused the line.
Largest measured flow of each year at SNAKE RIVER AT LORENZO IDLargest measured flow of each year at SNAKE RIVER AT LORENZO ID: SNAKE RIVER AT LORENZO ID in m³/s, from 1924 to 2025.Hurricane Katrina water and sanitation collapse2505007501,0001,250m³/s1924198019881998200920152021SNAKE RIVER AT LORENZO ID 1924: 271 m³/sSNAKE RIVER AT LORENZO ID 1925: 558 m³/sSNAKE RIVER AT LORENZO ID 1926: 377 m³/sSNAKE RIVER AT LORENZO ID 1927: 1,218 m³/sSNAKE RIVER AT LORENZO ID 1978: 289 m³/sSNAKE RIVER AT LORENZO ID 1979: 262 m³/sSNAKE RIVER AT LORENZO ID 1980: 459 m³/sSNAKE RIVER AT LORENZO ID 1981: 535 m³/sSNAKE RIVER AT LORENZO ID 1982: 456 m³/sSNAKE RIVER AT LORENZO ID 1984: 527 m³/sSNAKE RIVER AT LORENZO ID 1985: 479 m³/sSNAKE RIVER AT LORENZO ID 1986: 592 m³/sSNAKE RIVER AT LORENZO ID 1988: 289 m³/sSNAKE RIVER AT LORENZO ID 1989: 264 m³/sSNAKE RIVER AT LORENZO ID 1991: 535 m³/sSNAKE RIVER AT LORENZO ID 1992: 242 m³/sSNAKE RIVER AT LORENZO ID 1994: 340 m³/sSNAKE RIVER AT LORENZO ID 1997: 1,085 m³/sSNAKE RIVER AT LORENZO ID 1998: 413 m³/sSNAKE RIVER AT LORENZO ID 1999: 442 m³/sSNAKE RIVER AT LORENZO ID 2005: 300 m³/sSNAKE RIVER AT LORENZO ID 2006: 447 m³/sSNAKE RIVER AT LORENZO ID 2007: 351 m³/sSNAKE RIVER AT LORENZO ID 2008: 416 m³/sSNAKE RIVER AT LORENZO ID 2009: 637 m³/sSNAKE RIVER AT LORENZO ID 2010: 459 m³/sSNAKE RIVER AT LORENZO ID 2011: 569 m³/sSNAKE RIVER AT LORENZO ID 2012: 292 m³/sSNAKE RIVER AT LORENZO ID 2013: 385 m³/sSNAKE RIVER AT LORENZO ID 2014: 430 m³/sSNAKE RIVER AT LORENZO ID 2015: 360 m³/sSNAKE RIVER AT LORENZO ID 2016: 337 m³/sSNAKE RIVER AT LORENZO ID 2017: 617 m³/sSNAKE RIVER AT LORENZO ID 2018: 518 m³/sSNAKE RIVER AT LORENZO ID 2019: 544 m³/sSNAKE RIVER AT LORENZO ID 2020: 428 m³/sSNAKE RIVER AT LORENZO ID 2021: 348 m³/sSNAKE RIVER AT LORENZO ID 2022: 242 m³/sSNAKE RIVER AT LORENZO ID 2023: 269 m³/sSNAKE RIVER AT LORENZO ID 2024: 422 m³/sSNAKE RIVER AT LORENZO ID 2025: 252 m³/s

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
PeriodSNAKE RIVER AT LORENZO ID (m³/s)
1924271
1925558
1926377
19271,218
1978289
1979262
1980459
1981535
1982456
1984527
1985479
1986592
1988289
1989264
1991535
1992242
1994340
19971,085
1998413
1999442
2005300
2006447
2007351
2008416
2009637
2010459
2011569
2012292
2013385
2014430
2015360
2016337
2017617
2018518
2019544
2020428
2021348
2022242
2023269
2024422
2025252

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 held1924–2025
Completeness40.2% of the periods in that span are held. Gaps are drawn as breaks and never interpolated.
Known gaps
  • 7 separate periods inside 1924–2025 hold no value. The longest runs from 1928 to 1977 — 50 years with no reading. They are drawn as breaks in the line and are never interpolated across.
ContinuityThe record begins in 1924 and is not continuous from it: 102 years separate the first value from the last, and 40% 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

Every gauge Hydrionis holds within this area

Gauges within the Idaho Falls and what each holds
GaugeMeasuresValuesRecord
SNAKE RIVER AT LORENZO IDcatchment area, annual maximum river flow421924–2026
DRY BED NR RIRIE IDannual maximum river flow371986–2025
SNAKE RIVER NR MENAN IDannual maximum river flow221923–2025

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 — 17040201. 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
GaugeEvidenceEstablished
SNAKE RIVER AT LORENZO IDStated 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
DRY BED NR RIRIE IDStated 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
SNAKE RIVER NR MENAN IDStated 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 2 of them, which makes it a profile, not indexed.

Information-gain signals held for this water body
SignalHeldCounts
Gauges holding a real record0no
Years spanned104yes, 20 or more
Values held101no
Distinct measurements2yes, 2 or more
Publishers measuring it1no
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), Idaho Falls gauge records, accessed 2026-10-05, hydrionis.com/waters/united-states-idaho-falls/

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 Idaho Falls 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 confidence2025-05-15

Source: USGS — National Water Information System, USGS site 13038500, 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.