Search
Menu

Explore

Hazards

Analysis

Rankings

Reference

Snake River at Weiser

Highest listed crest 15.55 ftFlood stage 12.0 ft36 crests since 1921

The Snake River at Weiser crested at major flood stage 4 times among the 36 crests the National Weather Service lists from 1921 to 2025. The highest, 15.55 ft on December 20, 1972, was major flooding, 3.55 feet above flood stage.

The gauge

Highest listed crest
15.55 ft
December 20, 1972
Flood stage
12.0 ft
Major flooding from 14.5 ft
Crests at major
4
5th of 78 gauges in Idaho
Most recent flood crest
March 21, 2017
12.53 ft, minor flooding
Location
Washington County
Idaho

Flood stages

The thresholds the National Weather Service uses for this gauge today, and how many listed crests reached each.

Flood categories, Snake River at Weiser
Action stage11.53May 16, 2011The level at which the NWS or its partners begin to take action
Flood stage (minor)12.08Mar 21, 2017Minimal or no property damage, but possibly some public threat
Moderate flood stage13.55Jan 3, 1997Some inundation of structures and roads near the stream
Major flood stage14.54Jan 14, 1979Extensive inundation of structures and roads

Every listed crest

36 crests from 1921 to 2025. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Snake River at Weiser, 1921 to 2025 46810121416ft Flood stage 12.0 ftMajor 14.5 ft May 23, 1921: 13.60 ft, moderate flooding; 83,100 cubic feet per secondJan 29, 1922: 11.63 ft, action stageFeb 17, 1933: 15.00 ft, major floodingMay 3, 1938: 12.25 ft, minor flooding; 67,200 cubic feet per secondApr 21, 1943: 12.76 ft, minor flooding; 69,300 cubic feet per secondApr 29, 1952: 14.67 ft, major flooding; 84,500 cubic feet per secondMay 24, 1957: 12.61 ft, minor flooding; 66,400 cubic feet per secondDec 25, 1964: 12.62 ft, minor flooding; 72,400 cubic feet per secondDec 20, 1972: 15.55 ft, major floodingJan 13, 1974: 14.46 ft, moderate floodingJan 14, 1979: 15.54 ft, major floodingFeb 4, 1982: 12.32 ft, minor flooding; 69,600 cubic feet per secondApr 20, 1984: 13.66 ft, moderate flooding; 80,000 cubic feet per secondMay 12, 1984: 12.50 ft, minor floodingFeb 25, 1986: 13.50 ft, moderate flooding; 78,500 cubic feet per secondMar 10, 1986: 12.50 ft, minor floodingJan 3, 1997: 14.47 ft, moderate floodingApr 24, 2006: 11.95 ft, action stage; 67,200 cubic feet per secondMay 22, 2008: 7.64 ft, below flood stage; 35,500 cubic feet per secondJun 8, 2009: 7.53 ft, below flood stage; 34,400 cubic feet per secondJun 6, 2010: 8.82 ft, below flood stage; 42,800 cubic feet per secondMay 16, 2011: 11.57 ft, action stage; 62,700 cubic feet per secondApr 28, 2012: 8.50 ft, below flood stage; 40,200 cubic feet per secondDec 6, 2012: 5.33 ft, below flood stage; 20,500 cubic feet per secondMar 11, 2014: 7.36 ft, below flood stage; 32,700 cubic feet per secondFeb 10, 2015: 5.96 ft, below flood stage; 24,100 cubic feet per secondMar 14, 2016: 6.37 ft, below flood stage; 26,200 cubic feet per secondMar 21, 2017: 12.53 ft, minor flooding; 70,000 cubic feet per secondMay 29, 2018: 8.09 ft, below flood stage; 37,000 cubic feet per secondApr 10, 2019: 10.52 ft, below flood stage; 54,200 cubic feet per secondMay 27, 2020: 5.88 ft, below flood stage; 23,600 cubic feet per secondMay 26, 2021: 5.52 ft, below flood stage; 20,700 cubic feet per secondJun 14, 2022: 6.45 ft, below flood stage; 27,000 cubic feet per secondMay 3, 2023: 7.44 ft, below flood stage; 33,100 cubic feet per secondApr 7, 2024: 8.30 ft, below flood stage; 38,800 cubic feet per secondFeb 26, 2025: 7.37 ft, below flood stage; 32,700 cubic feet per second Highest, 15.55 ft, Dec 20, 1972 19401960198020002020

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Snake River at Weiser 1920s: 1 1930s: 2 1940s: 1 1950s: 2 1960s: 1 1970s: 3 1980s: 5 5 1990s: 1 2000s: 0 2010s: 1 2020s: 0 1920s1930s1940s1950s1960s1970s1980s1990s2000s2010s2020s
  1. These are the crests the local National Weather Service office lists for the gauge: the highest on record and recent crests. Lesser floods between them may be missing, so counts by decade are a floor.
  2. Categories use today's flood stages. Levees, dams and channel changes since a crest can make old and new stages not directly comparable.

Highest crests

Highest listed crests, Snake River at Weiser
1Dec 20, 197215.55+3.55Major—
2Jan 14, 197915.54+3.54Major—
3Feb 17, 193315.00+3.00Major—
4Apr 29, 195214.67+2.67Major84,500
5Jan 3, 199714.47+2.47Moderate—
6Jan 13, 197414.46+2.46Moderate—
7Apr 20, 198413.66+1.66Moderate80,000
8May 23, 192113.60+1.60Moderate83,100
9Feb 25, 198613.50+1.50Moderate78,500
10Apr 21, 194312.76+0.76Minor69,300
11Dec 25, 196412.62+0.62Minor72,400
12May 24, 195712.61+0.61Minor66,400
13Mar 21, 201712.53+0.53Minor70,000
14May 12, 198412.50+0.50Minor—
15Mar 10, 198612.50+0.50Minor—
16Feb 4, 198212.32+0.32Minor69,600
17May 3, 193812.25+0.25Minor67,200
18Apr 24, 200611.95−0.05Action67,200
19Jan 29, 192211.63−0.37Action—
20May 16, 201111.57−0.43Action62,700
21Apr 10, 201910.52−1.48Below flood stage54,200
22Jun 6, 20108.82−3.18Below flood stage42,800
23Apr 28, 20128.50−3.50Below flood stage40,200
24Apr 7, 20248.30−3.70Below flood stage38,800
25May 29, 20188.09−3.91Below flood stage37,000
26May 22, 20087.64−4.36Below flood stage35,500
27Jun 8, 20097.53−4.47Below flood stage34,400
28May 3, 20237.44−4.56Below flood stage33,100
29Feb 26, 20257.37−4.63Below flood stage32,700
30Mar 11, 20147.36−4.64Below flood stage32,700
31Jun 14, 20226.45−5.55Below flood stage27,000
32Mar 14, 20166.37−5.63Below flood stage26,200
33Feb 10, 20155.96−6.04Below flood stage24,100
34May 27, 20205.88−6.12Below flood stage23,600
35May 26, 20215.52−6.48Below flood stage20,700
36Dec 6, 20125.33−6.67Below flood stage20,500

Other gauges in Washington County

Flood gauges in Washington County
Cambridge12.015.90 ft, Dec 22, 19642
Weiser9.517.20 ft, Jan 2, 19972

Washington County: every hazard · River floods across the country · Idaho

NOAA National Water Prediction Service, gauge WEII1, retrieved October 30, 2026. Stages in feet on the gauge's own datum, not elevation. Crests are as the National Weather Service lists them; preliminary values may be revised.