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Yukon River at Ruby

Highest listed crest 43.40 ftFlood stage 40.0 ft62 crests since 1957

The Yukon River at Ruby crested above flood stage 2 times among the 62 crests the National Weather Service lists from 1957 to 2026. The highest, 43.40 ft on May 14, 2026, was minor flooding, 3.40 feet above flood stage. 1 other gauge on the Yukon River crested above flood stage within a week of it.

The gauge

Highest listed crest
43.40 ft
May 14, 2026
Flood stage
40.0 ft
No major stage set
Crests at major
0
2 above flood stage
Most recent flood crest
May 14, 2026
43.40 ft, minor flooding
Identifiers
NWS RBYA2
USGS 15564800; out of service

Flood stages

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

Flood categories, Yukon River at Ruby
Action stage29.023May 22, 2023The level at which the NWS or its partners begin to take action
Flood stage (minor)40.02May 14, 2026Minimal or no property damage, but possibly some public threat

Every listed crest

62 crests from 1957 to 2026. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Yukon River at Ruby, 1957 to 2026 1020304050ft Flood stage 40.0 ft Jun 3, 1957: 32.40 ft, action stage; 753,000 cubic feet per secondJun 3, 1958: 25.00 ft, below flood stage; 468,000 cubic feet per secondMay 31, 1959: 27.13 ft, below flood stage; 537,000 cubic feet per secondJun 1, 1960: 23.90 ft, below flood stageMay 30, 1961: 27.60 ft, below flood stage; 554,000 cubic feet per secondJun 9, 1962: 34.44 ft, action stage; 554,000 cubic feet per secondMay 20, 1963: 37.91 ft, action stageMay 27, 1963: 26.92 ft, below flood stage; 587,000 cubic feet per secondJun 20, 1964: 35.40 ft, action stage; 970,000 cubic feet per secondJun 5, 1965: 29.60 ft, action stage; 704,000 cubic feet per secondMay 21, 1966: 36.10 ft, action stageJun 13, 1967: 29.84 ft, action stage; 712,000 cubic feet per secondMay 17, 1968: 35.45 ft, action stageJun 10, 1968: 30.30 ft, action stage; 732,000 cubic feet per secondAug 13, 1969: 19.70 ft, below flood stage; 352,000 cubic feet per secondJun 2, 1970: 21.26 ft, below flood stage; 377,000 cubic feet per secondMay 20, 1971: 38.50 ft, action stageMay 20, 1972: 34.20 ft, action stageJun 11, 1972: 30.47 ft, action stage; 731,000 cubic feet per secondMay 28, 1973: 29.50 ft, action stage; 732,000 cubic feet per secondMay 16, 1974: 25.40 ft, below flood stage; 516,000 cubic feet per secondJun 8, 1975: 27.09 ft, below flood stage; 604,000 cubic feet per secondJun 9, 1976: 22.77 ft, below flood stage; 418,000 cubic feet per secondJun 10, 1977: 29.06 ft, action stage; 668,000 cubic feet per secondJul 2, 1978: 21.26 ft, below flood stage; 370,000 cubic feet per secondMay 20, 1982: 26.40 ft, below flood stageMay 23, 1985: 25.71 ft, below flood stageJun 14, 1986: 25.71 ft, below flood stageMay 22, 1988: 25.40 ft, below flood stageMay 17, 1989: 31.54 ft, action stageMay 8, 1990: 31.05 ft, action stageMay 9, 1991: 37.61 ft, action stageJun 13, 1992: 36.83 ft, action stageMay 7, 1993: 29.74 ft, action stageMay 9, 1994: 32.61 ft, action stageMay 8, 1995: 27.96 ft, below flood stageMay 15, 1996: 25.48 ft, below flood stageJun 25, 1997: 26.13 ft, below flood stageJun 3, 1998: 22.26 ft, below flood stageJun 26, 1999: 22.45 ft, below flood stageJun 25, 2000: 28.21 ft, below flood stageJun 16, 2001: 28.82 ft, below flood stageJun 6, 2004: 25.84 ft, below flood stageMay 22, 2005: 29.54 ft, action stageMay 28, 2006: 26.85 ft, below flood stageJun 15, 2007: 21.95 ft, below flood stageAug 5, 2008: 22.96 ft, below flood stageMay 14, 2009: 31.47 ft, action stageMay 12, 2010: 41.40 ft, minor floodingJun 2, 2011: 28.58 ft, below flood stageJun 4, 2012: 26.07 ft, below flood stageJun 8, 2015: 26.37 ft, below flood stageAug 25, 2016: 25.98 ft, below flood stageMay 24, 2017: 24.26 ft, below flood stageMay 31, 2018: 26.49 ft, below flood stageJul 1, 2020: 28.41 ft, below flood stageMay 17, 2021: 23.27 ft, below flood stageJun 8, 2022: 28.29 ft, below flood stageMay 22, 2023: 38.73 ft, action stageMay 13, 2024: 27.16 ft, below flood stageJun 5, 2025: 28.10 ft, below flood stageMay 14, 2026: 43.40 ft, minor flooding Highest, 43.40 ft, May 14, 2026 1960197019801990200020102020

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Yukon River at Ruby 1950s: 0 1960s: 0 1970s: 0 1980s: 0 1990s: 0 2000s: 0 2010s: 1 1 2020s: 1 1950s1960s1970s1980s1990s2000s2010s2020s
  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

The 50 highest of 62 listed crests.

Highest listed crests, Yukon River at Ruby
1May 14, 202643.40+3.40Minor—
2May 12, 201041.40+1.40Minor—
3May 22, 202338.73−1.27Action—
4May 20, 197138.50−1.50Action—
5May 20, 196337.91−2.09Action—
6May 9, 199137.61−2.39Action—
7Jun 13, 199236.83−3.17Action—
8May 21, 196636.10−3.90Action—
9May 17, 196835.45−4.55Action—
10Jun 20, 196435.40−4.60Action970,000
11Jun 9, 196234.44−5.56Action554,000
12May 20, 197234.20−5.80Action—
13May 9, 199432.61−7.39Action—
14Jun 3, 195732.40−7.60Action753,000
15May 17, 198931.54−8.46Action—
16May 14, 200931.47−8.53Action—
17May 8, 199031.05−8.95Action—
18Jun 11, 197230.47−9.53Action731,000
19Jun 10, 196830.30−9.70Action732,000
20Jun 13, 196729.84−10.16Action712,000
21May 7, 199329.74−10.26Action—
22Jun 5, 196529.60−10.40Action704,000
23May 22, 200529.54−10.46Action—
24May 28, 197329.50−10.50Action732,000
25Jun 10, 197729.06−10.94Action668,000
26Jun 16, 200128.82−11.18Below flood stage—
27Jun 2, 201128.58−11.42Below flood stage—
28Jul 1, 202028.41−11.59Below flood stage—
29Jun 8, 202228.29−11.71Below flood stage—
30Jun 25, 200028.21−11.79Below flood stage—
31Jun 5, 202528.10−11.90Below flood stage—
32May 8, 199527.96−12.04Below flood stage—
33May 30, 196127.60−12.40Below flood stage554,000
34May 13, 202427.16−12.84Below flood stage—
35May 31, 195927.13−12.87Below flood stage537,000
36Jun 8, 197527.09−12.91Below flood stage604,000
37May 27, 196326.92−13.08Below flood stage587,000
38May 28, 200626.85−13.15Below flood stage—
39May 31, 201826.49−13.51Below flood stage—
40May 20, 198226.40−13.60Below flood stage—
41Jun 8, 201526.37−13.63Below flood stage—
42Jun 25, 199726.13−13.87Below flood stage—
43Jun 4, 201226.07−13.93Below flood stage—
44Aug 25, 201625.98−14.02Below flood stage—
45Jun 6, 200425.84−14.16Below flood stage—
46May 23, 198525.71−14.29Below flood stage—
47Jun 14, 198625.71−14.29Below flood stage—
48May 15, 199625.48−14.52Below flood stage—
49May 16, 197425.40−14.60Below flood stage516,000
50May 22, 198825.40−14.60Below flood stage—

The worst floods along the Yukon River

For this gauge's highest crests, the other gauges on the Yukon River that crested above flood stage within a week.

May 14, 2026: 43.40 ft here, minor flooding

  • GalenaAK · May 15, 2026 · 124.80 ft · Minor

Gauges on the Yukon River

In USGS station-number order, which runs downstream within a river basin.

Flood gauges on the Yukon River
Ruby this gaugeAK40.043.40 ft, May 14, 20260
GalenaAK124.0131.00 ft, May 23, 19712

Other gauges in Yukon-Koyukuk Census Area

Flood gauges in Yukon-Koyukuk Census Area
Allakaket26.035.60 ft, Aug 30, 19941
Hughes64.070.80 ft, Aug 22, 19941
McGrath21.026.50 ft, May 18, 19720
Wiseman11.513.49 ft, Jun 16, 20260
Coldfoot18.720.86 ft, Aug 26, 20250
Manley Hot Springs15.019.55 ft, May 8, 20220
Nenana12.518.50 ft, Aug 18, 19671
Galena124.0131.00 ft, May 23, 19712
Stevens Village61.063.00 ft, Jun 15, 19640

Yukon-Koyukuk Census Area: every hazard · River floods across the country · Alaska

NOAA National Water Prediction Service, gauge RBYA2, 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.