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Little Popo Agie River near Lander

Highest listed crest 6.42 ftFlood stage 5.5 ft73 crests since 1946

The Little Popo Agie River near Lander crested above flood stage 11 times among the 73 crests the National Weather Service lists from 1946 to 2019. The highest, 6.42 ft on June 11, 1965, was moderate flooding, 0.92 feet above flood stage.

The gauge

Highest listed crest
6.42 ft
June 11, 1965; 1,770 cubic feet per second
Flood stage
5.5 ft
Major flooding from 6.5 ft
Crests at major
0
11 above flood stage
Most recent flood crest
June 7, 2017
6.09 ft, moderate flooding
Location
Fremont County
Wyoming

Flood stages

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

Flood categories, Little Popo Agie River near Lander
Action stage5.09May 21, 1984The level at which the NWS or its partners begin to take action
Flood stage (minor)5.59May 7, 2016Minimal or no property damage, but possibly some public threat
Moderate flood stage6.02Jun 7, 2017Some inundation of structures and roads near the stream
Major flood stage6.50—Extensive inundation of structures and roads

Every listed crest

73 crests from 1946 to 2019. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Little Popo Agie River near Lander, 1946 to 2019 234567ft Flood stage 5.5 ftMajor 6.5 ft Jun 6, 1946: 4.21 ft, below flood stage; 344 cubic feet per secondJun 21, 1947: 5.80 ft, minor flooding; 922 cubic feet per secondJun 3, 1948: 4.79 ft, below flood stage; 493 cubic feet per secondJun 19, 1949: 4.95 ft, below flood stage; 518 cubic feet per secondJun 17, 1950: 5.40 ft, action stage; 920 cubic feet per secondMay 29, 1951: 4.62 ft, below flood stage; 591 cubic feet per secondJun 7, 1952: 5.83 ft, minor flooding; 1,160 cubic feet per secondJun 14, 1953: 4.87 ft, below flood stage; 780 cubic feet per secondMay 22, 1954: 4.59 ft, below flood stage; 682 cubic feet per secondJun 14, 1955: 3.23 ft, below flood stage; 234 cubic feet per secondMay 29, 1956: 4.56 ft, below flood stage; 671 cubic feet per secondJun 7, 1957: 5.08 ft, action stage; 870 cubic feet per secondMay 26, 1958: 4.67 ft, below flood stage; 734 cubic feet per secondJun 15, 1959: 3.35 ft, below flood stage; 283 cubic feet per secondMay 13, 1960: 2.92 ft, below flood stage; 170 cubic feet per secondMay 28, 1961: 3.36 ft, below flood stage; 302 cubic feet per secondFeb 10, 1962: 4.95 ft, below flood stage; 794 cubic feet per secondJun 8, 1964: 4.48 ft, below flood stage; 697 cubic feet per secondJun 11, 1965: 6.42 ft, moderate flooding; 1,770 cubic feet per secondMay 31, 1966: 3.38 ft, below flood stage; 250 cubic feet per secondJun 23, 1967: 5.26 ft, action stage; 995 cubic feet per secondJun 6, 1968: 4.96 ft, below flood stage; 830 cubic feet per secondJun 8, 1969: 5.66 ft, minor flooding; 1,200 cubic feet per secondJun 10, 1970: 4.13 ft, below flood stage; 466 cubic feet per secondJun 18, 1971: 5.33 ft, action stage; 960 cubic feet per secondJun 8, 1972: 5.20 ft, action stage; 875 cubic feet per secondJun 15, 1973: 5.24 ft, action stage; 970 cubic feet per secondJun 16, 1974: 4.75 ft, below flood stage; 715 cubic feet per secondJul 5, 1975: 4.58 ft, below flood stage; 622 cubic feet per secondJun 4, 1976: 3.84 ft, below flood stage; 352 cubic feet per secondJun 24, 1977: 5.95 ft, minor flooding; 1,420 cubic feet per secondJun 16, 1978: 5.02 ft, action stage; 665 cubic feet per secondMay 29, 1979: 4.83 ft, below flood stage; 660 cubic feet per secondJun 12, 1980: 5.36 ft, action stage; 946 cubic feet per secondJun 29, 1982: 4.62 ft, below flood stage; 610 cubic feet per secondJun 12, 1983: 5.95 ft, minor flooding; 1,440 cubic feet per secondMay 21, 1984: 5.38 ft, action stage; 1,030 cubic feet per secondMay 26, 1985: 3.76 ft, below flood stage; 268 cubic feet per secondJun 6, 1986: 5.57 ft, minor flooding; 1,240 cubic feet per secondMay 18, 1987: 4.02 ft, below flood stage; 526 cubic feet per secondMay 18, 1988: 3.74 ft, below flood stage; 392 cubic feet per secondJun 17, 1989: 3.59 ft, below flood stage; 317 cubic feet per secondJun 11, 1990: 3.94 ft, below flood stage; 394 cubic feet per secondJun 13, 1991: 4.78 ft, below flood stage; 814 cubic feet per secondMay 27, 1992: 3.17 ft, below flood stage; 184 cubic feet per secondJun 17, 1993: 4.12 ft, below flood stage; 526 cubic feet per secondMay 28, 1994: 3.75 ft, below flood stage; 405 cubic feet per secondJun 16, 1995: 5.59 ft, minor flooding; 1,200 cubic feet per secondJun 11, 1996: 4.42 ft, below flood stage; 638 cubic feet per secondJun 26, 1998: 4.29 ft, below flood stage; 584 cubic feet per secondJun 17, 1999: 4.97 ft, below flood stage; 1,060 cubic feet per secondMay 29, 2000: 3.94 ft, below flood stage; 418 cubic feet per secondMay 16, 2001: 3.85 ft, below flood stage; 380 cubic feet per secondJun 1, 2002: 3.62 ft, below flood stage; 296 cubic feet per secondMay 29, 2003: 3.86 ft, below flood stage; 384 cubic feet per secondJun 27, 2004: 4.53 ft, below flood stage; 732 cubic feet per secondMay 24, 2005: 4.54 ft, below flood stage; 739 cubic feet per secondJun 24, 2005: 4.40 ft, below flood stage; 652 cubic feet per secondMay 23, 2006: 3.86 ft, below flood stage; 385 cubic feet per secondMay 14, 2007: 3.57 ft, below flood stage; 279 cubic feet per secondJun 5, 2008: 4.12 ft, below flood stage; 546 cubic feet per secondJun 2, 2009: 4.14 ft, below flood stage; 558 cubic feet per secondJun 8, 2010: 5.76 ft, minor flooding; 1,733 cubic feet per secondJul 1, 2011: 4.71 ft, below flood stage; 903 cubic feet per secondJun 6, 2012: 3.41 ft, below flood stage; 241 cubic feet per secondMay 18, 2013: 3.27 ft, below flood stage; 196 cubic feet per secondMay 27, 2014: 3.96 ft, below flood stage; 473 cubic feet per secondJun 3, 2015: 4.35 ft, below flood stage; 640 cubic feet per secondMay 7, 2016: 5.73 ft, minor flooding; 1,795 cubic feet per secondJun 10, 2016: 4.71 ft, below flood stage; 882 cubic feet per secondJun 7, 2017: 6.09 ft, moderate flooding; 1,540 cubic feet per secondMay 27, 2018: 3.99 ft, below flood stage; 490 cubic feet per secondJun 8, 2019: 4.76 ft, below flood stage; 860 cubic feet per second Highest, 6.42 ft, Jun 11, 1965 19501960197019801990200020102020

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Little Popo Agie River near Lander 1940s: 1 1950s: 1 1960s: 2 1970s: 1 1980s: 2 1990s: 1 2000s: 0 2010s: 3 3 1940s1950s1960s1970s1980s1990s2000s2010s
  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.
  3. 1 crest measured on an earlier gauge datum is left out: 6.64 ft on Jun 11, 1963.

Highest crests

The 50 highest of 73 listed crests.

Highest listed crests, Little Popo Agie River near Lander
1Jun 11, 19656.42+0.92Moderate1,770
2Jun 7, 20176.09+0.59Moderate1,540
3Jun 24, 19775.95+0.45Minor1,420
4Jun 12, 19835.95+0.45Minor1,440
5Jun 7, 19525.83+0.33Minor1,160
6Jun 21, 19475.80+0.30Minor922
7Jun 8, 20105.76+0.26Minor1,733
8May 7, 20165.73+0.23Minor1,795
9Jun 8, 19695.66+0.16Minor1,200
10Jun 16, 19955.59+0.09Minor1,200
11Jun 6, 19865.57+0.07Minor1,240
12Jun 17, 19505.40−0.10Action920
13May 21, 19845.38−0.12Action1,030
14Jun 12, 19805.36−0.14Action946
15Jun 18, 19715.33−0.17Action960
16Jun 23, 19675.26−0.24Action995
17Jun 15, 19735.24−0.26Action970
18Jun 8, 19725.20−0.30Action875
19Jun 7, 19575.08−0.42Action870
20Jun 16, 19785.02−0.48Action665
21Jun 17, 19994.97−0.53Below flood stage1,060
22Jun 6, 19684.96−0.54Below flood stage830
23Jun 19, 19494.95−0.55Below flood stage518
24Feb 10, 19624.95−0.55Below flood stage794
25Jun 14, 19534.87−0.63Below flood stage780
26May 29, 19794.83−0.67Below flood stage660
27Jun 3, 19484.79−0.71Below flood stage493
28Jun 13, 19914.78−0.72Below flood stage814
29Jun 8, 20194.76−0.74Below flood stage860
30Jun 16, 19744.75−0.75Below flood stage715
31Jul 1, 20114.71−0.79Below flood stage903
32Jun 10, 20164.71−0.79Below flood stage882
33May 26, 19584.67−0.83Below flood stage734
34May 29, 19514.62−0.88Below flood stage591
35Jun 29, 19824.62−0.88Below flood stage610
36May 22, 19544.59−0.91Below flood stage682
37Jul 5, 19754.58−0.92Below flood stage622
38May 29, 19564.56−0.94Below flood stage671
39May 24, 20054.54−0.96Below flood stage739
40Jun 27, 20044.53−0.97Below flood stage732
41Jun 8, 19644.48−1.02Below flood stage697
42Jun 11, 19964.42−1.08Below flood stage638
43Jun 24, 20054.40−1.10Below flood stage652
44Jun 3, 20154.35−1.15Below flood stage640
45Jun 26, 19984.29−1.21Below flood stage584
46Jun 6, 19464.21−1.29Below flood stage344
47Jun 2, 20094.14−1.36Below flood stage558
48Jun 10, 19704.13−1.37Below flood stage466
49Jun 17, 19934.12−1.38Below flood stage526
50Jun 5, 20084.12−1.38Below flood stage546

Other gauges in Fremont County

Flood gauges in Fremont County
Fort Washakie4.55.11 ft, Jun 18, 20170
Riverton8.011.91 ft, Jun 9, 20101
Sinks Canyon6.57.69 ft, Jun 16, 19630
Fort Washakie6.07.19 ft, Jun 17, 19990
Gallinger Ranch5.05.93 ft, Jun 17, 20170
Sweetwater Station7.012.40 ft, Apr 24, 19803
Boysen Reservoir near Shoshoni8.59.31 ft, Jun 14, 19910
Red Creek9.59.97 ft, Jun 9, 19970
Riverton9.012.06 ft, Jun 10, 20171
Below Diversion Dam at Highway 26 Bridge6.07.45 ft, Jun 1, 20200
Crowheart10.011.23 ft, Jun 19, 19992
Dubois5.05.80 ft, Jun 18, 20180
Kinnear9.09.92 ft, Jul 1, 20110

Fremont County: every hazard · River floods across the country · Wyoming

NOAA National Water Prediction Service, gauge LPLW4, 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.