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Medicine Bow River near Hanna

Highest listed crest 6.74 ftFlood stage 6.0 ft75 crests since 1940

The Medicine Bow River near Hanna crested above flood stage 4 times among the 75 crests the National Weather Service lists from 1940 to 2026. The highest, 6.74 ft on May 12, 1973, was minor flooding, 0.74 feet above flood stage.

The gauge

Highest listed crest
6.74 ft
May 12, 1973; 6,010 cubic feet per second
Flood stage
6.0 ft
Major flooding from 8.0 ft
Crests at major
0
4 above flood stage
Most recent flood crest
June 16, 2010
6.36 ft, minor flooding
Location
Carbon County
Wyoming

Flood stages

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

Flood categories, Medicine Bow River near Hanna
Action stage5.06Jun 22, 2011The level at which the NWS or its partners begin to take action
Flood stage (minor)6.04Jun 16, 2010Minimal or no property damage, but possibly some public threat
Moderate flood stage7.00—Some inundation of structures and roads near the stream
Major flood stage8.00—Extensive inundation of structures and roads

Every listed crest

75 crests from 1940 to 2026. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Medicine Bow River near Hanna, 1940 to 2026 02468ft Flood stage 6.0 ftMajor 8.0 ft Jul 3, 1940: 2.77 ft, below flood stage; 1,270 cubic feet per secondMay 6, 1941: 3.45 ft, below flood stage; 2,080 cubic feet per secondJun 14, 1942: 3.06 ft, below flood stage; 1,610 cubic feet per secondMar 29, 1943: 5.23 ft, action stage; 4,010 cubic feet per secondApr 13, 1944: 3.50 ft, below flood stage; 2,370 cubic feet per secondJun 7, 1945: 3.21 ft, below flood stage; 1,900 cubic feet per secondJun 21, 1946: 2.87 ft, below flood stage; 1,360 cubic feet per secondJun 24, 1947: 3.48 ft, below flood stage; 2,340 cubic feet per secondMay 31, 1948: 2.71 ft, below flood stage; 1,140 cubic feet per secondJun 12, 1949: 3.33 ft, below flood stage; 2,120 cubic feet per secondMar 27, 1960: 3.31 ft, below flood stage; 1,780 cubic feet per secondJun 3, 1961: 2.61 ft, below flood stage; 1,130 cubic feet per secondJul 22, 1961: 2.46 ft, below flood stage; 784 cubic feet per secondFeb 12, 1962: 5.10 ft, action stage; 5,420 cubic feet per secondMay 23, 1964: 3.26 ft, below flood stage; 1,580 cubic feet per secondJun 20, 1965: 3.79 ft, below flood stage; 2,520 cubic feet per secondSep 1, 1966: 2.27 ft, below flood stage; 757 cubic feet per secondJun 26, 1967: 3.35 ft, below flood stage; 1,890 cubic feet per secondJun 11, 1968: 3.60 ft, below flood stage; 658 cubic feet per secondJun 18, 1969: 2.31 ft, below flood stage; 658 cubic feet per secondJun 14, 1970: 4.32 ft, below flood stage; 2,690 cubic feet per secondJun 26, 1971: 3.80 ft, below flood stage; 2,050 cubic feet per secondJun 7, 1972: 3.30 ft, below flood stage; 1,520 cubic feet per secondMay 12, 1973: 6.74 ft, minor flooding; 6,010 cubic feet per secondAug 2, 1976: 3.39 ft, below flood stage; 1,530 cubic feet per secondMay 18, 1977: 2.51 ft, below flood stage; 807 cubic feet per secondMay 18, 1978: 6.25 ft, minor flooding; 5,220 cubic feet per secondMay 31, 1979: 2.92 ft, below flood stage; 1,070 cubic feet per secondApr 25, 1980: 3.86 ft, below flood stage; 2,120 cubic feet per secondJun 11, 1981: 2.36 ft, below flood stage; 744 cubic feet per secondJul 22, 1982: 4.70 ft, below flood stage; 3,150 cubic feet per secondApr 26, 1983: 6.09 ft, minor flooding; 4,980 cubic feet per secondMay 15, 1984: 4.72 ft, below flood stage; 2,850 cubic feet per secondJun 11, 1985: 2.50 ft, below flood stage; 742 cubic feet per secondJun 12, 1986: 5.22 ft, action stage; 3,080 cubic feet per secondApr 7, 1987: 2.70 ft, below flood stage; 921 cubic feet per secondMay 12, 1988: 3.22 ft, below flood stage; 1,540 cubic feet per secondMar 28, 1989: 1.98 ft, below flood stage; 411 cubic feet per secondMay 28, 1990: 3.01 ft, below flood stage; 1,210 cubic feet per secondJun 4, 1991: 5.01 ft, action stage; 2,450 cubic feet per secondJun 21, 1992: 3.79 ft, below flood stage; 790 cubic feet per secondJun 10, 1993: 4.25 ft, below flood stage; 1,380 cubic feet per secondJun 25, 1994: 3.94 ft, below flood stage; 788 cubic feet per secondJun 21, 1995: 5.00 ft, action stage; 2,300 cubic feet per secondMay 21, 1996: 4.55 ft, below flood stage; 1,550 cubic feet per secondMar 20, 1997: 4.85 ft, below flood stage; 2,080 cubic feet per secondJun 23, 1998: 4.50 ft, below flood stage; 1,520 cubic feet per secondJun 8, 1999: 4.84 ft, below flood stage; 2,020 cubic feet per secondApr 24, 2000: 4.46 ft, below flood stage; 1,570 cubic feet per secondMay 3, 2001: 3.80 ft, below flood stage; 391 cubic feet per secondApr 3, 2002: 3.27 ft, below flood stage; 295 cubic feet per secondJun 4, 2003: 4.60 ft, below flood stage; 1,580 cubic feet per secondMay 27, 2006: 3.72 ft, below flood stage; 661 cubic feet per secondMay 16, 2007: 3.65 ft, below flood stage; 546 cubic feet per secondMay 24, 2008: 4.99 ft, below flood stage; 2,280 cubic feet per secondJun 5, 2009: 4.78 ft, below flood stage; 1,830 cubic feet per secondJun 16, 2010: 6.36 ft, minor flooding; 4,330 cubic feet per secondJun 22, 2011: 5.15 ft, action stage; 2,250 cubic feet per secondMar 14, 2012: 3.66 ft, below flood stage; 536 cubic feet per secondMar 14, 2013: 3.31 ft, below flood stageMay 21, 2013: 3.25 ft, below flood stage; 288 cubic feet per secondJun 4, 2014: 4.94 ft, below flood stage; 2,010 cubic feet per secondJul 30, 2014: 4.66 ft, below flood stage; 1,630 cubic feet per secondJun 18, 2015: 4.49 ft, below flood stage; 1,370 cubic feet per secondJun 15, 2016: 4.59 ft, below flood stage; 1,830 cubic feet per secondJun 9, 2017: 3.98 ft, below flood stage; 890 cubic feet per secondMay 22, 2018: 3.81 ft, below flood stage; 723 cubic feet per secondJun 25, 2019: 4.48 ft, below flood stage; 1,570 cubic feet per secondJun 9, 2020: 4.09 ft, below flood stage; 1,090 cubic feet per secondJun 9, 2021: 3.64 ft, below flood stage; 562 cubic feet per secondJun 15, 2022: 3.54 ft, below flood stage; 515 cubic feet per secondJun 10, 2023: 4.02 ft, below flood stage; 1,050 cubic feet per secondJun 11, 2024: 4.31 ft, below flood stage; 1,350 cubic feet per secondJul 30, 2025: 3.65 ft, below flood stage; 536 cubic feet per secondApr 5, 2026: 2.81 ft, below flood stage; 129 cubic feet per second Highest, 6.74 ft, May 12, 1973 19401960198020002020

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Medicine Bow River near Hanna 1940s: 0 1950s: 0 1960s: 0 1970s: 2 2 1980s: 1 1990s: 0 2000s: 0 2010s: 1 2020s: 0 1940s1950s1960s1970s1980s1990s2000s2010s2020s
  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. 2 crests measured on an earlier gauge datum are left out: 3.58 ft on Jun 12, 1974; 4.13 ft on Apr 18, 1975.

Highest crests

The 50 highest of 75 listed crests.

Highest listed crests, Medicine Bow River near Hanna
1May 12, 19736.74+0.74Minor6,010
2Jun 16, 20106.36+0.36Minor4,330
3May 18, 19786.25+0.25Minor5,220
4Apr 26, 19836.09+0.09Minor4,980
5Mar 29, 19435.23−0.77Action4,010
6Jun 12, 19865.22−0.78Action3,080
7Jun 22, 20115.15−0.85Action2,250
8Feb 12, 19625.10−0.90Action5,420
9Jun 4, 19915.01−0.99Action2,450
10Jun 21, 19955.00−1.00Action2,300
11May 24, 20084.99−1.01Below flood stage2,280
12Jun 4, 20144.94−1.06Below flood stage2,010
13Mar 20, 19974.85−1.15Below flood stage2,080
14Jun 8, 19994.84−1.16Below flood stage2,020
15Jun 5, 20094.78−1.22Below flood stage1,830
16May 15, 19844.72−1.28Below flood stage2,850
17Jul 22, 19824.70−1.30Below flood stage3,150
18Jul 30, 20144.66−1.34Below flood stage1,630
19Jun 4, 20034.60−1.40Below flood stage1,580
20Jun 15, 20164.59−1.41Below flood stage1,830
21May 21, 19964.55−1.45Below flood stage1,550
22Jun 23, 19984.50−1.50Below flood stage1,520
23Jun 18, 20154.49−1.51Below flood stage1,370
24Jun 25, 20194.48−1.52Below flood stage1,570
25Apr 24, 20004.46−1.54Below flood stage1,570
26Jun 14, 19704.32−1.68Below flood stage2,690
27Jun 11, 20244.31−1.69Below flood stage1,350
28Jun 10, 19934.25−1.75Below flood stage1,380
29Jun 9, 20204.09−1.91Below flood stage1,090
30Jun 10, 20234.02−1.98Below flood stage1,050
31Jun 9, 20173.98−2.02Below flood stage890
32Jun 25, 19943.94−2.06Below flood stage788
33Apr 25, 19803.86−2.14Below flood stage2,120
34May 22, 20183.81−2.19Below flood stage723
35Jun 26, 19713.80−2.20Below flood stage2,050
36May 3, 20013.80−2.20Below flood stage391
37Jun 20, 19653.79−2.21Below flood stage2,520
38Jun 21, 19923.79−2.21Below flood stage790
39May 27, 20063.72−2.28Below flood stage661
40Mar 14, 20123.66−2.34Below flood stage536
41May 16, 20073.65−2.35Below flood stage546
42Jul 30, 20253.65−2.35Below flood stage536
43Jun 9, 20213.64−2.36Below flood stage562
44Jun 11, 19683.60−2.40Below flood stage658
45Jun 15, 20223.54−2.46Below flood stage515
46Apr 13, 19443.50−2.50Below flood stage2,370
47Jun 24, 19473.48−2.52Below flood stage2,340
48May 6, 19413.45−2.55Below flood stage2,080
49Aug 2, 19763.39−2.61Below flood stage1,530
50Jun 26, 19673.35−2.65Below flood stage1,890

Gauges on the Medicine Bow River

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

Flood gauges on the Medicine Bow River
Elk MountainWY7.07.08 ft, Jun 30, 20110
Hanna this gaugeWY6.06.74 ft, May 12, 19730

Other gauges in Carbon County

Flood gauges in Carbon County
Encampment6.58.33 ft, Jun 4, 19520
Encampment5.56.22 ft, Jun 7, 20100
Boles Spring8.014.10 ft, May 17, 19780
Dixon9.59.52 ft, May 10, 20160
Elk Mountain7.07.08 ft, Jun 30, 20110
Saratoga8.510.49 ft, Jun 9, 20110
Sinclair9.011.64 ft, Jun 14, 20103
Arlington6.06.11 ft, Jun 2, 20090
Savery4.54.59 ft, May 17, 20110

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

NOAA National Water Prediction Service, gauge HANW4, 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.