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Blacks Fork near Little America

Highest listed crest 12.53 ftFlood stage 10.5 ft64 crests since 1962

The Blacks Fork near Little America crested above flood stage 1 time among the 64 crests the National Weather Service lists from 1962 to 2025. The highest, 12.53 ft on March 12, 2017, was moderate flooding, 2.03 feet above flood stage.

The gauge

Highest listed crest
12.53 ft
March 12, 2017; 13,900 cubic feet per second
Flood stage
10.5 ft
No major stage set
Crests at major
0
1 above flood stage
Most recent flood crest
March 12, 2017
12.53 ft, moderate flooding
Location
Sweetwater County
Near Green River (11.7 mi)

Flood stages

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

Flood categories, Blacks Fork near Little America
Action stage9.56May 31, 2011The level at which the NWS or its partners begin to take action
Flood stage (minor)10.50—Minimal or no property damage, but possibly some public threat
Moderate flood stage11.51Mar 12, 2017Some inundation of structures and roads near the stream

Every listed crest

64 crests from 1962 to 2025. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Blacks Fork near Little America, 1962 to 2025 2468101214ft Flood stage 10.5 ft Jun 16, 1962: 5.52 ft, below flood stage; 1,490 cubic feet per secondJun 19, 1963: 5.68 ft, below flood stage; 1,810 cubic feet per secondJun 9, 1964: 6.96 ft, below flood stage; 2,810 cubic feet per secondAug 4, 1966: 6.14 ft, below flood stage; 1,750 cubic feet per secondJun 24, 1967: 7.87 ft, below flood stage; 3,700 cubic feet per secondJun 8, 1968: 8.43 ft, below flood stage; 4,380 cubic feet per secondMay 11, 1969: 5.93 ft, below flood stage; 1,530 cubic feet per secondJun 13, 1970: 7.35 ft, below flood stage; 3,090 cubic feet per secondMay 18, 1971: 7.65 ft, below flood stage; 3,460 cubic feet per secondJun 6, 1972: 7.83 ft, below flood stage; 3,710 cubic feet per secondJul 20, 1973: 8.54 ft, below flood stage; 4,740 cubic feet per secondMay 11, 1974: 7.35 ft, below flood stage; 3,100 cubic feet per secondMay 24, 1976: 6.12 ft, below flood stage; 1,810 cubic feet per secondApr 12, 1977: 3.84 ft, below flood stage; 173 cubic feet per secondJun 5, 1978: 7.09 ft, below flood stage; 2,700 cubic feet per secondMay 8, 1979: 4.99 ft, below flood stage; 761 cubic feet per secondMay 8, 1980: 7.48 ft, below flood stage; 3,090 cubic feet per secondJun 11, 1981: 5.89 ft, below flood stage; 1,360 cubic feet per secondJul 28, 1982: 8.29 ft, below flood stage; 4,360 cubic feet per secondMay 26, 1984: 9.95 ft, action stage; 5,370 cubic feet per secondApr 5, 1985: 6.85 ft, below flood stage; 1,850 cubic feet per secondJun 8, 1986: 10.16 ft, action stage; 5,770 cubic feet per secondJun 12, 1987: 6.10 ft, below flood stage; 1,150 cubic feet per secondMay 19, 1988: 5.85 ft, below flood stage; 1,090 cubic feet per secondMar 24, 1989: 4.99 ft, below flood stage; 439 cubic feet per secondAug 18, 1990: 5.72 ft, below flood stage; 876 cubic feet per secondJun 3, 1991: 9.40 ft, below flood stage; 5,080 cubic feet per secondMar 2, 1992: 9.43 ft, below flood stage; 4,500 cubic feet per secondMay 23, 1993: 7.32 ft, below flood stage; 2,310 cubic feet per secondMay 18, 1994: 4.87 ft, below flood stage; 328 cubic feet per secondJun 10, 1995: 7.63 ft, below flood stage; 2,260 cubic feet per secondJun 21, 1995: 7.78 ft, below flood stage; 3,650 cubic feet per secondJun 12, 1996: 7.22 ft, below flood stage; 1,790 cubic feet per secondJun 11, 1997: 8.53 ft, below flood stage; 3,360 cubic feet per secondJun 19, 1998: 10.40 ft, action stage; 5,120 cubic feet per secondMay 30, 1999: 8.55 ft, below flood stage; 3,130 cubic feet per secondApr 16, 2000: 5.94 ft, below flood stage; 435 cubic feet per secondMar 23, 2001: 8.50 ft, below flood stage; 2,910 cubic feet per secondMar 30, 2002: 6.35 ft, below flood stage; 450 cubic feet per secondJun 25, 2003: 7.22 ft, below flood stage; 1,760 cubic feet per secondMar 15, 2004: 7.61 ft, below flood stage; 900 cubic feet per secondMar 12, 2005: 9.44 ft, below flood stage; 4,280 cubic feet per secondMay 18, 2005: 7.09 ft, below flood stage; 1,699 cubic feet per secondApr 26, 2006: 5.49 ft, below flood stage; 705 cubic feet per secondMar 11, 2007: 10.23 ft, action stage; 5,500 cubic feet per secondMar 28, 2008: 8.95 ft, below flood stage; 3,820 cubic feet per secondJun 19, 2009: 8.11 ft, below flood stage; 2,750 cubic feet per secondJun 14, 2010: 9.58 ft, action stage; 4,280 cubic feet per secondMay 31, 2011: 10.38 ft, action stage; 4,740 cubic feet per secondMar 16, 2012: 8.91 ft, below flood stage; 2,900 cubic feet per secondSep 13, 2013: 8.19 ft, below flood stage; 2,230 cubic feet per secondSep 29, 2014: 9.07 ft, below flood stage; 3,050 cubic feet per secondMay 26, 2015: 8.36 ft, below flood stage; 2,380 cubic feet per secondMar 5, 2016: 8.90 ft, below flood stage; 2,870 cubic feet per secondJun 14, 2016: 8.49 ft, below flood stage; 2,500 cubic feet per secondMar 12, 2017: 12.53 ft, moderate flooding; 13,900 cubic feet per secondMay 13, 2018: 5.82 ft, below flood stage; 850 cubic feet per secondApr 5, 2019: 8.86 ft, below flood stage; 2,760 cubic feet per secondJun 9, 2020: 6.97 ft, below flood stage; 1,440 cubic feet per secondApr 7, 2021: 4.52 ft, below flood stage; 224 cubic feet per secondJun 1, 2022: 5.18 ft, below flood stage; 481 cubic feet per secondMay 22, 2023: 8.85 ft, below flood stage; 2,830 cubic feet per secondJun 11, 2024: 7.23 ft, below flood stage; 1,680 cubic feet per secondMay 8, 2025: 4.95 ft, below flood stage; 534 cubic feet per second Highest, 12.53 ft, Mar 12, 2017 197019801990200020102020

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Blacks Fork near Little America 1960s: 0 1970s: 0 1980s: 0 1990s: 0 2000s: 0 2010s: 1 1 2020s: 0 1960s1970s1980s1990s2000s2010s2020s
  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 64 listed crests.

Highest listed crests, Blacks Fork near Little America
1Mar 12, 201712.53+2.03Moderate13,900
2Jun 19, 199810.40−0.10Action5,120
3May 31, 201110.38−0.12Action4,740
4Mar 11, 200710.23−0.27Action5,500
5Jun 8, 198610.16−0.34Action5,770
6May 26, 19849.95−0.55Action5,370
7Jun 14, 20109.58−0.92Action4,280
8Mar 12, 20059.44−1.06Below flood stage4,280
9Mar 2, 19929.43−1.07Below flood stage4,500
10Jun 3, 19919.40−1.10Below flood stage5,080
11Sep 29, 20149.07−1.43Below flood stage3,050
12Mar 28, 20088.95−1.55Below flood stage3,820
13Mar 16, 20128.91−1.59Below flood stage2,900
14Mar 5, 20168.90−1.60Below flood stage2,870
15Apr 5, 20198.86−1.64Below flood stage2,760
16May 22, 20238.85−1.65Below flood stage2,830
17May 30, 19998.55−1.95Below flood stage3,130
18Jul 20, 19738.54−1.96Below flood stage4,740
19Jun 11, 19978.53−1.97Below flood stage3,360
20Mar 23, 20018.50−2.00Below flood stage2,910
21Jun 14, 20168.49−2.01Below flood stage2,500
22Jun 8, 19688.43−2.07Below flood stage4,380
23May 26, 20158.36−2.14Below flood stage2,380
24Jul 28, 19828.29−2.21Below flood stage4,360
25Sep 13, 20138.19−2.31Below flood stage2,230
26Jun 19, 20098.11−2.39Below flood stage2,750
27Jun 24, 19677.87−2.63Below flood stage3,700
28Jun 6, 19727.83−2.67Below flood stage3,710
29Jun 21, 19957.78−2.72Below flood stage3,650
30May 18, 19717.65−2.85Below flood stage3,460
31Jun 10, 19957.63−2.87Below flood stage2,260
32Mar 15, 20047.61−2.89Below flood stage900
33May 8, 19807.48−3.02Below flood stage3,090
34Jun 13, 19707.35−3.15Below flood stage3,090
35May 11, 19747.35−3.15Below flood stage3,100
36May 23, 19937.32−3.18Below flood stage2,310
37Jun 11, 20247.23−3.27Below flood stage1,680
38Jun 12, 19967.22−3.28Below flood stage1,790
39Jun 25, 20037.22−3.28Below flood stage1,760
40Jun 5, 19787.09−3.41Below flood stage2,700
41May 18, 20057.09−3.41Below flood stage1,699
42Jun 9, 20206.97−3.53Below flood stage1,440
43Jun 9, 19646.96−3.54Below flood stage2,810
44Apr 5, 19856.85−3.65Below flood stage1,850
45Mar 30, 20026.35−4.15Below flood stage450
46Aug 4, 19666.14−4.36Below flood stage1,750
47May 24, 19766.12−4.38Below flood stage1,810
48Jun 12, 19876.10−4.40Below flood stage1,150
49Apr 16, 20005.94−4.56Below flood stage435
50May 11, 19695.93−4.57Below flood stage1,530

Gauges on the Blacks Fork

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

Flood gauges on the Blacks Fork
RobertsonUT5.05.34 ft, Jun 6, 20100
Little America this gaugeWY10.512.53 ft, Mar 12, 20170

Other gauges in Sweetwater County

Flood gauges in Sweetwater County
Green River7.08.53 ft, Sep 7, 19650
Fontenelle Dam16.518.74 ft, Sep 5, 19651
Manila11.012.56 ft, Aug 18, 20240

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

NOAA National Water Prediction Service, gauge LTAW4, 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.