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South Fork Payette River at Lowman

Highest listed crest 8.36 ftFlood stage 7.5 ft31 crests since 1956

The South Fork Payette River at Lowman crested above flood stage 5 times among the 31 crests the National Weather Service lists from 1956 to 2025. The highest, 8.36 ft on June 16, 1974, was moderate flooding, 0.86 feet above flood stage.

The gauge

Highest listed crest
8.36 ft
June 16, 1974; 8,980 cubic feet per second
Flood stage
7.5 ft
Major flooding from 9.0 ft
Crests at major
0
5 above flood stage
Most recent flood crest
May 31, 2017
7.56 ft, minor flooding
Location
Boise County
Idaho

Flood stages

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

Flood categories, South Fork Payette River at Lowman
Action stage7.09Apr 26, 2012The level at which the NWS or its partners begin to take action
Flood stage (minor)7.53May 31, 2017Minimal or no property damage, but possibly some public threat
Moderate flood stage8.02Jun 5, 2010Some inundation of structures and roads near the stream
Major flood stage9.00—Extensive inundation of structures and roads

Every listed crest

31 crests from 1956 to 2025. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the South Fork Payette River at Lowman, 1956 to 2025 456789ft Flood stage 7.5 ftMajor 9.0 ft May 24, 1956: 7.45 ft, action stage; 7,050 cubic feet per secondJun 11, 1972: 7.49 ft, action stage; 7,190 cubic feet per secondJun 16, 1974: 8.36 ft, moderate flooding; 8,980 cubic feet per secondJun 20, 1982: 7.27 ft, action stage; 6,440 cubic feet per secondMay 29, 1983: 7.26 ft, action stage; 6,840 cubic feet per secondMay 31, 1984: 6.68 ft, below flood stage; 5,400 cubic feet per secondJun 1, 1986: 7.58 ft, minor flooding; 7,290 cubic feet per secondJun 9, 1996: 6.95 ft, below flood stage; 7,150 cubic feet per secondMay 18, 1997: 7.22 ft, action stage; 6,450 cubic feet per secondMay 29, 1999: 7.05 ft, action stage; 6,090 cubic feet per secondMay 31, 2003: 7.20 ft, action stage; 6,400 cubic feet per secondMay 20, 2006: 7.72 ft, minor flooding; 7,480 cubic feet per secondMay 14, 2007: 5.41 ft, below flood stage; 2,730 cubic feet per secondMay 21, 2008: 6.90 ft, below flood stage; 5,670 cubic feet per secondJun 1, 2009: 6.33 ft, below flood stage; 4,510 cubic feet per secondJun 5, 2010: 8.12 ft, moderate flooding; 8,830 cubic feet per secondJun 24, 2011: 7.06 ft, action stage; 6,040 cubic feet per secondApr 26, 2012: 7.16 ft, action stage; 6,280 cubic feet per secondMay 14, 2013: 5.68 ft, below flood stage; 3,480 cubic feet per secondMay 28, 2014: 6.43 ft, below flood stage; 4,920 cubic feet per secondJun 2, 2015: 4.90 ft, below flood stage; 2,150 cubic feet per secondMay 9, 2016: 5.96 ft, below flood stage; 3,820 cubic feet per secondMay 31, 2017: 7.56 ft, minor flooding; 7,210 cubic feet per secondMay 26, 2018: 6.01 ft, below flood stage; 3,910 cubic feet per secondJun 4, 2019: 6.23 ft, below flood stage; 4,320 cubic feet per secondMay 31, 2020: 5.92 ft, below flood stage; 3,730 cubic feet per secondJun 5, 2021: 5.03 ft, below flood stage; 2,260 cubic feet per secondJun 13, 2022: 6.81 ft, below flood stage; 5,360 cubic feet per secondMay 23, 2023: 6.67 ft, below flood stage; 5,080 cubic feet per secondJun 4, 2024: 6.32 ft, below flood stage; 4,380 cubic feet per secondMay 11, 2025: 6.38 ft, below flood stage; 4,500 cubic feet per second Highest, 8.36 ft, Jun 16, 1974 1960197019801990200020102020

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, South Fork Payette River at Lowman 1950s: 0 1960s: 0 1970s: 1 1980s: 1 1990s: 0 2000s: 1 2010s: 2 2 2020s: 0 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

Highest listed crests, South Fork Payette River at Lowman
1Jun 16, 19748.36+0.86Moderate8,980
2Jun 5, 20108.12+0.62Moderate8,830
3May 20, 20067.72+0.22Minor7,480
4Jun 1, 19867.58+0.08Minor7,290
5May 31, 20177.56+0.06Minor7,210
6Jun 11, 19727.49−0.01Action7,190
7May 24, 19567.45−0.05Action7,050
8Jun 20, 19827.27−0.23Action6,440
9May 29, 19837.26−0.24Action6,840
10May 18, 19977.22−0.28Action6,450
11May 31, 20037.20−0.30Action6,400
12Apr 26, 20127.16−0.34Action6,280
13Jun 24, 20117.06−0.44Action6,040
14May 29, 19997.05−0.45Action6,090
15Jun 9, 19966.95−0.55Below flood stage7,150
16May 21, 20086.90−0.60Below flood stage5,670
17Jun 13, 20226.81−0.69Below flood stage5,360
18May 31, 19846.68−0.82Below flood stage5,400
19May 23, 20236.67−0.83Below flood stage5,080
20May 28, 20146.43−1.07Below flood stage4,920
21May 11, 20256.38−1.12Below flood stage4,500
22Jun 1, 20096.33−1.17Below flood stage4,510
23Jun 4, 20246.32−1.18Below flood stage4,380
24Jun 4, 20196.23−1.27Below flood stage4,320
25May 26, 20186.01−1.49Below flood stage3,910
26May 9, 20165.96−1.54Below flood stage3,820
27May 31, 20205.92−1.58Below flood stage3,730
28May 14, 20135.68−1.82Below flood stage3,480
29May 14, 20075.41−2.09Below flood stage2,730
30Jun 5, 20215.03−2.47Below flood stage2,260
31Jun 2, 20154.90−2.60Below flood stage2,150

Other gauges in Boise County

Flood gauges in Boise County
Crouch11.813.70 ft, Apr 9, 20190
Robie Creek8.89.55 ft, Dec 23, 19550

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

NOAA National Water Prediction Service, gauge PRLI1, 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.