The Tarkio River near Fairfax crested at major flood stage 8 times among the 151 crests the National Weather Service lists from 1924 to 2026. The highest, 28.90 ft on May 7, 2007, was major flooding, 11.90 feet above flood stage.
The thresholds the National Weather Service uses for this gauge today, and how many listed crests reached each.
Flood categories, Tarkio River near Fairfax
Action stage
12.0
1
May 25, 2004
The level at which the NWS or its partners begin to take action
Flood stage (minor)
17.0
32
Jun 8, 2022
Minimal or no property damage, but possibly some public threat
Moderate flood stage
18.0
110
Jun 11, 2026
Some inundation of structures and roads near the stream
Major flood stage
25.0
8
May 29, 2019
Extensive inundation of structures and roads
03
Every listed crest
151 crests from 1924 to 2026. Filled: at or above flood stage. Hover a crest for its date and stage.
Crests at or above flood stage, by decade
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.
Categories use today's flood stages. Levees, dams and channel changes since a crest can make old and new stages not directly comparable.
04
Highest crests
The 50 highest of 151 listed crests.
Highest listed crests, Tarkio River near Fairfax
1
May 7, 2007
28.90
+11.90
Major
—
2
May 29, 2019
27.20
+10.20
Major
—
3
Jun 6, 2008
26.35
+9.35
Major
12,600
4
May 24, 2019
26.31
+9.31
Major
—
5
Jul 23, 1993
25.60
+8.60
Major
—
6
May 27, 1987
25.48
+8.48
Major
—
7
Jun 12, 2015
25.19
+8.19
Major
10,700
8
Jun 15, 1998
25.00
+8.00
Major
—
9
May 30, 2004
24.85
+7.85
Moderate
—
10
May 19, 2026
24.85
+7.85
Moderate
—
11
Mar 14, 2019
24.82
+7.82
Moderate
—
12
Aug 30, 1982
24.75
+7.75
Moderate
—
13
Sep 9, 1989
24.61
+7.61
Moderate
—
14
Dec 14, 2015
24.29
+7.29
Moderate
—
15
May 29, 2013
24.19
+7.19
Moderate
—
16
Jun 27, 2011
24.17
+7.17
Moderate
—
17
Aug 9, 2015
24.16
+7.16
Moderate
—
18
Jun 16, 2015
24.04
+7.04
Moderate
—
19
Jul 5, 1993
24.00
+7.00
Moderate
—
20
May 9, 1996
24.00
+7.00
Moderate
—
21
May 31, 2016
24.00
+7.00
Moderate
—
22
Jul 17, 2015
23.95
+6.95
Moderate
—
23
Sep 10, 2014
23.82
+6.82
Moderate
—
24
Aug 29, 2014
23.74
+6.74
Moderate
—
25
Jul 15, 2010
23.49
+6.49
Moderate
—
26
Jul 29, 2015
23.42
+6.42
Moderate
—
27
Apr 28, 2016
23.29
+6.29
Moderate
—
28
Oct 11, 1973
23.28
+6.28
Moderate
—
29
Oct 15, 2007
23.26
+6.26
Moderate
—
30
May 23, 1996
23.25
+6.25
Moderate
—
31
Jun 4, 2014
23.24
+6.24
Moderate
9,100
32
Mar 30, 1998
23.10
+6.10
Moderate
—
33
Jul 7, 2011
22.98
+5.98
Moderate
—
34
Jul 10, 1987
22.88
+5.88
Moderate
—
35
May 17, 2015
22.80
+5.80
Moderate
—
36
Jun 15, 2001
22.45
+5.45
Moderate
—
37
Jul 7, 1929
22.33
+5.33
Moderate
—
38
Jul 13, 1993
22.30
+5.30
Moderate
—
39
May 28, 1995
22.30
+5.30
Moderate
—
40
Aug 24, 2007
22.14
+5.14
Moderate
8,232
41
Aug 27, 1987
22.00
+5.00
Moderate
—
42
Nov 17, 1996
22.00
+5.00
Moderate
—
43
Sep 1, 2010
21.94
+4.94
Moderate
—
44
Jun 11, 2026
21.83
+4.83
Moderate
—
45
May 27, 1996
21.60
+4.60
Moderate
—
46
May 13, 2005
21.45
+4.45
Moderate
—
47
Sep 16, 1987
21.32
+4.32
Moderate
—
48
Apr 15, 2012
21.22
+4.22
Moderate
—
49
May 7, 2024
21.16
+4.16
Moderate
—
50
May 24, 2007
21.10
+4.10
Moderate
7,452
05
The worst floods along the Tarkio River
For this gauge's highest crests, the other gauges on the Tarkio River that crested above flood stage within a week.
NOAA National Water Prediction Service, gauge FFXM7, 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.