Overview Realtime Historical Map View
Flood Watch
2026-07-22T21:00:00-06:00

* WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...Portions of eastern and southeast Idaho, including the following areas, in eastern Idaho, Big Hole Mountains, Centennial Mountains - Island Park and Teton Valley. In southeast Idaho, Bear Lake Valley, Bear River Range, Blackfoot Mountains, Caribou Range, Franklin/Eastern Oneida Region and Marsh and Arbon Highlands. * WHEN...From Wednesday afternoon through Wednesday evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - An abnormally moist airmass will overspread eastern Idaho later tonight and continue into the day tomorrow. Thunderstorms are expected to be efficient rainfall producers and flash flooding will be possible across the watch area. - http://www.weather.gov/safety/flood

Bear River At Border, Wy Historical Data

Historical Data


Streamflow Range


Date Average 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011
02-13 240.0
02-14 237.0
02-15 236.0
02-16 235.5
02-17 237.0
02-18 181.0
02-19 192.0
02-20 202.0
02-21 204.0
02-22 206.0
02-26 217.0
02-27 200.0
02-28 239.5
03-01 237.5
03-02 235.0
03-03 263.67
03-04 272.0
03-05 257.67
03-06 248.0
03-07 221.0
03-08 215.0
03-09 215.0
03-10 215.0
03-11 213.0
03-12 249.0
03-13 224.75
03-14 221.5
03-15 224.0
03-16 302.0
03-17 279.6
03-18 259.6
03-19 537.71
03-20 595.63
03-21 537.4
03-22 565.35
03-23 616.38
03-24 660.38
03-25 633.33
03-26 640.3
03-27 638.3
03-28 588.82
03-29 583.09
03-30 584.82
03-31 575.73
04-01 546.92
04-02 545.67
04-03 541.75
04-04 529.33
04-05 498.92
04-06 293.08
04-07 478.0
04-08 478.38
04-09 481.0
04-10 480.23
04-11 466.85
04-12 465.08
04-13 442.08
04-14 433.31
04-15 444.54
04-16 438.62
04-17 428.62
04-18 430.31
04-19 430.54
04-20 434.54
04-21 439.36
04-22 451.5
04-23 459.07
04-24 476.48
04-25 475.35
04-26 462.11
04-27 458.62
04-28 456.69
04-29 454.01
04-30 343.96
05-01 565.6
05-02 489.86
05-03 513.14
05-04 620.8
05-05 646.93
05-06 693.27
05-07 733.47
05-08 694.21
05-09 829.53
05-10 870.5
05-11 851.73
05-12 847.67
05-13 848.2
05-14 711.92
05-15 735.69
05-16 904.07
05-17 937.29
05-18 941.33
05-19 942.53
05-20 956.0
05-21 935.87
05-22 935.73
05-23 934.13
05-24 968.47
05-25 970.13
05-26 982.67
05-27 992.87
05-28 1015.4
05-29 998.4
05-30 1002.67
05-31 1003.13
06-01 1003.2
06-02 1004.27
06-03 1019.13
06-04 1024.93
06-05 1082.71
06-06 1035.53
06-07 1096.43
06-08 1073.64
06-09 1057.93
06-10 1037.67
06-11 1017.67
06-12 1012.57
06-13 996.29
06-14 989.43
06-15 973.2
06-16 954.2
06-17 955.73
06-18 960.33
06-19 900.0
06-20 886.0
06-21 861.57
06-22 837.21
06-23 829.14
06-24 821.21
06-25 808.86
06-26 792.14
06-27 782.71
06-28 777.36
06-29 750.5
06-30 722.29
07-01 702.86
07-02 697.14
07-03 701.31
07-04 665.23
07-05 656.6
07-06 652.47
07-07 658.64
07-08 657.43
07-09 658.86
07-10 625.4
07-11 623.11
07-12 596.49
07-13 558.67
07-14 550.13
07-15 531.84
07-16 516.81
07-17 493.83
07-18 488.39
07-19 448.53
07-20 429.88
07-21 413.38
07-22 442.08
07-23 409.35
07-24 397.45
07-25 365.79
07-26 335.81
07-27 303.11
07-28 275.47
07-29 251.56
07-30 237.57
07-31 220.17
08-01 218.82
08-02 201.02
08-03 212.0
08-04 214.65
08-05 205.56
08-06 207.3
08-07 215.53
08-08 216.32
08-09 214.82
08-10 224.4
08-11 206.36
08-12 205.17
08-13 201.93
08-14 197.06
08-15 194.36
08-16 188.97
08-17 184.02
08-18 180.45
08-19 179.43
08-20 175.88
08-21 171.53
08-22 168.25
08-23 175.14
08-24 176.02
08-25 170.46
08-26 164.35
08-27 159.57
08-28 157.66
08-29 157.93
08-30 156.03
08-31 154.35
09-01 151.16
09-02 148.06
09-03 143.41
09-04 136.72
09-05 132.65
09-06 131.84
09-07 127.58
09-08 126.62
09-09 124.43
09-10 123.86
09-11 123.67
09-12 124.14
09-13 122.53
09-14 126.85
09-15 129.19
09-16 139.26
09-17 139.14
09-18 140.7
09-19 142.45
09-20 142.26
09-21 143.44
09-22 146.76
09-23 146.58
09-24 144.68
09-25 144.84
09-26 142.86
09-27 140.81
09-28 143.11
09-29 153.55
09-30 163.16
10-01 180.42
10-02 165.14
10-03 161.36
10-04 157.81
10-05 161.41
10-06 147.79
10-07 153.26
10-08 155.96
10-09 154.54
10-10 158.42
10-11 157.37
10-12 160.54
10-13 159.84
10-14 158.24
10-15 171.02
10-16 166.06
10-17 164.24
10-18 169.52
10-19 159.56
10-20 168.38
10-21 167.08
10-22 168.79
10-23 169.53
10-24 173.45
10-25 170.73
10-26 165.25
10-27 170.91
10-28 177.69
10-29 178.36
10-30 183.0
10-31 181.43
11-01 185.43
11-02 187.77
11-03 185.92
11-04 185.86
11-05 184.57
11-06 188.15
11-07 185.08
11-08 187.08
11-09 187.15
11-10 194.5
11-11 195.0
11-12 190.58
11-13 185.39
11-14 199.0
11-15 199.36
11-16 204.17
11-17 203.17
11-18 203.09
11-19 175.2
11-20 188.3
11-21 192.0
11-22 186.1
11-23 174.11
11-24 181.0
11-25 172.25
11-26 181.67
11-27 177.86
11-28 200.0
11-29 206.63
11-30 199.25
12-01 183.38
12-02 187.63
12-03 223.14
12-04 222.14
12-05 207.43
12-06 185.2
12-07 204.5
12-08 227.67
12-09 233.33
12-10 225.33
12-11 207.0
12-12 216.0
12-13 249.0
12-14 246.0
12-15 231.5
12-16 261.0
12-17 257.0

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index