Overview Realtime Historical Map View
Red Flag Warning
2026-09-04T21:00:00-06:00

* IMPACTS: Low Humidities...Unseasonably Warm Temperatures...and Strong Gusty Winds could cause erratic fire behavior. * AFFECTED AREA: In Central WY Fire Zones...280...283...285...289. In North Central WY Fire Zones...275...276...281...282...287. In Northwest WY Fire Zone....286. * COUNTIES AFFECTED: In Central WY...Fremont...Natrona. In North Central WY...Big Horn...Hot Springs...Johnson...Park Washakie. In Southwest WY...Sweetwater. * WIND: Southwest 15 to 25 mph with gusts up to 35 mph. * HUMIDITY: As low as 10 to 15 percent. * TEMPERATURES: Highs in the mid 80s to lower 90s.

Nf Powder River Below Pass Creek, Nr Mayoworth, Wy Historical Data

Historical Data


Streamflow Range


Date Average 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011
01-01 29.8
01-02 55.33
01-03 20.33
01-04 21.95
01-05 22.37
01-06 21.65
01-07 21.27
01-08 21.4
01-09 21.5
01-10 21.0
01-11 21.9
01-12 22.02
01-13 21.65
01-14 21.4
01-15 21.25
01-16 23.16
01-17 21.5
01-18 21.52
01-19 21.27
01-20 21.08
01-21 21.15
01-22 20.98
01-23 20.67
01-24 20.83
01-25 20.73
01-26 20.17
01-27 20.5
01-28 20.8
01-29 24.95
01-30 20.0
01-31 19.88
02-01 19.43
02-02 19.63
02-03 20.13
02-04 19.8
02-05 24.95
02-06 19.65
02-07 20.0
02-08 500.5
02-09 20.12
02-10 21.68
02-11 25.07
02-12 19.96
02-13 21.27
02-14 20.93
02-15 21.05
02-16 20.09
02-17 19.73
02-18 21.48
02-19 28.62
02-20 21.58
02-21 19.4
02-22 20.88
02-23 19.88
02-24 20.0
02-25 20.88
02-26 23.56
02-27 20.35
02-28 20.08
02-29 20.7
03-01 19.94
03-02 19.76
03-03 19.04
03-04 19.7
03-05 20.03
03-06 20.14
03-07 20.12
03-08 19.95
03-09 20.12
03-10 19.94
03-11 19.74
03-12 19.9
03-13 19.71
03-14 20.09
03-15 19.96
03-16 19.82
03-17 19.9
03-18 19.96
03-19 20.04
03-20 21.3
03-21 20.48
03-22 20.7
03-23 20.92
03-24 21.2
03-25 20.79
03-26 20.91
03-27 20.69
03-28 20.52
03-29 20.33
03-30 20.57
03-31 21.35
04-01 25.59
04-02 25.39
04-03 24.34
04-04 21.9
04-05 21.57
04-06 22.07
04-07 21.78
04-08 21.73
04-09 21.6
04-10 22.38
04-11 21.84
04-12 25.59
04-13 24.76
04-14 23.82
04-15 23.17
04-16 23.34
04-17 23.71
04-18 22.85
04-19 23.44
04-20 25.88
04-21 31.24
04-22 37.01
04-23 41.83
04-24 34.64
04-25 33.04
04-26 36.04
04-27 39.46
04-28 33.96
04-29 35.33
04-30 37.3
05-01 35.04
05-02 38.37
05-03 54.16
05-04 59.66
05-05 55.38
05-06 57.63
05-07 60.51
05-08 51.42
05-09 54.6
05-10 52.86
05-11 51.91
05-12 58.14
05-13 59.17
05-14 52.04
05-15 66.37
05-16 67.17
05-17 65.79
05-18 71.11
05-19 70.82
05-20 73.81
05-21 72.61
05-22 68.76
05-23 102.4
05-24 121.85
05-25 143.7
05-26 139.11
05-27 136.32
05-28 132.1
05-29 132.49
05-30 127.37
05-31 131.73
06-01 124.2
06-02 126.3
06-03 124.18
06-04 109.74
06-05 113.62
06-06 112.97
06-07 111.41
06-08 111.36
06-09 131.41
06-10 128.81
06-11 114.07
06-12 109.13
06-13 135.31
06-14 125.98
06-15 111.28
06-16 103.88
06-17 97.16
06-18 94.02
06-19 92.98
06-20 88.47
06-21 82.11
06-22 74.34
06-23 80.87
06-24 73.48
06-25 70.38
06-26 65.8
06-27 62.72
06-28 63.84
06-29 58.11
06-30 49.82
07-01 53.26
07-02 50.78
07-03 47.6
07-04 44.0
07-05 43.14
07-06 40.62
07-07 42.82
07-08 41.93
07-09 41.66
07-10 40.2
07-11 40.2
07-12 40.49
07-13 42.5
07-14 41.19
07-15 38.51
07-16 38.2
07-17 40.85
07-18 42.7
07-19 41.19
07-20 42.07
07-21 42.33
07-22 41.76
07-23 41.82
07-24 41.55
07-25 41.79
07-26 44.7
07-27 46.23
07-28 49.2
07-29 49.29
07-30 54.23
07-31 52.73
08-01 56.16
08-02 56.69
08-03 56.88
08-04 55.99
08-05 59.0
08-06 56.96
08-07 56.89
08-08 57.15
08-09 59.1
08-10 56.63
08-11 55.19
08-12 55.5
08-13 53.13
08-14 51.74
08-15 50.83
08-16 50.54
08-17 50.35
08-18 50.26
08-19 50.14
08-20 49.95
08-21 49.44
08-22 47.63
08-23 48.31
08-24 48.13
08-25 48.2
08-26 46.71
08-27 46.62
08-28 46.01
08-29 45.74
08-30 45.29
08-31 43.7
09-01 42.2
09-02 41.49
09-03 44.21
09-04 44.54
09-05 44.18
09-06 43.4
09-07 42.21
09-08 40.06
09-09 37.16
09-10 35.68
09-11 34.91
09-12 34.6
09-13 34.27
09-14 34.53
09-15 34.0
09-16 32.54
09-17 31.14
09-18 30.03
09-19 28.83
09-20 27.32
09-21 26.28
09-22 25.64
09-23 27.19
09-24 27.48
09-25 26.26
09-26 24.84
09-27 25.7
09-28 25.64
09-29 26.04
09-30 25.8
10-01 25.93
10-02 25.98
10-03 26.35
10-04 24.65
10-05 24.38
10-06 23.33
10-07 23.82
10-08 22.69
10-09 22.01
10-10 22.0
10-11 21.88
10-12 21.3
10-13 21.61
10-14 21.76
10-15 21.43
10-16 21.29
10-17 21.25
10-18 21.44
10-19 21.55
10-20 21.55
10-21 21.36
10-22 21.3
10-23 21.63
10-24 21.36
10-25 21.68
10-26 21.36
10-27 21.24
10-28 21.3
10-29 21.49
10-30 21.05
10-31 21.24
11-01 21.44
11-02 21.07
11-03 20.79
11-04 20.74
11-05 20.94
11-06 20.69
11-07 20.5
11-08 20.36
11-09 20.06
11-10 20.44
11-11 20.5
11-12 20.93
11-13 20.83
11-14 21.63
11-15 21.32
11-16 21.39
11-17 21.22
11-18 21.01
11-19 21.2
11-20 20.94
11-21 21.31
11-22 21.05
11-23 21.19
11-24 21.01
11-25 21.4
11-26 21.4
11-27 21.01
11-28 21.13
11-29 20.99
11-30 20.94
12-01 20.75
12-02 21.06
12-03 21.04
12-04 21.88
12-05 21.77
12-06 21.9
12-07 21.4
12-08 21.68
12-09 21.6
12-10 22.32
12-11 22.17
12-12 22.5
12-13 22.5
12-14 21.92
12-15 22.35
12-16 22.23
12-17 23.63
12-18 22.18
12-19 22.52
12-20 22.42
12-21 22.52
12-22 22.25
12-23 22.1
12-24 29.6
12-25 55.7
12-26 51.6
12-27 21.4
12-28 20.2
12-29 34.28
12-30 25.87
12-31 22.35

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index