Overview Realtime Historical Map View
Winter Weather Advisory
2026-10-24T00:00:00-06:00

* WHAT...Snow expected above 6000 feet. Total snow accumulations trace to three inches. A period of moderate snow showers may develop around rush hour. * WHERE...MacDonald and Homestake Pass along with Georgetown Lake. * WHEN...From 3 PM Friday to midnight MDT Friday Night. * IMPACTS...Plan on slippery road conditions. The hazardous conditions will impact the Friday evening commute.

Willow Creek At Opportunity, Mt Historical Data

Historical Data


Streamflow Range


Date Average 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011
01-01 4.66
01-02 4.8
01-03 4.65
01-04 4.33
01-05 4.51
01-06 4.84
01-07 4.81
01-08 4.38
01-09 4.24
01-10 4.17
01-11 4.09
01-12 4.22
01-13 4.21
01-14 4.25
01-15 4.14
01-16 4.1
01-17 4.21
01-18 4.14
01-19 4.93
01-20 4.67
01-21 4.28
01-22 4.29
01-23 4.63
01-24 4.57
01-25 4.65
01-26 4.63
01-27 4.51
01-28 4.52
01-29 5.02
01-30 5.19
01-31 4.18
02-01 4.39
02-02 4.55
02-03 5.03
02-04 4.9
02-05 5.06
02-06 5.13
02-07 4.75
02-08 4.85
02-09 4.73
02-10 6.08
02-11 4.78
02-12 4.92
02-13 5.33
02-14 5.46
02-15 8.5
02-16 5.39
02-17 5.16
02-18 4.57
02-19 4.58
02-20 5.31
02-21 4.71
02-22 4.8
02-23 4.58
02-24 4.48
02-25 5.02
02-26 7.68
02-27 4.78
02-28 4.76
02-29 5.91
03-01 4.51
03-02 4.87
03-03 16.08
03-04 5.24
03-05 4.91
03-06 5.42
03-07 6.88
03-08 9.42
03-09 7.55
03-10 13.28
03-11 8.06
03-12 6.44
03-13 6.23
03-14 6.58
03-15 7.23
03-16 6.97
03-17 6.56
03-18 6.78
03-19 6.65
03-20 6.93
03-21 6.94
03-22 8.13
03-23 7.26
03-24 7.36
03-25 7.31
03-26 7.48
03-27 7.15
03-28 7.11
03-29 7.31
03-30 7.19
03-31 7.64
04-01 7.79
04-02 8.02
04-03 7.97
04-04 9.1
04-05 10.96
04-06 11.4
04-07 11.14
04-08 16.23
04-09 8.08
04-10 10.2
04-11 9.13
04-12 9.06
04-13 10.17
04-14 10.62
04-15 9.94
04-16 9.44
04-17 9.48
04-18 9.51
04-19 9.5
04-20 9.9
04-21 10.74
04-22 11.22
04-23 12.19
04-24 14.06
04-25 14.98
04-26 15.55
04-27 16.09
04-28 15.57
04-29 15.6
04-30 16.55
05-01 16.81
05-02 15.13
05-03 14.64
05-04 15.23
05-05 16.05
05-06 17.35
05-07 19.64
05-08 18.25
05-09 19.13
05-10 17.41
05-11 21.77
05-12 20.71
05-13 20.85
05-14 19.03
05-15 21.35
05-16 23.11
05-17 25.6
05-18 27.9
05-19 28.06
05-20 30.44
05-21 29.19
05-22 29.44
05-23 28.26
05-24 29.64
05-25 33.41
05-26 35.96
05-27 38.23
05-28 34.31
05-29 32.34
05-30 31.2
05-31 30.9
06-01 32.25
06-02 30.68
06-03 31.41
06-04 31.71
06-05 30.41
06-06 29.44
06-07 31.09
06-08 31.59
06-09 34.29
06-10 34.97
06-11 31.56
06-12 32.24
06-13 38.5
06-14 32.59
06-15 28.2
06-16 27.5
06-17 34.01
06-18 34.63
06-19 37.69
06-20 36.98
06-21 35.03
06-22 31.49
06-23 28.78
06-24 27.84
06-25 26.84
06-26 25.52
06-27 24.17
06-28 25.39
06-29 29.48
06-30 29.03
07-01 25.12
07-02 23.58
07-03 21.44
07-04 23.16
07-05 21.35
07-06 20.81
07-07 20.56
07-08 20.01
07-09 19.3
07-10 17.61
07-11 16.98
07-12 17.83
07-13 16.35
07-14 16.67
07-15 16.77
07-16 15.43
07-17 16.41
07-18 12.59
07-19 13.12
07-20 12.67
07-21 11.15
07-22 11.14
07-23 11.07
07-24 11.23
07-25 10.97
07-26 10.74
07-27 10.61
07-28 11.34
07-29 11.04
07-30 11.3
07-31 11.08
08-01 11.15
08-02 11.76
08-03 11.0
08-04 10.67
08-05 10.64
08-06 11.02
08-07 10.79
08-08 11.15
08-09 11.05
08-10 11.08
08-11 10.77
08-12 10.64
08-13 9.94
08-14 10.08
08-15 10.06
08-16 9.7
08-17 9.19
08-18 7.49
08-19 7.92
08-20 7.83
08-21 8.51
08-22 8.56
08-23 8.4
08-24 8.67
08-25 7.89
08-26 7.89
08-27 7.95
08-28 8.04
08-29 7.73
08-30 7.54
08-31 7.02
09-01 7.49
09-02 7.29
09-03 7.05
09-04 6.48
09-05 6.75
09-06 7.0
09-07 6.84
09-08 6.83
09-09 7.02
09-10 6.94
09-11 6.75
09-12 6.58
09-13 6.59
09-14 6.54
09-15 6.51
09-16 6.69
09-17 6.46
09-18 6.38
09-19 6.36
09-20 6.74
09-21 6.67
09-22 6.77
09-23 7.12
09-24 6.45
09-25 6.81
09-26 6.67
09-27 6.78
09-28 6.74
09-29 6.64
09-30 6.85
10-01 7.11
10-02 6.75
10-03 6.59
10-04 6.56
10-05 7.06
10-06 6.65
10-07 6.64
10-08 6.49
10-09 6.71
10-10 6.66
10-11 6.73
10-12 6.48
10-13 6.78
10-14 6.97
10-15 6.81
10-16 6.27
10-17 6.36
10-18 6.26
10-19 6.04
10-20 5.75
10-21 5.74
10-22 5.75
10-23 6.06
10-24 6.1
10-25 6.21
10-26 5.98
10-27 6.1
10-28 5.74
10-29 5.88
10-30 5.84
10-31 5.67
11-01 5.92
11-02 6.02
11-03 6.14
11-04 6.12
11-05 5.99
11-06 5.69
11-07 5.57
11-08 5.79
11-09 5.61
11-10 5.64
11-11 5.33
11-12 5.34
11-13 5.34
11-14 5.35
11-15 5.14
11-16 5.58
11-17 5.14
11-18 5.21
11-19 5.39
11-20 5.48
11-21 5.03
11-22 5.24
11-23 4.98
11-24 5.1
11-25 5.06
11-26 5.07
11-27 6.18
11-28 7.27
11-29 6.25
11-30 5.86
12-01 5.67
12-02 5.62
12-03 5.7
12-04 5.68
12-05 5.22
12-06 5.45
12-07 5.3
12-08 5.32
12-09 4.84
12-10 5.25
12-11 5.07
12-12 5.13
12-13 5.08
12-14 4.99
12-15 4.86
12-16 6.01
12-17 4.9
12-18 5.07
12-19 5.29
12-20 5.17
12-21 5.04
12-22 5.63
12-23 5.25
12-24 5.19
12-25 5.13
12-26 5.01
12-27 5.18
12-28 5.14
12-29 4.7
12-30 4.94
12-31 4.77

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index