Overview Realtime Historical Map View
Flood Watch
2026-08-15T22:00:00-06:00

* WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of central, east central, and southeast Colorado, including the following areas, Teller, El Paso, Huerfano, Las Animas, Crowley, Otero, Kiowa, Bent and Prowers Counties. * WHEN...Until 10 PM MDT this evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - Abundant monsoon moisture will result in scattered to numerous thunderstorms this afternoon and evening which will be capable of producing heavy rainfall and flash flooding, especially for urban areas or locations with already saturated soil conditions. - http://www.weather.gov/safety/flood

Big Sandy Creek Near Lamar, Co. Historical Data

Historical Data


Streamflow Range


Date Average 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012
01-01 6.67
01-02 6.77
01-03 6.41
01-04 6.82
01-05 7.17
01-06 7.35
01-07 7.41
01-08 7.68
01-09 6.96
01-10 7.46
01-11 7.84
01-12 8.1
01-13 8.24
01-14 7.98
01-15 7.84
01-16 8.02
01-17 8.53
01-18 8.43
01-19 8.43
01-20 8.37
01-21 8.63
01-22 8.71
01-23 8.53
01-24 8.85
01-25 8.68
01-26 8.8
01-27 8.5
01-28 8.73
01-29 8.75
01-30 8.75
01-31 8.81
02-01 8.95
02-02 8.78
02-03 8.57
02-04 8.44
02-05 8.1
02-06 8.05
02-07 7.55
02-08 7.76
02-09 8.47
02-10 8.48
02-11 7.48
02-12 7.62
02-13 7.33
02-14 7.65
02-15 7.9
02-16 7.77
02-17 7.27
02-18 6.95
02-19 7.73
02-20 7.6
02-21 8.06
02-22 7.67
02-23 7.62
02-24 7.46
02-25 6.69
02-26 6.96
02-27 8.25
02-28 7.31
02-29 9.05
03-01 7.81
03-02 8.05
03-03 6.41
03-04 7.73
03-05 7.67
03-06 7.67
03-07 7.3
03-08 7.43
03-09 8.22
03-10 9.17
03-11 9.09
03-12 9.05
03-13 8.74
03-14 10.9
03-15 11.94
03-16 9.29
03-17 9.46
03-18 8.66
03-19 8.06
03-20 8.01
03-21 8.04
03-22 7.81
03-23 8.83
03-24 8.5
03-25 8.4
03-26 7.67
03-27 6.98
03-28 6.12
03-29 8.92
03-30 9.22
03-31 10.11
04-01 10.75
04-02 11.86
04-03 12.38
04-04 12.63
04-05 11.42
04-06 12.52
04-07 14.82
04-08 14.91
04-09 14.27
04-10 8.1
04-11 8.56
04-12 10.34
04-13 7.77
04-14 7.26
04-15 5.99
04-16 6.79
04-17 7.07
04-18 8.56
04-19 9.6
04-20 8.33
04-21 11.46
04-22 11.37
04-23 9.79
04-24 10.22
04-25 9.16
04-26 11.14
04-27 10.93
04-28 10.56
04-29 7.99
04-30 7.68
05-01 19.22
05-02 12.51
05-03 14.18
05-04 11.81
05-05 12.95
05-06 11.38
05-07 12.25
05-08 10.75
05-09 15.7
05-10 15.45
05-11 35.91
05-12 39.1
05-13 33.37
05-14 16.47
05-15 17.88
05-16 21.53
05-17 21.11
05-18 23.44
05-19 20.03
05-20 26.56
05-21 25.54
05-22 25.8
05-23 26.72
05-24 25.94
05-25 27.52
05-26 25.24
05-27 20.69
05-28 19.68
05-29 18.62
05-30 21.07
05-31 22.23
06-01 21.77
06-02 21.58
06-03 19.4
06-04 19.68
06-05 17.67
06-06 18.49
06-07 20.51
06-08 22.03
06-09 21.62
06-10 20.26
06-11 20.47
06-12 19.13
06-13 17.91
06-14 20.1
06-15 17.4
06-16 19.63
06-17 24.07
06-18 17.86
06-19 19.91
06-20 23.31
06-21 16.98
06-22 19.11
06-23 18.98
06-24 18.52
06-25 20.36
06-26 20.04
06-27 18.98
06-28 13.8
06-29 15.06
06-30 14.67
07-01 14.15
07-02 10.55
07-03 13.99
07-04 11.84
07-05 12.0
07-06 12.71
07-07 14.61
07-08 12.44
07-09 13.74
07-10 15.65
07-11 18.37
07-12 17.33
07-13 13.35
07-14 16.96
07-15 15.66
07-16 19.13
07-17 22.34
07-18 18.32
07-19 16.06
07-20 13.6
07-21 15.37
07-22 14.25
07-23 13.3
07-24 18.63
07-25 24.25
07-26 15.69
07-27 29.88
07-28 20.93
07-29 21.67
07-30 71.93
07-31 23.38
08-01 25.77
08-02 17.21
08-03 19.38
08-04 22.25
08-05 17.04
08-06 16.57
08-07 17.63
08-08 23.32
08-09 20.36
08-10 19.15
08-11 24.45
08-12 23.28
08-13 25.09
08-14 23.27
08-15 16.45
08-16 12.49
08-17 13.42
08-18 15.29
08-19 19.41
08-20 18.8
08-21 19.8
08-22 21.26
08-23 22.59
08-24 34.58
08-25 24.65
08-26 23.47
08-27 23.91
08-28 24.1
08-29 22.79
08-30 25.47
08-31 24.13
09-01 24.11
09-02 25.89
09-03 14.1
09-04 13.84
09-05 14.03
09-06 13.91
09-07 16.72
09-08 15.07
09-09 16.29
09-10 14.2
09-11 16.74
09-12 18.15
09-13 17.77
09-14 17.67
09-15 16.69
09-16 18.4
09-17 15.59
09-18 16.35
09-19 15.39
09-20 15.85
09-21 16.75
09-22 14.67
09-23 16.63
09-24 19.9
09-25 28.77
09-26 22.09
09-27 19.39
09-28 18.69
09-29 17.89
09-30 17.66
10-01 16.84
10-02 16.88
10-03 15.74
10-04 15.84
10-05 17.86
10-06 17.82
10-07 19.41
10-08 19.02
10-09 18.97
10-10 19.64
10-11 18.9
10-12 19.44
10-13 19.15
10-14 17.5
10-15 18.69
10-16 21.2
10-17 22.6
10-18 23.76
10-19 25.23
10-20 25.58
10-21 26.12
10-22 25.71
10-23 24.51
10-24 18.16
10-25 18.93
10-26 21.49
10-27 17.33
10-28 16.23
10-29 16.85
10-30 17.52
10-31 16.86
11-01 43.08
11-02 21.51
11-03 18.13
11-04 16.44
11-05 16.78
11-06 16.93
11-07 15.32
11-08 15.85
11-09 16.43
11-10 17.08
11-11 15.48
11-12 15.97
11-13 16.13
11-14 15.69
11-15 15.73
11-16 15.47
11-17 15.65
11-18 15.52
11-19 15.23
11-20 14.06
11-21 13.71
11-22 13.41
11-23 12.72
11-24 12.45
11-25 12.27
11-26 11.65
11-27 11.31
11-28 11.11
11-29 9.95
11-30 9.97
12-01 10.17
12-02 9.94
12-03 9.81
12-04 9.58
12-05 9.44
12-06 9.28
12-07 9.03
12-08 8.79
12-09 8.83
12-10 8.73
12-11 9.52
12-12 8.6
12-13 8.62
12-14 8.37
12-15 8.32
12-16 8.58
12-17 8.39
12-18 8.41
12-19 7.97
12-20 7.86
12-21 8.27
12-22 8.19
12-23 7.84
12-24 7.94
12-25 8.07
12-26 7.42
12-27 7.85
12-28 7.53
12-29 7.69
12-30 7.0
12-31 7.07

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index