Overview Realtime Historical Map View
Coastal Flood Warning
2026-09-25T17:00:00-04:00

* WHAT...Up to one foot of inundation above ground level in low lying areas due to tidal flooding. * WHERE...Shoreline in St. Marys County. * WHEN...Until 5 PM EDT Friday, especially around the time of high tide. * IMPACTS...At 3.5 feet, water covers roads on Saint George Island, is in yards, and is approaching structures. To the east, inundation is occurring at multiple marinas off St. Mary's River, Smith Creek, and Jutland Creek. * ADDITIONAL DETAILS...Tides two to two and a half feet above normal. The next high tide at Coltons Point is at 2:27 AM and 2:45 PM. The next high tide at Point Lookout is at 12:40 AM and 1:10 PM. The next high tide at Piney Point is at 1:51 AM and 2:09 PM.

St Clement Creek Near Clements, Md 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 23.2
01-02 34.81
01-03 25.23
01-04 28.56
01-05 22.93
01-06 22.64
01-07 35.07
01-08 21.95
01-09 20.43
01-10 70.58
01-11 32.86
01-12 34.36
01-13 36.65
01-14 23.23
01-15 20.15
01-16 28.35
01-17 43.41
01-18 29.52
01-19 29.64
01-20 20.06
01-21 17.35
01-22 16.01
01-23 14.95
01-24 16.65
01-25 24.56
01-26 24.64
01-27 18.4
01-28 23.53
01-29 28.66
01-30 18.66
01-31 15.04
02-01 25.25
02-02 23.89
02-03 20.62
02-04 30.69
02-05 26.04
02-06 18.68
02-07 26.85
02-08 24.74
02-09 16.79
02-10 14.84
02-11 24.75
02-12 39.08
02-13 35.64
02-14 33.71
02-15 25.77
02-16 40.94
02-17 39.18
02-18 31.23
02-19 21.46
02-20 24.42
02-21 36.52
02-22 24.5
02-23 35.13
02-24 29.74
02-25 43.79
02-26 23.29
02-27 21.04
02-28 20.23
02-29 23.52
03-01 33.96
03-02 28.22
03-03 32.21
03-04 29.9
03-05 24.48
03-06 30.28
03-07 54.92
03-08 26.16
03-09 24.18
03-10 28.67
03-11 22.36
03-12 18.3
03-13 26.18
03-14 18.17
03-15 20.01
03-16 16.83
03-17 16.03
03-18 40.1
03-19 25.46
03-20 22.19
03-21 27.95
03-22 32.51
03-23 22.84
03-24 33.43
03-25 42.91
03-26 22.08
03-27 18.19
03-28 26.16
03-29 20.99
03-30 24.44
03-31 22.84
04-01 31.48
04-02 22.17
04-03 18.72
04-04 22.55
04-05 17.23
04-06 19.46
04-07 20.77
04-08 26.58
04-09 18.71
04-10 15.67
04-11 14.87
04-12 39.49
04-13 20.24
04-14 15.15
04-15 21.61
04-16 21.19
04-17 20.2
04-18 13.87
04-19 28.28
04-20 20.51
04-21 20.35
04-22 16.31
04-23 21.77
04-24 16.71
04-25 18.2
04-26 24.44
04-27 17.42
04-28 14.7
04-29 23.72
04-30 18.81
05-01 44.21
05-02 21.71
05-03 19.95
05-04 23.34
05-05 18.22
05-06 22.67
05-07 22.57
05-08 19.77
05-09 14.67
05-10 14.06
05-11 11.87
05-12 19.04
05-13 21.33
05-14 23.75
05-15 22.85
05-16 35.0
05-17 36.48
05-18 21.97
05-19 39.22
05-20 27.41
05-21 12.31
05-22 19.28
05-23 27.68
05-24 20.02
05-25 13.16
05-26 14.83
05-27 10.44
05-28 17.63
05-29 18.94
05-30 41.08
05-31 21.8
06-01 10.8
06-02 26.39
06-03 16.4
06-04 21.46
06-05 16.59
06-06 11.19
06-07 8.86
06-08 13.28
06-09 14.47
06-10 10.5
06-11 24.57
06-12 15.78
06-13 16.42
06-14 20.76
06-15 9.81
06-16 7.88
06-17 9.44
06-18 13.94
06-19 10.54
06-20 14.23
06-21 17.63
06-22 11.53
06-23 13.13
06-24 27.18
06-25 10.24
06-26 25.0
06-27 13.74
06-28 31.66
06-29 11.65
06-30 6.92
07-01 5.89
07-02 7.05
07-03 15.87
07-04 8.12
07-05 14.61
07-06 8.13
07-07 64.06
07-08 18.66
07-09 21.75
07-10 25.9
07-11 11.58
07-12 15.19
07-13 24.12
07-14 10.92
07-15 28.39
07-16 44.3
07-17 20.59
07-18 9.16
07-19 11.03
07-20 8.12
07-21 5.63
07-22 32.43
07-23 26.68
07-24 11.45
07-25 28.22
07-26 11.1
07-27 28.38
07-28 7.57
07-29 10.71
07-30 8.33
07-31 7.33
08-01 28.28
08-02 12.89
08-03 8.53
08-04 12.61
08-05 33.98
08-06 19.19
08-07 11.18
08-08 8.7
08-09 5.73
08-10 11.62
08-11 9.78
08-12 6.97
08-13 15.41
08-14 15.15
08-15 22.6
08-16 9.33
08-17 23.46
08-18 14.1
08-19 37.7
08-20 15.92
08-21 13.19
08-22 202.6
08-23 18.58
08-24 8.98
08-25 6.31
08-26 5.06
08-27 6.12
08-28 265.84
08-29 39.57
08-30 19.93
08-31 7.1
09-01 5.03
09-02 8.58
09-03 5.65
09-04 6.98
09-05 5.67
09-06 4.14
09-07 13.98
09-08 27.44
09-09 24.23
09-10 18.36
09-11 36.72
09-12 15.15
09-13 13.79
09-14 8.12
09-15 7.3
09-16 5.58
09-17 6.73
09-18 9.93
09-19 8.92
09-20 9.41
09-21 5.56
09-22 5.33
09-23 6.64
09-24 34.47
09-25 13.65
09-26 13.51
09-27 11.07
09-28 11.96
09-29 21.49
09-30 43.56
10-01 17.03
10-02 19.06
10-03 20.17
10-04 13.15
10-05 11.09
10-06 12.61
10-07 9.94
10-08 10.22
10-09 16.32
10-10 16.87
10-11 12.81
10-12 64.11
10-13 29.13
10-14 17.42
10-15 14.18
10-16 15.51
10-17 22.91
10-18 13.49
10-19 11.86
10-20 12.02
10-21 17.5
10-22 13.65
10-23 13.95
10-24 13.03
10-25 12.72
10-26 17.54
10-27 23.34
10-28 20.87
10-29 17.47
10-30 116.29
10-31 42.83
11-01 20.56
11-02 22.93
11-03 18.09
11-04 16.13
11-05 14.78
11-06 27.66
11-07 21.63
11-08 20.73
11-09 17.01
11-10 21.16
11-11 19.81
11-12 48.87
11-13 38.14
11-14 24.62
11-15 19.46
11-16 33.52
11-17 23.36
11-18 20.9
11-19 18.5
11-20 17.37
11-21 15.12
11-22 23.82
11-23 20.42
11-24 19.0
11-25 35.04
11-26 17.88
11-27 24.14
11-28 25.65
11-29 16.9
11-30 16.54
12-01 23.91
12-02 23.32
12-03 21.25
12-04 16.42
12-05 19.47
12-06 21.55
12-07 25.14
12-08 43.02
12-09 21.24
12-10 22.41
12-11 37.97
12-12 23.58
12-13 16.43
12-14 15.97
12-15 29.86
12-16 61.05
12-17 45.12
12-18 57.42
12-19 26.31
12-20 19.32
12-21 23.43
12-22 20.52
12-23 29.96
12-24 37.24
12-25 41.62
12-26 21.76
12-27 29.52
12-28 47.24
12-29 44.2
12-30 34.87
12-31 22.83

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index