Overview Realtime Historical Map View
Coastal Flood Advisory
2026-10-23T03:00:00-04:00

* WHAT...Up to one half foot of inundation above ground level in low lying areas due to tidal flooding. * WHERE...Shoreline in Charles and King George Counties. * WHEN...Until 3 AM EDT early this morning, especially around the time of high tide. * IMPACTS...At 3.5 feet, water reaches yards near Cobb Island and docks near Dahlgren. * ADDITIONAL DETAILS...Tides one and a half to two feet above normal. High tide at Goose Bay is at 2:17 AM. High tide at Dahlgren is at 12:54 AM. High tide at Indian Head is at 6:11 AM.

Mattawoman Creek Near Pomonkey, 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 63.49
01-02 91.79
01-03 90.93
01-04 83.58
01-05 77.33
01-06 71.74
01-07 77.38
01-08 70.6
01-09 53.8
01-10 182.21
01-11 198.07
01-12 105.63
01-13 130.28
01-14 92.79
01-15 66.58
01-16 59.36
01-17 80.22
01-18 94.33
01-19 84.76
01-20 73.13
01-21 84.71
01-22 49.76
01-23 43.68
01-24 44.88
01-25 96.93
01-26 106.79
01-27 67.37
01-28 62.4
01-29 119.85
01-30 70.08
01-31 46.2
02-01 70.6
02-02 75.08
02-03 66.71
02-04 98.68
02-05 142.37
02-06 77.16
02-07 90.33
02-08 111.87
02-09 77.61
02-10 57.92
02-11 76.52
02-12 221.92
02-13 145.04
02-14 131.5
02-15 92.58
02-16 94.6
02-17 152.47
02-18 117.59
02-19 90.54
02-20 93.02
02-21 106.58
02-22 97.56
02-23 102.59
02-24 114.64
02-25 165.12
02-26 108.52
02-27 71.41
02-28 79.32
02-29 58.67
03-01 103.37
03-02 114.56
03-03 103.93
03-04 98.06
03-05 89.63
03-06 102.7
03-07 114.38
03-08 112.76
03-09 83.09
03-10 92.04
03-11 79.41
03-12 63.29
03-13 88.97
03-14 76.86
03-15 60.86
03-16 50.4
03-17 46.54
03-18 67.11
03-19 82.32
03-20 72.59
03-21 84.87
03-22 135.16
03-23 92.09
03-24 99.4
03-25 98.93
03-26 77.91
03-27 61.07
03-28 77.74
03-29 77.44
03-30 63.33
03-31 86.2
04-01 113.19
04-02 98.57
04-03 60.45
04-04 69.63
04-05 71.03
04-06 54.75
04-07 102.13
04-08 105.36
04-09 85.62
04-10 61.33
04-11 44.1
04-12 58.89
04-13 96.19
04-14 87.54
04-15 83.92
04-16 101.73
04-17 100.92
04-18 53.18
04-19 60.8
04-20 70.76
04-21 86.36
04-22 64.44
04-23 42.73
04-24 40.05
04-25 55.2
04-26 78.6
04-27 59.98
04-28 37.85
04-29 48.03
04-30 62.72
05-01 144.46
05-02 107.9
05-03 74.8
05-04 59.8
05-05 89.08
05-06 94.38
05-07 93.91
05-08 112.52
05-09 69.5
05-10 40.98
05-11 31.37
05-12 49.22
05-13 50.33
05-14 81.94
05-15 52.8
05-16 47.86
05-17 90.61
05-18 68.7
05-19 91.34
05-20 101.85
05-21 42.1
05-22 42.21
05-23 54.12
05-24 78.61
05-25 35.59
05-26 33.27
05-27 23.45
05-28 27.16
05-29 42.82
05-30 44.07
05-31 37.65
06-01 25.91
06-02 20.82
06-03 34.6
06-04 78.66
06-05 71.64
06-06 30.27
06-07 18.75
06-08 38.88
06-09 37.66
06-10 20.0
06-11 62.69
06-12 93.14
06-13 32.66
06-14 39.49
06-15 18.53
06-16 37.57
06-17 31.89
06-18 21.77
06-19 31.71
06-20 48.1
06-21 57.42
06-22 52.4
06-23 23.8
06-24 25.47
06-25 15.03
06-26 12.42
06-27 25.56
06-28 41.95
06-29 31.7
06-30 41.32
07-01 13.64
07-02 22.21
07-03 34.75
07-04 16.02
07-05 19.3
07-06 16.85
07-07 46.21
07-08 137.87
07-09 242.69
07-10 83.8
07-11 32.16
07-12 42.93
07-13 40.84
07-14 39.41
07-15 34.19
07-16 26.69
07-17 25.14
07-18 13.94
07-19 16.15
07-20 19.05
07-21 11.17
07-22 89.2
07-23 113.91
07-24 122.37
07-25 57.55
07-26 28.73
07-27 16.7
07-28 14.55
07-29 17.4
07-30 79.33
07-31 38.29
08-01 45.84
08-02 20.84
08-03 43.8
08-04 64.76
08-05 425.39
08-06 142.48
08-07 50.61
08-08 43.98
08-09 28.7
08-10 16.25
08-11 59.96
08-12 173.98
08-13 171.97
08-14 271.79
08-15 100.91
08-16 64.61
08-17 79.06
08-18 52.41
08-19 33.9
08-20 17.78
08-21 29.81
08-22 31.03
08-23 28.51
08-24 16.54
08-25 10.83
08-26 7.29
08-27 6.39
08-28 64.59
08-29 142.44
08-30 193.89
08-31 93.45
09-01 33.84
09-02 78.39
09-03 46.88
09-04 22.05
09-05 38.97
09-06 32.16
09-07 83.48
09-08 203.14
09-09 186.1
09-10 174.36
09-11 119.72
09-12 109.72
09-13 44.82
09-14 28.28
09-15 19.8
09-16 15.31
09-17 12.96
09-18 16.07
09-19 22.29
09-20 16.88
09-21 16.75
09-22 14.98
09-23 11.68
09-24 139.41
09-25 118.32
09-26 62.66
09-27 51.57
09-28 50.46
09-29 77.32
09-30 82.75
10-01 60.38
10-02 44.34
10-03 58.2
10-04 31.59
10-05 27.87
10-06 23.92
10-07 16.73
10-08 12.98
10-09 11.68
10-10 27.84
10-11 22.66
10-12 189.48
10-13 204.13
10-14 63.85
10-15 41.56
10-16 28.35
10-17 26.62
10-18 26.76
10-19 17.97
10-20 16.88
10-21 23.0
10-22 15.93
10-23 15.39
10-24 15.88
10-25 11.66
10-26 38.88
10-27 44.28
10-28 79.1
10-29 33.39
10-30 164.78
10-31 187.59
11-01 75.39
11-02 58.75
11-03 50.65
11-04 44.12
11-05 18.81
11-06 75.25
11-07 96.89
11-08 45.51
11-09 28.41
11-10 28.65
11-11 25.81
11-12 63.23
11-13 103.91
11-14 81.12
11-15 38.51
11-16 63.63
11-17 90.35
11-18 55.86
11-19 29.58
11-20 23.11
11-21 19.86
11-22 22.17
11-23 36.28
11-24 44.3
11-25 63.75
11-26 53.75
11-27 44.6
11-28 61.09
11-29 42.99
11-30 29.8
12-01 80.63
12-02 50.17
12-03 44.28
12-04 39.95
12-05 36.67
12-06 85.79
12-07 51.03
12-08 137.89
12-09 97.58
12-10 87.91
12-11 79.26
12-12 120.71
12-13 59.73
12-14 37.98
12-15 67.01
12-16 158.01
12-17 178.92
12-18 133.09
12-19 195.47
12-20 62.85
12-21 49.76
12-22 66.15
12-23 61.44
12-24 82.82
12-25 106.26
12-26 87.53
12-27 79.37
12-28 121.97
12-29 181.74
12-30 131.52
12-31 91.35

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index