Overview Realtime Historical Map View
Flood Watch
2026-09-13T18:00:00-04:00

* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of northern Connecticut, including the following area, Windham CT and Massachusetts, including the following areas, Eastern Norfolk MA, Southern Worcester MA, Suffolk MA and Western Norfolk MA. * WHEN...From late tonight through Sunday afternoon. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - Showers and a few embedded thunderstorms with localized narrow bands of torrential rainfall are possible very late tonight into Sunday afternoon. Widespread rainfall amounts of 0.50 to 2 inches are expected. However...localized narrow bands of 2-4" of rain are possible within a 3 hour period. While it remains uncertain if these narrow bands of heavier rain occur...the potential exists for localized flash flooding...especially if it were to occur over a vulnerable urban center. - http://www.weather.gov/safety/flood

Mother Brook At Dedham, Ma Historical Data

Historical Data


Streamflow Range


Date Average 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011
01-01 146.38
01-02 136.18
01-03 129.21
01-04 115.38
01-05 106.69
01-06 106.57
01-07 104.11
01-08 103.36
01-09 88.73
01-10 100.11
01-11 134.38
01-12 134.79
01-13 151.3
01-14 150.24
01-15 152.78
01-16 143.15
01-17 153.23
01-18 104.04
01-19 149.54
01-20 133.6
01-21 139.73
01-22 116.57
01-23 102.55
01-24 97.0
01-25 93.91
01-26 108.24
01-27 108.27
01-28 111.1
01-29 114.77
01-30 117.74
01-31 106.43
02-01 102.25
02-02 101.68
02-03 94.63
02-04 98.54
02-05 94.02
02-06 82.72
02-07 98.04
02-08 101.49
02-09 98.22
02-10 96.97
02-11 103.88
02-12 100.45
02-13 95.56
02-14 105.22
02-15 82.44
02-16 81.76
02-17 103.96
02-18 97.0
02-19 77.99
02-20 89.1
02-21 90.15
02-22 88.74
02-23 91.15
02-24 94.68
02-25 100.51
02-26 132.59
02-27 87.75
02-28 104.13
02-29 101.0
03-01 107.95
03-02 113.44
03-03 118.83
03-04 119.27
03-05 117.38
03-06 124.74
03-07 140.14
03-08 146.13
03-09 147.78
03-10 149.66
03-11 158.35
03-12 158.3
03-13 170.98
03-14 169.86
03-15 179.78
03-16 176.02
03-17 179.98
03-18 168.93
03-19 161.67
03-20 146.13
03-21 139.73
03-22 136.49
03-23 126.34
03-24 136.35
03-25 134.88
03-26 128.23
03-27 130.79
03-28 134.07
03-29 148.1
03-30 148.59
03-31 164.86
04-01 175.85
04-02 189.91
04-03 162.33
04-04 185.56
04-05 200.01
04-06 208.06
04-07 201.05
04-08 202.96
04-09 210.29
04-10 180.64
04-11 162.03
04-12 135.91
04-13 129.74
04-14 117.5
04-15 106.59
04-16 114.46
04-17 135.39
04-18 118.48
04-19 136.59
04-20 126.32
04-21 124.28
04-22 134.41
04-23 130.04
04-24 144.94
04-25 125.21
04-26 149.89
04-27 167.84
04-28 146.48
04-29 135.24
04-30 133.45
05-01 137.45
05-02 140.68
05-03 126.43
05-04 124.56
05-05 120.3
05-06 114.63
05-07 120.09
05-08 108.75
05-09 103.52
05-10 104.45
05-11 102.83
05-12 97.81
05-13 94.72
05-14 83.63
05-15 69.58
05-16 67.43
05-17 74.99
05-18 88.58
05-19 86.03
05-20 91.85
05-21 90.74
05-22 82.18
05-23 83.5
05-24 81.12
05-25 84.14
05-26 87.28
05-27 85.5
05-28 82.23
05-29 84.21
05-30 91.99
05-31 92.22
06-01 90.29
06-02 87.92
06-03 79.14
06-04 75.12
06-05 57.07
06-06 72.61
06-07 70.29
06-08 82.75
06-09 77.23
06-10 70.28
06-11 72.72
06-12 82.29
06-13 81.32
06-14 70.74
06-15 79.79
06-16 77.77
06-17 84.85
06-18 93.49
06-19 97.73
06-20 95.04
06-21 95.52
06-22 87.86
06-23 85.97
06-24 53.52
06-25 54.45
06-26 50.45
06-27 46.42
06-28 45.77
06-29 43.7
06-30 49.81
07-01 45.92
07-02 59.26
07-03 55.79
07-04 64.95
07-05 63.18
07-06 65.17
07-07 59.27
07-08 56.14
07-09 41.62
07-10 71.22
07-11 83.25
07-12 74.23
07-13 70.23
07-14 71.4
07-15 70.09
07-16 69.63
07-17 74.55
07-18 46.43
07-19 40.55
07-20 37.37
07-21 49.46
07-22 52.0
07-23 52.32
07-24 54.51
07-25 49.26
07-26 54.58
07-27 50.37
07-28 38.05
07-29 45.07
07-30 50.16
07-31 43.3
08-01 41.82
08-02 34.63
08-03 30.11
08-04 29.36
08-05 31.6
08-06 29.56
08-07 25.64
08-08 45.74
08-09 58.31
08-10 55.03
08-11 59.78
08-12 49.76
08-13 47.08
08-14 43.46
08-15 36.52
08-16 36.07
08-17 26.91
08-18 25.12
08-19 28.46
08-20 33.17
08-21 32.61
08-22 35.85
08-23 39.67
08-24 43.89
08-25 30.17
08-26 26.35
08-27 29.54
08-28 41.48
08-29 42.17
08-30 42.15
08-31 35.31
09-01 38.67
09-02 80.29
09-03 78.4
09-04 64.23
09-05 57.6
09-06 56.04
09-07 59.45
09-08 49.15
09-09 53.7
09-10 56.4
09-11 55.66
09-12 49.75
09-13 48.19
09-14 49.27
09-15 42.64
09-16 37.15
09-17 29.73
09-18 26.54
09-19 36.5
09-20 37.39
09-21 33.01
09-22 31.03
09-23 31.51
09-24 30.56
09-25 31.6
09-26 33.57
09-27 36.58
09-28 29.66
09-29 33.92
09-30 41.6
10-01 52.77
10-02 44.57
10-03 42.36
10-04 38.67
10-05 53.95
10-06 48.72
10-07 44.98
10-08 46.41
10-09 45.69
10-10 43.12
10-11 36.46
10-12 35.97
10-13 42.8
10-14 47.88
10-15 42.77
10-16 34.84
10-17 54.08
10-18 47.84
10-19 47.48
10-20 53.04
10-21 56.78
10-22 54.92
10-23 56.79
10-24 69.62
10-25 55.31
10-26 57.87
10-27 63.85
10-28 78.59
10-29 68.55
10-30 89.52
10-31 76.6
11-01 101.96
11-02 107.88
11-03 95.99
11-04 96.06
11-05 88.79
11-06 88.43
11-07 81.9
11-08 71.56
11-09 68.75
11-10 72.59
11-11 77.54
11-12 74.53
11-13 86.99
11-14 90.85
11-15 86.35
11-16 91.91
11-17 92.3
11-18 101.33
11-19 97.28
11-20 95.75
11-21 95.03
11-22 96.96
11-23 96.41
11-24 98.78
11-25 106.78
11-26 110.46
11-27 133.11
11-28 142.16
11-29 128.54
11-30 127.01
12-01 145.56
12-02 132.89
12-03 125.66
12-04 126.09
12-05 112.75
12-06 124.61
12-07 122.01
12-08 123.88
12-09 127.03
12-10 149.23
12-11 163.82
12-12 176.39
12-13 163.91
12-14 197.12
12-15 175.22
12-16 167.45
12-17 154.07
12-18 153.46
12-19 154.42
12-20 157.24
12-21 153.3
12-22 157.18
12-23 148.82
12-24 159.97
12-25 169.16
12-26 186.83
12-27 171.28
12-28 158.15
12-29 153.94
12-30 141.75
12-31 154.53

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index