Overview Realtime Historical Map View
Flood Watch
2026-07-22T02:00:00-04:00

* WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...Portions of northern Delaware, including the following area, New Castle, New Jersey, including the following areas, Camden, Eastern Monmouth, Gloucester, Hunterdon, Mercer, Middlesex, Morris, Northwestern Burlington, Somerset and Western Monmouth, and southeast Pennsylvania, including the following areas, Delaware, Eastern Chester, Eastern Montgomery, Lower Bucks, Philadelphia, Upper Bucks, Western Chester and Western Montgomery. * WHEN...From Tuesday morning through late Tuesday night. * 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... - Multiple rounds of heavy showers and thunderstorms are expected beginning Tuesday morning through Tuesday night. Rainfall rates of up to 2 inches per hour will be possible at times. - http://www.weather.gov/safety/flood

West Branch Brandywine Creek Near Honey Brook, Pa 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 55.63
01-02 74.53
01-03 22.49
01-04 29.77
01-05 25.53
01-06 22.85
01-07 31.42
01-08 24.13
01-09 26.38
01-10 214.79
01-11 30.34
01-12 51.75
01-13 39.93
01-14 25.62
01-15 30.68
01-16 22.56
01-17 23.46
01-18 23.83
01-19 26.17
01-20 52.57
01-21 22.16
01-22 19.53
01-23 25.6
01-24 36.93
01-25 30.99
01-26 55.74
01-27 26.17
01-28 23.83
01-29 25.25
01-30 22.35
01-31 38.04
02-01 23.6
02-02 23.53
02-03 23.05
02-04 91.16
02-05 51.46
02-06 48.96
02-07 40.51
02-08 30.78
02-09 22.42
02-10 20.81
02-11 35.82
02-12 33.22
02-13 32.44
02-14 28.76
02-15 25.45
02-16 47.89
02-17 49.81
02-18 25.78
02-19 23.47
02-20 26.36
02-21 25.45
02-22 39.62
02-23 39.63
02-24 41.2
02-25 212.93
02-26 34.31
02-27 29.28
02-28 33.04
02-29 32.63
03-01 58.84
03-02 38.11
03-03 29.53
03-04 31.32
03-05 42.74
03-06 69.43
03-07 27.66
03-08 22.95
03-09 30.46
03-10 108.79
03-11 122.34
03-12 90.64
03-13 92.12
03-14 28.56
03-15 39.99
03-16 30.86
03-17 34.32
03-18 24.2
03-19 23.51
03-20 41.39
03-21 32.25
03-22 51.94
03-23 23.09
03-24 28.55
03-25 51.48
03-26 25.83
03-27 28.63
03-28 24.58
03-29 52.51
03-30 27.54
03-31 52.51
04-01 65.51
04-02 28.91
04-03 29.19
04-04 35.31
04-05 24.58
04-06 21.62
04-07 25.39
04-08 56.49
04-09 22.26
04-10 20.91
04-11 19.09
04-12 25.91
04-13 22.26
04-14 21.24
04-15 23.25
04-16 41.48
04-17 20.11
04-18 17.43
04-19 40.66
04-20 34.25
04-21 18.84
04-22 18.4
04-23 32.92
04-24 18.07
04-25 16.91
04-26 20.4
04-27 22.79
04-28 17.2
04-29 21.08
04-30 19.21
05-01 205.25
05-02 38.34
05-03 21.89
05-04 28.16
05-05 21.81
05-06 27.82
05-07 30.85
05-08 26.48
05-09 25.46
05-10 19.19
05-11 21.04
05-12 19.63
05-13 19.09
05-14 30.94
05-15 19.02
05-16 24.92
05-17 30.0
05-18 20.01
05-19 17.28
05-20 19.51
05-21 16.77
05-22 17.2
05-23 24.31
05-24 19.69
05-25 16.49
05-26 18.76
05-27 19.88
05-28 17.12
05-29 46.19
05-30 22.71
05-31 22.75
06-01 15.36
06-02 18.49
06-03 21.71
06-04 36.16
06-05 19.28
06-06 23.09
06-07 15.82
06-08 35.59
06-09 39.36
06-10 15.38
06-11 70.85
06-12 19.19
06-13 38.81
06-14 19.18
06-15 16.35
06-16 14.1
06-17 17.25
06-18 14.46
06-19 24.01
06-20 29.2
06-21 18.04
06-22 14.99
06-23 16.91
06-24 16.84
06-25 14.47
06-26 15.28
06-27 49.41
06-28 165.72
06-29 15.18
06-30 13.12
07-01 28.86
07-02 85.26
07-03 19.32
07-04 17.01
07-05 14.76
07-06 12.74
07-07 16.74
07-08 18.15
07-09 16.41
07-10 41.34
07-11 15.78
07-12 45.35
07-13 27.44
07-14 12.8
07-15 34.81
07-16 18.7
07-17 12.93
07-18 18.2
07-19 11.87
07-20 12.27
07-21 11.17
07-22 15.38
07-23 59.84
07-24 35.13
07-25 20.1
07-26 14.85
07-27 11.92
07-28 42.74
07-29 19.97
07-30 12.35
07-31 14.59
08-01 13.02
08-02 14.62
08-03 11.91
08-04 13.67
08-05 21.13
08-06 14.91
08-07 11.35
08-08 42.46
08-09 13.08
08-10 13.26
08-11 14.62
08-12 18.24
08-13 14.75
08-14 16.63
08-15 19.48
08-16 11.57
08-17 10.88
08-18 11.69
08-19 16.74
08-20 12.89
08-21 10.72
08-22 53.98
08-23 12.99
08-24 16.81
08-25 11.35
08-26 10.02
08-27 10.07
08-28 20.75
08-29 18.73
08-30 11.61
08-31 10.59
09-01 40.8
09-02 141.78
09-03 19.67
09-04 12.25
09-05 12.19
09-06 13.51
09-07 49.61
09-08 76.72
09-09 20.35
09-10 39.1
09-11 16.65
09-12 24.91
09-13 22.49
09-14 13.29
09-15 12.89
09-16 11.32
09-17 10.7
09-18 18.96
09-19 16.34
09-20 11.05
09-21 10.44
09-22 11.39
09-23 10.49
09-24 182.43
09-25 25.17
09-26 18.08
09-27 39.36
09-28 21.42
09-29 19.17
09-30 18.11
10-01 13.32
10-02 13.88
10-03 23.44
10-04 15.19
10-05 17.55
10-06 13.33
10-07 12.51
10-08 13.22
10-09 12.52
10-10 12.99
10-11 18.88
10-12 45.22
10-13 15.33
10-14 18.05
10-15 25.93
10-16 31.72
10-17 18.76
10-18 13.43
10-19 12.57
10-20 21.13
10-21 15.5
10-22 12.62
10-23 16.53
10-24 12.56
10-25 12.4
10-26 15.72
10-27 15.13
10-28 17.02
10-29 17.19
10-30 192.14
10-31 39.46
11-01 138.46
11-02 19.22
11-03 185.03
11-04 16.44
11-05 12.96
11-06 17.06
11-07 18.68
11-08 15.83
11-09 14.02
11-10 33.32
11-11 15.29
11-12 22.0
11-13 19.47
11-14 17.83
11-15 15.02
11-16 32.76
11-17 30.22
11-18 26.46
11-19 21.67
11-20 17.73
11-21 15.48
11-22 26.54
11-23 55.33
11-24 21.57
11-25 131.13
11-26 18.5
11-27 37.85
11-28 24.34
11-29 16.88
11-30 47.81
12-01 46.55
12-02 26.77
12-03 23.97
12-04 22.95
12-05 20.98
12-06 19.13
12-07 71.36
12-08 108.87
12-09 19.37
12-10 29.69
12-11 54.17
12-12 20.0
12-13 17.83
12-14 18.88
12-15 21.58
12-16 47.73
12-17 39.65
12-18 48.53
12-19 23.15
12-20 19.69
12-21 45.26
12-22 34.12
12-23 42.04
12-24 46.78
12-25 115.89
12-26 24.32
12-27 31.92
12-28 163.56
12-29 29.13
12-30 41.78
12-31 25.33

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index