Overview Realtime Historical Map View
Flood Watch
2026-09-13T12:00:00-04:00

* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of northern Delaware, including the following area, New Castle, New Jersey, including the following areas, Camden, Coastal Ocean, Eastern Monmouth, Gloucester, Hunterdon, Mercer, Middlesex, Morris, Northwestern Burlington, Ocean, Salem, Somerset, Southeastern Burlington and Western Monmouth, and southeast Pennsylvania, including the following areas, Delaware, Eastern Montgomery, Lower Bucks, Philadelphia, Upper Bucks and Western Montgomery. * WHEN...Until noon EDT today. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - Showers and storms will continue to move through the region through the morning hours. Heavy rain in a short amount of time could result in excessive runoff. - http://www.weather.gov/safety/flood

Blackbird Creek At Blackbird, De 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 6.46
01-02 7.96
01-03 4.75
01-04 4.96
01-05 11.37
01-06 5.34
01-07 8.31
01-08 5.7
01-09 4.71
01-10 14.8
01-11 8.16
01-12 7.65
01-13 8.86
01-14 6.75
01-15 5.61
01-16 6.64
01-17 8.14
01-18 5.87
01-19 11.5
01-20 6.25
01-21 5.87
01-22 4.64
01-23 4.34
01-24 5.51
01-25 10.76
01-26 10.24
01-27 6.8
01-28 6.6
01-29 6.98
01-30 5.63
01-31 4.94
02-01 5.11
02-02 5.32
02-03 5.76
02-04 8.68
02-05 7.4
02-06 8.42
02-07 5.94
02-08 6.54
02-09 5.25
02-10 4.89
02-11 6.59
02-12 16.15
02-13 9.19
02-14 9.5
02-15 7.38
02-16 7.08
02-17 9.25
02-18 7.94
02-19 7.38
02-20 7.05
02-21 8.37
02-22 7.43
02-23 8.04
02-24 7.38
02-25 11.89
02-26 6.84
02-27 6.43
02-28 6.75
02-29 6.96
03-01 10.01
03-02 9.18
03-03 9.94
03-04 12.31
03-05 9.97
03-06 7.59
03-07 11.21
03-08 8.38
03-09 7.64
03-10 9.1
03-11 8.97
03-12 6.9
03-13 7.61
03-14 6.29
03-15 8.67
03-16 6.01
03-17 5.43
03-18 5.49
03-19 6.73
03-20 6.26
03-21 6.54
03-22 11.34
03-23 7.04
03-24 9.53
03-25 9.79
03-26 7.05
03-27 5.68
03-28 6.34
03-29 7.1
03-30 9.58
03-31 7.57
04-01 8.92
04-02 8.81
04-03 7.93
04-04 12.28
04-05 6.17
04-06 5.93
04-07 7.51
04-08 8.93
04-09 5.5
04-10 4.95
04-11 4.82
04-12 10.31
04-13 7.1
04-14 6.81
04-15 4.55
04-16 7.14
04-17 6.75
04-18 4.68
04-19 6.72
04-20 4.88
04-21 6.23
04-22 4.62
04-23 7.96
04-24 5.56
04-25 5.52
04-26 5.83
04-27 5.29
04-28 4.31
04-29 9.58
04-30 5.95
05-01 19.14
05-02 6.29
05-03 4.76
05-04 4.31
05-05 4.41
05-06 5.74
05-07 5.8
05-08 6.41
05-09 4.28
05-10 3.82
05-11 3.58
05-12 3.77
05-13 5.39
05-14 5.42
05-15 4.08
05-16 6.11
05-17 7.71
05-18 4.45
05-19 5.03
05-20 6.02
05-21 4.31
05-22 4.11
05-23 4.76
05-24 5.17
05-25 3.84
05-26 3.83
05-27 3.73
05-28 3.88
05-29 5.99
05-30 4.94
05-31 9.23
06-01 4.3
06-02 6.83
06-03 4.28
06-04 3.42
06-05 2.8
06-06 3.07
06-07 2.35
06-08 5.99
06-09 2.69
06-10 3.51
06-11 5.03
06-12 5.25
06-13 3.18
06-14 4.57
06-15 3.97
06-16 2.46
06-17 2.34
06-18 1.93
06-19 5.22
06-20 2.5
06-21 8.3
06-22 4.05
06-23 2.64
06-24 3.8
06-25 2.08
06-26 2.07
06-27 1.84
06-28 5.18
06-29 2.33
06-30 1.72
07-01 1.53
07-02 3.81
07-03 3.28
07-04 2.4
07-05 1.88
07-06 2.21
07-07 21.92
07-08 2.63
07-09 1.99
07-10 3.76
07-11 6.2
07-12 2.79
07-13 5.26
07-14 3.82
07-15 2.34
07-16 1.79
07-17 1.53
07-18 1.36
07-19 1.33
07-20 1.28
07-21 1.27
07-22 5.24
07-23 2.65
07-24 2.19
07-25 5.22
07-26 3.3
07-27 1.44
07-28 5.26
07-29 13.39
07-30 4.8
07-31 1.95
08-01 1.68
08-02 9.8
08-03 2.27
08-04 2.58
08-05 7.8
08-06 2.4
08-07 4.2
08-08 8.33
08-09 2.57
08-10 1.8
08-11 1.56
08-12 2.88
08-13 3.95
08-14 5.58
08-15 2.19
08-16 3.05
08-17 3.28
08-18 2.11
08-19 1.75
08-20 8.31
08-21 2.55
08-22 4.62
08-23 2.59
08-24 2.12
08-25 1.57
08-26 4.15
08-27 1.65
08-28 42.45
08-29 6.9
08-30 3.75
08-31 2.48
09-01 2.12
09-02 2.47
09-03 3.8
09-04 2.13
09-05 1.71
09-06 1.45
09-07 3.9
09-08 2.23
09-09 2.59
09-10 6.38
09-11 15.58
09-12 3.09
09-13 4.67
09-14 2.93
09-15 1.77
09-16 1.56
09-17 1.56
09-18 1.85
09-19 2.39
09-20 1.63
09-21 1.47
09-22 1.65
09-23 1.46
09-24 7.54
09-25 3.48
09-26 2.49
09-27 3.63
09-28 2.42
09-29 3.34
09-30 4.6
10-01 4.29
10-02 1.87
10-03 3.46
10-04 2.4
10-05 2.06
10-06 1.53
10-07 1.41
10-08 1.57
10-09 1.77
10-10 3.13
10-11 2.19
10-12 6.69
10-13 3.71
10-14 2.21
10-15 1.96
10-16 1.79
10-17 3.23
10-18 1.81
10-19 1.47
10-20 2.02
10-21 2.21
10-22 1.58
10-23 2.86
10-24 1.89
10-25 1.55
10-26 1.7
10-27 2.54
10-28 3.64
10-29 2.68
10-30 29.82
10-31 6.71
11-01 3.35
11-02 3.91
11-03 2.86
11-04 2.5
11-05 1.96
11-06 7.4
11-07 4.49
11-08 3.5
11-09 2.66
11-10 4.2
11-11 3.62
11-12 16.68
11-13 5.45
11-14 4.71
11-15 3.07
11-16 5.78
11-17 4.96
11-18 3.94
11-19 3.11
11-20 3.01
11-21 2.75
11-22 5.28
11-23 5.77
11-24 4.28
11-25 10.45
11-26 4.14
11-27 6.22
11-28 4.98
11-29 3.37
11-30 5.38
12-01 7.33
12-02 4.51
12-03 4.36
12-04 3.82
12-05 3.37
12-06 4.7
12-07 5.53
12-08 14.0
12-09 5.28
12-10 5.96
12-11 7.52
12-12 5.39
12-13 3.85
12-14 3.75
12-15 6.28
12-16 11.27
12-17 12.67
12-18 11.83
12-19 7.56
12-20 5.9
12-21 6.11
12-22 7.24
12-23 6.27
12-24 7.3
12-25 19.69
12-26 18.73
12-27 9.0
12-28 9.42
12-29 17.57
12-30 8.61
12-31 6.11

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index