Overview Realtime Historical Map View
Flood Advisory
2026-08-15T16:45:00-10:00

* WHAT...Flooding caused by excessive rainfall is expected. * WHERE...The island of Molokai in Maui County... * WHEN...Until 445 PM HST. * IMPACTS...Minor flooding on roads, poor drainage areas, and in streams. * ADDITIONAL DETAILS... - At 140 PM HST, Doppler radar and automated rain gauges indicated areas of heavy rain moving into the eastern half of Molokai. Water levels are rising within Kawela Gulch and rain was falling at a rate of 0.5 to 1.5 inches per hour. Minor flooding is ongoing or expected to begin shortly in the advisory area, which may impact portions of Kamehameha V Highway near Kawela Gulch. - Some locations that will experience flooding include... Ualapue, Kamalo, Pukoo, Kalaupapa National Park, Kawela, Halawa Valley, Kaunakakai and Kualapuu.

Halawa Stream Near Halawa, Molokai, Hi 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 29.41
01-02 74.17
01-03 74.89
01-04 39.58
01-05 43.1
01-06 29.84
01-07 13.2
01-08 10.02
01-09 42.71
01-10 14.38
01-11 10.4
01-12 16.03
01-13 9.88
01-14 6.86
01-15 22.37
01-16 9.83
01-17 20.1
01-18 14.65
01-19 33.99
01-20 11.71
01-21 10.29
01-22 11.04
01-23 11.36
01-24 34.74
01-25 30.77
01-26 92.51
01-27 27.18
01-28 37.97
01-29 77.01
01-30 57.23
01-31 40.63
02-01 50.94
02-02 36.71
02-03 37.0
02-04 33.94
02-05 18.41
02-06 39.58
02-07 34.83
02-08 64.08
02-09 47.85
02-10 48.99
02-11 28.72
02-12 24.13
02-13 17.51
02-14 115.69
02-15 31.37
02-16 41.81
02-17 20.1
02-18 33.4
02-19 43.84
02-20 54.53
02-21 18.76
02-22 56.08
02-23 21.13
02-24 27.98
02-25 21.0
02-26 87.3
02-27 18.47
02-28 14.34
02-29 70.95
03-01 37.38
03-02 19.75
03-03 104.1
03-04 59.88
03-05 27.32
03-06 46.96
03-07 56.25
03-08 169.87
03-09 100.99
03-10 35.42
03-11 20.7
03-12 39.69
03-13 83.45
03-14 196.26
03-15 47.79
03-16 74.74
03-17 21.06
03-18 22.55
03-19 46.56
03-20 37.6
03-21 135.76
03-22 75.94
03-23 18.12
03-24 65.78
03-25 14.6
03-26 28.03
03-27 37.71
03-28 48.52
03-29 25.75
03-30 40.25
03-31 17.81
04-01 9.91
04-02 10.49
04-03 10.64
04-04 8.11
04-05 10.02
04-06 8.04
04-07 15.03
04-08 49.61
04-09 17.9
04-10 10.85
04-11 72.0
04-12 15.47
04-13 56.61
04-14 24.93
04-15 12.32
04-16 15.92
04-17 11.07
04-18 16.1
04-19 14.27
04-20 18.51
04-21 47.06
04-22 14.51
04-23 21.81
04-24 17.42
04-25 8.34
04-26 22.76
04-27 74.97
04-28 74.21
04-29 29.46
04-30 23.29
05-01 25.29
05-02 13.51
05-03 42.4
05-04 19.69
05-05 28.51
05-06 15.47
05-07 14.88
05-08 58.21
05-09 23.09
05-10 51.54
05-11 75.42
05-12 56.25
05-13 43.94
05-14 19.19
05-15 27.64
05-16 17.94
05-17 41.0
05-18 20.55
05-19 22.51
05-20 33.93
05-21 11.99
05-22 10.8
05-23 67.88
05-24 17.1
05-25 18.68
05-26 15.84
05-27 10.86
05-28 15.21
05-29 18.94
05-30 9.88
05-31 58.67
06-01 23.55
06-02 21.96
06-03 12.33
06-04 43.23
06-05 16.85
06-06 26.78
06-07 13.36
06-08 21.89
06-09 17.89
06-10 14.53
06-11 15.61
06-12 17.48
06-13 25.67
06-14 12.42
06-15 22.16
06-16 11.21
06-17 17.03
06-18 22.57
06-19 16.27
06-20 18.56
06-21 18.31
06-22 49.71
06-23 11.43
06-24 20.74
06-25 14.24
06-26 51.26
06-27 17.17
06-28 23.66
06-29 28.26
06-30 8.64
07-01 8.57
07-02 9.97
07-03 11.66
07-04 13.1
07-05 9.11
07-06 25.22
07-07 14.17
07-08 12.09
07-09 8.48
07-10 53.62
07-11 19.45
07-12 17.13
07-13 23.07
07-14 19.92
07-15 21.6
07-16 47.02
07-17 25.94
07-18 26.85
07-19 34.62
07-20 47.12
07-21 29.27
07-22 29.19
07-23 36.6
07-24 75.49
07-25 18.69
07-26 11.87
07-27 39.24
07-28 32.52
07-29 72.87
07-30 44.06
07-31 31.17
08-01 31.48
08-02 13.82
08-03 15.8
08-04 9.86
08-05 9.15
08-06 26.05
08-07 13.54
08-08 9.72
08-09 29.4
08-10 158.22
08-11 14.41
08-12 14.09
08-13 12.92
08-14 13.73
08-15 39.93
08-16 22.03
08-17 8.99
08-18 11.89
08-19 11.01
08-20 9.5
08-21 18.56
08-22 212.58
08-23 15.79
08-24 13.1
08-25 10.3
08-26 10.03
08-27 12.32
08-28 73.68
08-29 18.56
08-30 12.37
08-31 20.19
09-01 11.4
09-02 9.0
09-03 49.66
09-04 9.77
09-05 10.01
09-06 15.46
09-07 14.43
09-08 18.68
09-09 19.73
09-10 19.28
09-11 12.83
09-12 32.41
09-13 30.98
09-14 47.07
09-15 42.59
09-16 22.38
09-17 11.09
09-18 22.96
09-19 15.33
09-20 15.98
09-21 12.55
09-22 25.1
09-23 22.04
09-24 15.88
09-25 9.32
09-26 19.14
09-27 60.09
09-28 40.34
09-29 15.25
09-30 23.71
10-01 22.11
10-02 11.08
10-03 9.39
10-04 29.56
10-05 148.88
10-06 44.2
10-07 13.1
10-08 13.69
10-09 8.2
10-10 10.72
10-11 12.14
10-12 23.56
10-13 30.1
10-14 18.03
10-15 62.61
10-16 27.94
10-17 27.5
10-18 21.58
10-19 283.6
10-20 17.73
10-21 18.43
10-22 16.76
10-23 14.88
10-24 110.2
10-25 21.56
10-26 20.36
10-27 11.79
10-28 17.54
10-29 24.61
10-30 38.93
10-31 42.45
11-01 43.22
11-02 14.31
11-03 11.48
11-04 13.8
11-05 13.3
11-06 10.84
11-07 9.88
11-08 32.75
11-09 72.21
11-10 35.08
11-11 30.9
11-12 23.98
11-13 24.99
11-14 21.67
11-15 72.35
11-16 9.16
11-17 14.53
11-18 16.54
11-19 15.7
11-20 22.46
11-21 36.53
11-22 52.03
11-23 20.72
11-24 35.23
11-25 69.94
11-26 12.27
11-27 17.16
11-28 9.37
11-29 9.39
11-30 35.09
12-01 9.44
12-02 15.1
12-03 25.37
12-04 27.68
12-05 10.77
12-06 12.9
12-07 11.17
12-08 10.87
12-09 12.64
12-10 9.27
12-11 35.75
12-12 42.91
12-13 23.52
12-14 49.88
12-15 18.16
12-16 21.29
12-17 64.63
12-18 26.27
12-19 85.62
12-20 20.73
12-21 26.71
12-22 21.44
12-23 69.72
12-24 34.86
12-25 39.15
12-26 31.25
12-27 16.78
12-28 11.45
12-29 33.2
12-30 32.64
12-31 77.79

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index