March 2026 Severe Weather and Flash Flooding - 3/10 to 3/24

Back to back low pressure systems and upper level disturbances combined with deep tropical moisture across the islands brought an extended period of widespread heavy rain, strong thunderstorms, and a period of very damaging winds to the State of Hawaii, starting March 10, 2026. Moderate to heavy rain occurred almost everyday somewhere in the state through March 24, 2026.

Additional details are included in the following summaries:

The following are preliminary rainfall totals from Tuesday, March 10th through Tuesday, March 24th.

Island of Kauai                 Inches
Mount Waialeale (USGS)           25.98
N Wailua Ditch (USGS)            24.04
Waiahi Rain Gage (USGS)          18.72
Hanamaulu (UHM)                  16.36
Waialae (USGS)                   16.20
Mohihi Crossing (USGS)           15.50
Kalaheo (12008)                  14.98
Omao (12004)                     14.83
Kilohana (USGS)                  14.55
Lawai NTBG (UHM)                 14.50
Waiakoali (USGS)                 14.50
Wailua (12005)                   14.29
Poipu (HSOIS)                    13.85
Lihue Airport (ASOS)             13.59
Lihue Var. Stn. (12006)          12.93
Puu Lua (RAWS)                   11.82
Puu Opae (RAWS)                  11.64
Hanapepe (12002)                 11.14

Island of Oahu                  Inches
Kaala (UHM)                      52.15
Maunawili (13008)                40.43
St. Stephens (13006)             39.18
Schofield Barracks (RAWS)        36.10
Moanalua RG (USGS)               35.11
Luluku (13016)                   34.08
Schofield East (RAWS)            32.93
Kalawahine (UHM)                 32.24
Tunnel RG (USGS)                 32.07
Manoa Lyon Arboretum (3050)      31.54
Kahana (USGS)                    30.35
Heeia NERR (NOAA/NOS)            30.19
Lyon (UHM)                       30.05
Hakipuu Mauka (13004)            29.82
Punaluu Stream (USGS)            29.74
Olomana Fire Station (13009)     28.18
Waianae Valley (RAWS)            26.84
Kamananui Stream (USGS)          26.49
Pupukea Road (USGS)              25.75
Palehua (RAWS)                   25.70
Dillingham (RAWS)                24.00
Nuuanu Res No. 1 (UHM)           22.99
Kuaokala (RAWS)                  22.72
Bellows AFS (HSOIS)              22.27
Kaluanui (UHM)                   22.24
Moanalua (13003)                 21.83
Niu Valley (13001)               21.68
Oahu Forest NWR (USFWS)          21.11
Kalahee Ridge (UHM)              20.84
Waiahole (USGS)                  20.10
Hawaii Kai Golf Crse (13015)     18.27
Kii (RAWS)                       15.73
Waianae (13014)                  15.44
Poamoho RG 1 (USGS)              14.92
Waianae Boat Harbor (HSOIS)      13.86
Waihee Pump (13002)              13.61
Honouliuli (RAWS)                13.50
Kahuku Training Area (RAWS)      12.21

Island of Molokai               Inches
Honolimaloo (UHM)                41.58
Puu Alii (RAWS)                  37.94
Makapulapai (RAWS)               24.22
Kamalo (14013)                   23.22
Molokai Airport (ASOS)           20.74
Kaunakakai Mauka (14004)         19.87

Island of Lanai                 Inches
Lanai City (14012)               28.57
Lanai 1 (RAWS)                   17.08
Lanai Airport (ASOS)             15.20

Island of Maui                  Inches
Summit (UHM)                     54.92
Puu Kukui (USGS)                 53.10
Kula 1 (RAWS)                    51.36
Hanaula (UHM)                    45.34
Wailuku (14007)                  32.51
Lahaina WTP (UHM)                29.49
Waikamoi Treeline (UHM)          28.92
Park HQ (UHM)                    27.74
Keokea (UHM)                     25.82
Kahakuloa (14002)                25.51
Lahainaluna (14011)              25.27
Waikapu Country Club (14005)     25.01
Na Kula                          24.61
Ulupalakua (14003)               24.58
West Wailuaiki (USGS)            23.83
Olowalu (UHM)                    23.63
Honolua (UHM)                    23.51
Kepuni (USGS)                    21.41
Kahului Airport (ASOS)           20.60
Hana Airport (HSOIS)             20.34
Lipoa (UHM)                      19.72
Piiholo (UHM)                    19.56
Kealia Pond (USFWS)              19.20
Kula Branch Station (14008)      18.06
Haiku (14001)                    15.46
EMI Baseyard (UHM)               13.85
Pukalani (14006)                 12.88

Island of Hawaii                Inches
Puu Waawaa (UHM)                 42.20
Nahuku (UHM)                     40.94
Pali 2 (RAWS)                    34.19
Keaumo (RAWS)                    32.31
Kapapala (RAWS)                  32.14
Pahala (15004)                   32.14
Kapapala Ranch (15003)           30.22
Kaiholena (UHM)                  29.35
Kahuku Ranch (RAWS)              27.47
Kehena (UHM)                     24.46
Kawainui Stream (USGS)           23.35
Kona Hema (UHM)                  22.14
Pahoa (UHM)                      22.06
Glenwood (15013)                 21.34
Pahoa (15015)                    18.82
Honaunau (15007)                 17.65
Kealakekua (15008)               17.21
Keahuolu (UHM)                   16.66
Mountain View (15014)            16.65
Waiaha Stream (15009)            16.06
Kamuela Upper (15002)            15.64
Laupahoehoe (UHM)                15.08
Kahua Ranch (15006)              14.16
Kaluamakani (UHM)                14.10
Honolii Stream (USGS)            13.48
Piihonua (UHM)                   13.45
Lalamilo (UHM)                   13.29
Mauna Loa Ob Stn (NOAA/CRN)      13.06
Waikii (15011)                   13.05
Palamanui (UHM)                  12.73
Honokaa (15010)                  12.54
Puuloa (UHM)                     12.08
Ahumoa (RAWS)                    11.90
Pohakuloa Kipuka Alala RAWS      11.33
IPIF (UHM)                       11.22
Kaupulehu (RAWS)                 10.89
Waipunalei (UHM)                 10.89
Pohakuloa Keamuku (RAWS)         10.81
Puu Mali (RAWS)                  10.69
Kaloko-Honokohau (RAWS)          10.40
Hilo Airport (ASOS)              10.33
Upolu Airport (HSOIS)            10.18