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Storm Events Database
Event Details:
| Event | Flash Flood |
| -- Flood Cause | Heavy Rain / Tropical System |
| State | HAWAII |
| County/Area | HAWAII |
| WFO | HFO |
| Report Source | Emergency Manager |
| NCEI Data Source | CSV |
| Begin Date | 2018-08-22 21:35 HST-10 |
| Begin Location | 3S KUKUIHAELE |
| End Date | 2018-08-25 22:27 HST-10 |
| End Location | 2NNE NAALEHU |
| Deaths Direct/Indirect | 0/0 (fatality details below, when available...) |
| Injuries Direct/Indirect | 0/0 |
| Property Damage | 7.10M |
| Crop Damage | 0.00K |
| Episode Narrative | With Hurricane Lane just west of the Big Island of Hawaii, and south of Maui County and Oahu, torrential rain fell over parts of the state, especially the Big Island. Flash flooding was the most serious weather problem, with parts of the Big Island seeing total rainfall of 40 to 50 inches. (One site, the Kahuna Falls Cooperative Observer Program station, reported 56 inches.) Strong winds also downed trees and power lines, leading to power outages on most isles. The total cost of damages has not yet been assessed, though at least $20 million in damages occurred to public infrastructure on the Big Island. There were no reports of serious injuries. |
| Event Narrative | Flash flooding continued for about two full days for much of the east half of the Big Island of Hawaii. From near Hawi in the north to the Kawa Flats area in the south, almost continuous heavy rain and thunderstorms associated with Hurricane Lane affected the isle. Flooding waters closed Bayfront Highway in Hilo, Highway 19 in multiple areas was closed due to debris flows and deep water on the roadway, flash flooding was ongoing in Waipio Valley for much of the time, Akoni Pule Highway became impassable near Hawi, Kaalaiki Road northeast of Naalehu was closed because of deep ponding, water rescues and evacuations were undetaken in the Hilo area at Kaiulani Street with water levels running at 5 feet, a resident in Keaau had to evacuate the home because of flooding on N. Wilder Road, a portion of Saddle Road upslope from Hilo was closed because of a debris flow and large rocks on the roadway, route 130 was closed from Keaau High School to Hawaiian Paradise Park due to flooding, and both lanes of Highway 11 in the Kawa Flats area were closed because of deep water over the roadway. |
All events for this episode:
| Location | County/Zone | St. | Date | Time | T.Z. | Type | Mag | Dth | Inj | PrD | CrD |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Totals: | 0 | 0 | 7.100M | 0.00K | |||||||
| WAILUKU | MAUI CO. | HI | 08/22/2018 | 17:31 | HST-10 | Heavy Rain | 0 | 0 | 0.00K | 0.00K | |
| KUKUIHAELE | HAWAII CO. | HI | 08/22/2018 | 21:35 | HST-10 | Flash Flood | 0 | 0 | 7.100M | 0.00K | |
| WAIANAPANAPA SP | MAUI CO. | HI | 08/23/2018 | 11:30 | HST-10 | Flash Flood | 0 | 0 | 0.00K | 0.00K | |
| WINDWARD HALEAKALA (ZONE) | WINDWARD HALEAKALA (ZONE) | HI | 08/23/2018 | 22:00 | HST-10 | Hurricane | 0 | 0 | 0.00K | 0.00K | |
| WAIANAE COAST (ZONE) | WAIANAE COAST (ZONE) | HI | 08/23/2018 | 22:00 | HST-10 | Hurricane | 0 | 0 | 0.00K | 0.00K | |
| LEEWARD HALEAKALA (ZONE) | LEEWARD HALEAKALA (ZONE) | HI | 08/23/2018 | 22:21 | HST-10 | Hurricane | 0 | 0 | 0.00K | 0.00K | |
| OAHU SOUTH SHORE (ZONE) | OAHU SOUTH SHORE (ZONE) | HI | 08/23/2018 | 22:40 | HST-10 | Hurricane | 0 | 0 | 0.00K | 0.00K | |
| OAHU KOOLAU (ZONE) | OAHU KOOLAU (ZONE) | HI | 08/24/2018 | 05:26 | HST-10 | Hurricane | 0 | 0 | 0.00K | 0.00K | |
| OAHU SOUTH SHORE (ZONE) | OAHU SOUTH SHORE (ZONE) | HI | 08/24/2018 | 09:00 | HST-10 | Hurricane | 0 | 0 | 0.00K | 0.00K | |
| OAHU KOOLAU (ZONE) | OAHU KOOLAU (ZONE) | HI | 08/24/2018 | 09:00 | HST-10 | Hurricane | 0 | 0 | 0.00K | 0.00K | |
| WAIANAE COAST (ZONE) | WAIANAE COAST (ZONE) | HI | 08/24/2018 | 09:00 | HST-10 | Hurricane | 0 | 0 | 0.00K | 0.00K | |
| OAHU SOUTH SHORE (ZONE) | OAHU SOUTH SHORE (ZONE) | HI | 08/24/2018 | 09:00 | HST-10 | Hurricane | 0 | 0 | 0.00K | 0.00K | |
| OAHU KOOLAU (ZONE) | OAHU KOOLAU (ZONE) | HI | 08/24/2018 | 10:10 | HST-10 | Hurricane | 0 | 0 | 0.00K | 0.00K | |
| WINDWARD HALEAKALA (ZONE) | WINDWARD HALEAKALA (ZONE) | HI | 08/24/2018 | 14:00 | HST-10 | Hurricane | 0 | 0 | 0.00K | 0.00K | |
| OAHU SOUTH SHORE (ZONE) | OAHU SOUTH SHORE (ZONE) | HI | 08/24/2018 | 15:40 | HST-10 | Coastal Flood | 0 | 0 | 0.00K | 0.00K | |
| OAHU SOUTH SHORE (ZONE) | OAHU SOUTH SHORE (ZONE) | HI | 08/24/2018 | 16:30 | HST-10 | Hurricane | 0 | 0 | 0.00K | 0.00K | |
| HAIKU | MAUI CO. | HI | 08/24/2018 | 20:20 | HST-10 | Flash Flood | 0 | 0 | 0.00K | 0.00K | |
| SHIPWRECK BEACH | MAUI CO. | HI | 08/24/2018 | 21:04 | HST-10 | Heavy Rain | 0 | 0 | 0.00K | 0.00K | |
| PAPOHAKU BEACH PARK | MAUI CO. | HI | 08/24/2018 | 21:07 | HST-10 | Heavy Rain | 0 | 0 | 0.00K | 0.00K | |
| HONOKAHUA | MAUI CO. | HI | 08/25/2018 | 14:55 | HST-10 | Heavy Rain | 0 | 0 | 0.00K | 0.00K | |
| PUUKOLII | MAUI CO. | HI | 08/25/2018 | 19:48 | HST-10 | Heavy Rain | 0 | 0 | 0.00K | 0.00K | |
| HAWI | HAWAII CO. | HI | 08/25/2018 | 20:11 | HST-10 | Heavy Rain | 0 | 0 | 0.00K | 0.00K | |
| OOKALA | HAWAII CO. | HI | 08/25/2018 | 22:24 | HST-10 | Heavy Rain | 0 | 0 | 0.00K | 0.00K | |
| KAHUKU | HONOLULU CO. | HI | 08/26/2018 | 05:07 | HST-10 | Heavy Rain | 0 | 0 | 0.00K | 0.00K | |
| PUUANAHULU | HAWAII CO. | HI | 08/26/2018 | 15:18 | HST-10 | Heavy Rain | 0 | 0 | 0.00K | 0.00K | |
| Totals: | 0 | 0 | 7.100M | 0.00K |
