A front at the surface and its accompanying upper air trough brought heavy downpours and thunderstorms to the islands.  Flash flooding conditions developed on Maui, the Big Island of Hawaii, and Kauai as the system slowly made its way through the Aloha State. High winds and blizzard conditions also occurred at the summits of Mauna Kea and Mauna Loa on the Big Island of Hawaii.  There were no reports of significant injuries or property damage, though more than 60 hikers had to be evacuated from Kalalau Valley on the north side of Kauai on December 24th after multiple streams became impassable because of several days of moderate to heavy rain.

Heavy Rain in KAUAI, HAWAII
From 22-DEC-14 19:29:00 to 23-DEC-14 00:28:00 (HST-10)
Location: KOKEE STATE PARK
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Flash Flood in MAUI, HAWAII
From 22-DEC-14 20:16:00 to 23-DEC-14 04:34:00 (HST-10)
Location: KOKOMO
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Kahului Police reported flooding around Maliko Gulch and Makawao Avenue.

Heavy Rain in MAUI, HAWAII
From 22-DEC-14 22:49:00 to 23-DEC-14 04:03:00 (HST-10)
Location: HALAWA VALLEY
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Flash Flood in HAWAII, HAWAII
From 23-DEC-14 05:30:00 to 23-DEC-14 08:43:00 (HST-10)
Location: HALAULA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Akoni Pule Highway, Highway 270, closed at mile marker 27 because of high water.

Heavy Rain in MAUI, HAWAII
From 23-DEC-14 06:18:00 to 23-DEC-14 09:14:00 (HST-10)
Location: PUKALANI
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Heavy Rain in MAUI, HAWAII
From 23-DEC-14 14:48:00 to 23-DEC-14 16:01:00 (HST-10)
Location: HONOKAHUA
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Flash Flood in KAUAI, HAWAII
From 23-DEC-14 18:30:00 to 23-DEC-14 21:44:00 (HST-10)
Location: PRINCEVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Kuhio Highway was closed at the Hanalei Bridge due to high water.

Flash Flood in MAUI, HAWAII
From 23-DEC-14 20:00:00 to 23-DEC-14 21:13:00 (HST-10)
Location: KAUNAKAKAI
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Maunaloa Highway was closed at the Kaunakakai Gulch due to high water on the island of Molokai.

Heavy Rain in KAUAI, HAWAII
From 23-DEC-14 21:49:00 to 24-DEC-14 03:40:00 (HST-10)
Location: KAANA
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Heavy Rain in HONOLULU, HAWAII
From 23-DEC-14 23:22:00 to 24-DEC-14 03:13:00 (HST-10)
Location: MOKULEIA
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Heavy Rain in KAUAI, HAWAII
From 21-DEC-14 21:23:00 to 22-DEC-14 05:58:00 (HST-10)
Location: KAPALUA HEIAU
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Heavy Rain in HONOLULU, HAWAII
From 22-DEC-14 04:23:00 to 22-DEC-14 13:20:00 (HST-10)
Location: WAIKANE
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Heavy Rain in HONOLULU, HAWAII
From 24-DEC-14 18:55:00 to 24-DEC-14 20:01:00 (HST-10)
Location: MILILANI TOWN
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Blizzard in BIG ISLAND SUMMIT, HAWAII
From 23-DEC-14 02:00:00 to 23-DEC-14 15:00:00 (HST-10)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Park/Forest Service

Rangers at the Mauna Kea summit reported significant snowfall and blowing snow greatly reducing visibility.

High Wind in BIG ISLAND SUMMIT, HAWAII
From 23-DEC-14 03:30:00 to 26-DEC-14 05:00:00 (HST-10)
Magnitude: 70.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Park/Forest Service

Mauna Kea Summit road was closed due to wind gusts to 80 mph.

Heavy Rain in MAUI, HAWAII
From 22-DEC-14 12:32:00 to 22-DEC-14 15:20:00 (HST-10)
Location: CAPE HALAWA
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations