A cold front and an upper-level low combined to generate severe weather across much of the Aloha State.  Significant weather included thunderstorms, flash flooding, record-setting hail, and a tornado.  Although the total cost of damages was not available for the entire state, preliminary numbers include $2 million in infrastructure damage on Kauai and $3.2 million in Maui.  There were no reports of fatalities or serious injuries.

Flash Flood in KAUAI, HAWAII
From 09-MAR-12 02:58:00 to 09-MAR-12 22:56:00 (HST-10)
Location: KALIHIWAI
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A debris flow along Kuhio Highway south of the Kalihiwai Bridge closed both lanes of traffic.

Flash Flood in KAUAI, HAWAII
From 09-MAR-12 03:09:00 to 09-MAR-12 22:56:00 (HST-10)
Location: HANAMAULU
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A debris flow along Kuhio Highway near mile marker 1.5 closed on lane of traffic on Kauai.

Flash Flood in KAUAI, HAWAII
From 09-MAR-12 03:50:00 to 09-MAR-12 22:56:00 (HST-10)
Location: ANAHOLA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Flooding waters closed Kuhio Highway near mile marker 13 on the island of Kauai.

Flash Flood in HONOLULU, HAWAII
From 09-MAR-12 03:00:00 to 09-MAR-12 12:41:00 (HST-10)
Location: KALIHI
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A large tree branch fell and hit power lines on Kalihi Street in Honolulu.  Hawaiian Electric reported about 30 customers were without power.

Flash Flood in MAUI, HAWAII
From 09-MAR-12 03:30:00 to 09-MAR-12 11:24:00 (HST-10)
Location: HANA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

The Hana Hotel on Maui reported rising stream waters entered the building, washed over the road, and washed mud into surrounding areas and the swimming pool.

Hail in HAWAII, HAWAII
From 08-MAR-12 17:25:00 to 08-MAR-12 17:40:00 (HST-10)
Location: KAMUELA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A resident on the Big Island of Hawaii reported hail near 1 in size along Mana Road in Kamuela.

Hail in KAUAI, HAWAII
From 09-MAR-12 01:40:00 to 09-MAR-12 01:55:00 (HST-10)
Location: KAPAA
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Dime size hail broke a jalousie window in a house along Kawaihau Road in Kapaa on Kauai.

Hail in HONOLULU, HAWAII
From 09-MAR-12 05:45:00 to 09-MAR-12 06:00:00 (HST-10)
Location: KANEOHE STATION
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

One inch hail was observed at Kaneohe Marine Base Hawaii.

Hail in HONOLULU, HAWAII
From 09-MAR-12 05:50:00 to 09-MAR-12 06:05:00 (HST-10)
Location: KANEOHE
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Individual reported hail of between 1.5 to 2 inches in size in Kaneohe on Oahu.

Hail in HONOLULU, HAWAII
From 09-MAR-12 05:55:00 to 09-MAR-12 06:10:00 (HST-10)
Location: KANEOHE STATION
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail about 1.75 inches in size observed by a resident near Aikahi Park in Kailua on Oahu.

Flash Flood in HONOLULU, HAWAII
From 09-MAR-12 05:55:00 to 09-MAR-12 12:41:00 (HST-10)
Location: WAIKANE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Honolulu Police reported three feet of water over Kamehameha Highway near Waikane on Oahu.

Hail in HONOLULU, HAWAII
From 09-MAR-12 06:16:00 to 09-MAR-12 06:30:00 (HST-10)
Location: KAILUA
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A resident of Kailua reported 2-inch hail.

Flash Flood in HONOLULU, HAWAII
From 09-MAR-12 07:09:00 to 09-MAR-12 12:41:00 (HST-10)
Location: KAHUKU
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Flooding waters were several feet deep in yards and on roads in Laie on Oahu.

Flash Flood in KAUAI, HAWAII
From 09-MAR-12 08:49:00 to 09-MAR-12 22:56:00 (HST-10)
Location: KALIHIWAI
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Water from heavy downpours closed Kalihiwai Road West leading to Kalihiwai Beach on Kauai.

Flash Flood in HONOLULU, HAWAII
From 09-MAR-12 07:45:00 to 09-MAR-12 12:41:00 (HST-10)
Location: KAILUA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Water was reported overflowing along a portion of Mikiola Drive in Kaneohe on Oahu.

Hail in MAUI, HAWAII
From 09-MAR-12 02:00:00 to 09-MAR-12 02:15:00 (HST-10)
Location: HANA
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported golf ball size hail in conjunction with strong winds in Hana on Maui.

Hail in HONOLULU, HAWAII
From 09-MAR-12 06:05:00 to 09-MAR-12 06:20:00 (HST-10)
Location: KANEOHE STATION
Magnitude: 4.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A hail stone saved by a resident near Marine Corps Base Hawaii on Oahu measured 4 1/4 inches on the long axis, was 2 1/4 inches wide, and 2 inches tall.

Thunderstorm Wind in MAUI, HAWAII
From 09-MAR-12 02:00:00 to 09-MAR-12 02:10:00 (HST-10)
Location: HANA
Magnitude: 43.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Public

Strong winds destroyed a portion of the roof on the Hana Hotel on Maui.

Tornado in HONOLULU, HAWAII
From 09-MAR-12 07:10:00 to 09-MAR-12 07:20:00 (HST-10)
Location: KAILUA
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A National Weather Service Honolulu Damage Survey team confirmed a waterspout moved ashore as an EF0 tornado in Lanikai and tracked southwest, impacting portions of the Enchanted Lakes subdivision in Kailua on Oahu.  Several roofs were damaged or destroyed, trees were downed, road signs were mangled, and power lines were snapped.

Flash Flood in MAUI, HAWAII
From 09-MAR-12 01:45:00 to 09-MAR-12 11:24:00 (HST-10)
Location: WAIANAPANAPA SP
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Bridge at mile marker 29.5 along the Hana Highway was impassable due to flooding waters.

Flash Flood in KAUAI, HAWAII
From 09-MAR-12 01:56:00 to 09-MAR-12 22:56:00 (HST-10)
Location: PRINCEVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Flooding waters closed Kuhio Highway at the Hanalei Bridge.

Flash Flood in KAUAI, HAWAII
From 09-MAR-12 01:56:00 to 09-MAR-12 22:56:00 (HST-10)
Location: WAILUA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Water from heavy rain closed Kuhio Highway in the vicinity of the Wailua Golf Course on Kauai.

Flash Flood in KAUAI, HAWAII
From 09-MAR-12 02:29:00 to 09-MAR-12 22:56:00 (HST-10)
Location: LIHUE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A debris flow along Kapule Highway on Kauai closed all three lanes of traffic near the Kauai Marriott.

Flash Flood in MAUI, HAWAII
From 09-MAR-12 01:45:00 to 09-MAR-12 11:24:00 (HST-10)
Location: PAUWELA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Debris flow occurred along Hana Highway at mile marker 11.