On the morning of March 9, 2012, a long-lived

hail Hail is a form of solid precipitation. It is distinct from ice pellets (American English "sleet"), though the two are often confused. It consists of balls or irregular lumps of ice, each of which is called a hailstone. Ice pellets generally fal ...

storm hit the Hawaiian islands of

Oahu Oahu () (Hawaiian language, Hawaiian: ''Oʻahu'' ()), also known as "The Gathering place#Island of Oʻahu as The Gathering Place, Gathering Place", is the third-largest of the Hawaiian Islands. It is home to roughly one million people—over t ...

and

Lanai Lanai ( haw, Lānai, , , also ,) is the sixth-largest of the Hawaiian Islands and the smallest publicly accessible inhabited island in the chain. It is colloquially known as the Pineapple Island because of its past as an island-wide pineapple pl ...

. The hailstorm was produced by a supercell

thunderstorm A thunderstorm, also known as an electrical storm or a lightning storm, is a storm characterized by the presence of lightning and its acoustic effect on the Earth's atmosphere, known as thunder. Relatively weak thunderstorms are someti ...

. This event produced the largest hailstone ever recorded in Hawaii since records began in 1950. The hailstone was measured at long, tall, and wide.

National Weather Service The National Weather Service (NWS) is an Government agency, agency of the Federal government of the United States, United States federal government that is tasked with providing weather forecasts, warnings of hazardous weather, and other weathe ...

meteorologist Tom Birchard stated that the event was "unprecedented." In addition to the spectacular early-morning lightning storms and flooding from the of rainfall received, a tornadic

waterspout A waterspout is an intense columnar vortex (usually appearing as a funnel cloud, funnel-shaped cloud) that occurs over a body of water. Some are connected to a cumulus congestus cloud, some to a cumuliform cloud and some to a cumulonimbus clou ...

formed off the coast of Oahu during the morning of March 9, 2012. Non-supercellular waterspouts are not uncommon (the State of Hawaii records an average of one waterspout/tornado per year), this mesocyclone-induced waterspout tracked inland for 1.5 miles, becoming an EF0 tornado that caused minor damage to the Enchanted Lakes subdivision of

Kailua Kailua () is a census-designated place (CDP) in Honolulu County, Hawaii, United States. It lies in the North Koolaupoko, Hawaii, Koolaupoko District of the island of Oahu, Oahu on the windward and leeward, windward coast at Kailua Bay. It is i ...

at 7:10 am Hawaiian-Aleutian Time.Hawaii News Now (KGMB-TV and KHNL-TV)
/ref>

Confirmed tornadoes

References

2012 in Hawaii 2012 natural disasters in the United States Natural disasters in Hawaii 2012-03 {{Weather-stub

Confirmed tornadoes

See also

References