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Bolts from the blue can have long reach.


Current U.S. Air Force operating procedures recommend that ground crews for aircraft and other personnel stop working outdoors when lightning is spotted within 5 nautical miles (nmi). However, a new analysis by the service suggests that that distance may not be adequate to fully protect the people or their planes.

Todd M. McNamara, a meteorologist at the Air Force Institute of Technology The Naval Postgraduate School serves a similar purpose for the U.S. Navy and U.S. Marine Corps. The U.S. Army does not have a comparable school; Army officers study at the Naval Postgraduate School or AFIT.  at Wright-Patterson Air Force Base Wright-Patterson Air Force Base, U.S. military installation, 8,023 acres (3,247 hectares), W Ohio, NE of Dayton; est. 1917. One of the largest airport installations in the world, it is the air force's main research and development base, and the headquarters of the  near Dayton, Ohio Dayton is a city in southwestern Ohio, United States. It is the county seat and largest city of Montgomery County. As of the 2005 census estimate, the population of Dayton was 158,873. , analyzed the path of more than 1.5 million cloud-to-ground lightning strikes around Florida's Kennedy Space Center Kennedy Space Center (Cape Canaveral) U.S.

launch site for manned space missions. [U.S. Hist.: WB, So:562]

See : Astronautics
. A detection system there can map a lightning bolt's trajectory in three dimensions. Records from the network of instruments show that more than 30 percent of the cloud-to-ground strikes between March 1997 and December 2000 traveled horizontal distances of more than 5 nmi, or 9.25 kilometers, from their point of origin.

The current safety limit was extended from 3 nmi in April 1996 after a bolt of lightning from a storm 5 nmi away killed one airman and injured several others refueling an aircraft at a base in the Florida panhandle The Florida Panhandle is the region of the state of Florida which includes the westernmost 16 counties in the state. It is a narrow strip lying between Alabama and Georgia to the north and the Gulf of Mexico to the south. . --S.P.
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Title Annotation:distance of effects from lightning
Publication:Science News
Article Type:Brief Article
Geographic Code:1USA
Date:Jan 5, 2002
Words:182
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