Weather Chapter 14

• -A column of rotating wind over water that has characteristics of dust devil and tornado.
• -or simply a tornado over water.

Top of a thunderstorm

a stong localized downdraft(dowburst) less than 4km wide that occurs beneath thunderstorms.

The luminous lightning stroke that propagates upward from the earth to the base of a cloud.

An area of rotating clouds that extends beneath a supercell thunderstorm and from which a funnel cloud may apppear.

Florida

a boundary that separates a cold downdraft of a thuderstorm from warm, humid surface air. on the surface its passage resembles that of a cold front.

An initial discharge of electrons that proceeds intermttently toward the ground in a series of steps in a cloud-to-ground lightning stroke.

• A large organized covective weather system comprised of a number of individual thunderstorms. the size of an MCC an b 1000 times larger than an indibidual ordinary cell thunderstorm.
• -or simply: a large group of t-storms that organize into a long lasting weather system

• the sound due to rapidly expanding gases along the channel of a lighning discharge.
• - or simply rapid heating of air near lightning.

First stage of a thunderstorm

Oklahoma

• -Afunnel-shaped cloud of condensed water,usually extending from the base of a cumuliform cloud. the rapidly rotating air of the funnel is not in contact with th ground.
• - A tornado that has not touched the ground

a line of thunderstorms that form along a cold front or out ahead of it.

strongest tornado

• -Cloud contains both updraft and downdraft.
• - Second stage of a thunderstorm

• -the transport of cold dry air by the wind into the side of a developing thunderstorm.
• -leads to the formation of the downdraft.

• 1.Cumulus stage OR growth stage
• 2.Mature stage
• 3.Dissipating stage

• -damaging winds of 58 mph(microburst)
• -large hail(over 3/4)
• -tornado
• -also have heavy rain, frequent lightning

• -a large, long-lasting thunderstorm with a single violently rotaing updraft.
• -this can lead to the formation of tornadoes.

the fujita scale is for messuring tonadoes and the saffir scale is for messuring hurricans.