S E V E R E W E A T H E R R E P O R T I N G F O R M +-----------------------------------------------------------------------------+ | | | | | | | A violent, rotating column of air pendant | | | T O R N A D O | from a cumulonimbus cloud, and _touching_ | | | | the ground. | | | | | |-----+---------------------------+-------------------------------------------| | | | | | | | A violent, rotating column of air which | | | F U N N E L | _does not_ touch the ground and is usually| | | | pendant from a cumulonimbus cloud. | | | | | |-----+---------------------------+-------------------------------------------| | | | | | | | An isolated lowering of the thunderstorm | | | W A L L C L O U D | base -- possibly with signs of rotation. | | | | Usually on the order of two miles wide. | | | | | |-----+---------------------------+-------------------------------------------| | | |SIZE | | | | | | | | Precipitation in form of balls of irreg. | | | H A I L | |INCH(ES)| lumps of ice produced by convective clouds| | | | |DIAMETER| and _larger_ than roughly 1/4 inch. | | | | | | | |-----+---------------------------+-------------------------------------------| | | |MPH | |MEAS.| | | | | | | | A sudden brief increase in the speed of | | | WIND GUST | +--+ | the wind -- usually reported when over | | | | | |ESTD.| 18 MPH. | | | | | | | | |-----+---------------------------+-------------------------------------------| | | | | | | | Damage caused by straight-line winds, | | | WIND DAMAGE | particularly structural damage or to | | | | trees and/or utility poles. | | | | | |-----+---------------------------+-------------------------------------------| | | |AMOUNT|TIME| |MEAS.| | | | HEAVY| |PERD| | | Reducing visibility and causing ponding | | | | | +--+ | or flooding of road surfaces. | | | RAINS| | | |ESTD.| | | | | | | | | | |-----+---------------------------+-------------------------------------------| | | | | | | | Flood that rises and falls quite rapidly | | | FLASH FLOODING | with little or no advance warning usually | | | | as a result of intense rainfall. | | | | | |-----+---------------------------+-------------------------------------------| | | | | | | | | | | | | | | | | | | | | +-----------------------------------------------------------------------------+ WAS SIGHTED OR OBSERVED BY - +-----------------------------------------------------------------------------+ | | TRAINED SVR WEATHER SPOTTER | ORGANIZATION (LOCAL NET) | |--+ | | | | AMATEUR RADIO OP-NO TRAINING | | |-----------------------------------------------------------------------------| | | POLICE DEPEARTMENT PERSONNEL | AGENCY/DEPT | |--+ | | | | ESDA / C D PERSONNEL | | +-----------------------------------------------------------------------------+ AND WAS LOCATED - +-----------------------------------------------------------------------------+ | | | DIRECTION | | CROSS ROADS | | |MILES| |OF | | | | | | | AND | |----+-----+-------------------+---+------------------------------------------| | IN | COMMUNITY | | |TIME |AM |EST|DATE |UTC | | | |FL | AT | |---+---| | | |NEAR| | | | |PM |EDT| | Z| |----+------------------------------------------------------------------------| | MOVEMENT TOWARD | | | | | |-----------------------------------------------------------------------------| | REMARKS | | | | | |-----------------------------------------------------------------------------| | | | | | | |-----------------------------------------------------------------------------| | | | | | | +-----------------------------------------------------------------------------+ TRANSMITTED TO - +-----------------------------------------------------------------------------+ | | | | REGION | | TIME | AM |EST| DATE | BY | | | N W S | | | NCS | |----+---| | | | | | |RPTR NCS| | | PM |EDT| | | +-----------------------------------------------------------------------------+ This form copied from page 157 of THE EMERGENCY COMMUNICATOR'S HANDBOOK, 1985, published by The American Radio Relay League. Some minor modifications made.