L3 comminications Stormscope II Series Pilot's Manual
Also see for Stormscope II Series: Pilot's guide
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Contents
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1-3Stormscope ®WX-1000 Pilot’s Guide2-3Chapter 2 – Storm Mapping Principlestive wind shear turbulence present. In fact, as convective windshear increases, the rate of electrical discharges increases at anincreasing rate. This relationship means that if you find theelectrical discharges, you’ve found the wind shear.Stages of a ThunderstormAll thunderstorms begin as cumulus clouds, build to anintense mature stage, and finally dissipate. Each of thesestages in the life of a thunderstorm present a different set ofdangers to aircraft. The WX-1000 maps all stages in the lifeof a thunderstorm so that you won’t be caught unaware by athunderstorm that can build, mature, and dissipate in aslittle as 20 minutes.Cumulus StageThe cumulus or beginning stage of a thunderstorm is usuallyprecipitation free. In this stage, the risks to an aircraft andits occupants include strong vertical winds, severe turbu-lence, icing, and convective wind shear.Mature StageIn the mature and most intense stage of a thunderstorm, thewater droplets within the cloud collide and combine to formrain and hail and, at cooler temperatures, sleet and snow. Thisstage poses many hazards to aircraft including heavy precipita-tion, high winds, convective wind shear, severe turbulence,downbursts, hail, icing, tornadoes, and lightning.Dissipating StageIn the dissipating stage, the updraft weakens and at the sametime, the convective wind shear and other hazardous condi-tions begin to subside. There may be high rainfall rates inthis stage, but the severe dangers are diminishing.Stages of a Thunderstorm |
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