Cyclonic storms usually follow principal storm tracks across the continental United States in a generally easterly direction. This makes it possible to predict where the low-pressure storm might move next. Major Storms: Thunderstorms (Conditions; Uplift of air; Cumulus clouds) and Frontal Thunderstorms (Move with the front that produced them). Different parts of a thunderstorm cloud develop centers of electric charge. Lightning is a giant electric spark that discharges the accumulated charges.
Presentation on Cyclonic Storms
