An isolated thunderstorm is a type of storm that doesnt cover a large stretch of land, instead dumping rain on a concentrated area. These storms tend to occur where there are light winds and high moisture at low and middle levels close to the ground. They are mostly vertical in structure, are relatively short-lived, and usually do not produce violent weather at the ground. Isolated thunderstorms have less coverage, blanketing a smaller patch of land and affecting fewer people than other types of storms. Rain during isolated thunderstorms is usually heavy but brief, and lightning is typically infrequent. While isolated thunderstorms tend not to last very long and more rarely cause extreme weather on the ground, there is still a possibility of danger.