What causes thunderstorms?

Question

and why is there a high frequency here in ireland over the last week

because we hardly ever get thunderstorms,it's been really sunny in the morning and now theres a thunderstorm on the way

Answer 1

Somewhat oversimplified, the sun heats the earth, heat causes water to become vapor. Vapor becomes clouds. Add in the presence of the jet stream and a low pressure area and the clouds can form thunderheads. As high as 70k feet sometimes.

Lightening makes the thunder.

We have them all the time in Texas, but allot more in the spring. That is also tornado season.

Answer 2

Ascent of warm and humid air in the atmosphere with a steep lapse rate results in strong convection currents leading to the formation of cumulonimbus clouds which produce thunderstorms.

Strong updrafts and downdrafts within the cloud cause a separation of electrical charges inside the cloud.When the difference in electricla charges within a cloud or between the bottom of a cloud and earth's surface becomes large enough,electricity is discharged in the form of lightning and the noise of the lightning discharge is called thunder.

Answer 3

sharp change in temp may lead to any thing

Answer 4

pumpkins

Answer 5

"When a stroke of lightning passes through the atmosphere, the air becomes intensely hot, perhaps to 30 000 °C. The violent expansion thus caused makes a shock-wave heard as thunder."