I thought so.
Weather is not something to joke with.Especially the CB's.You should carefully plan your way around them,and if you enter a storm,it is better not to turn in it.Take the fastest way out of there,and most of the time this is not a 180 turn.But you need radar for that.
There were accidents due to misinterpretation of the weather and of the capabilities of your plane.
I know of some pilots that recently flew bellow a CB,at high altitude,in Africa.They had a chance,because they were not close to the ground.As I've heard,they were at full power,descending with more than 2-3000 '/min.(on a 737) because of a downdraft.