Hypercell Thunderstorm

What is it?
A hypercell thunderstorm is a hypothetical class of extreme supercell thunderstorm that forms if updrafts are more than 100 mph and hail over 5 inches in diameter. These produce very powerful tornadoes that are miles wide. Straight lined winds of up to category 5 hurricane wind speeds aren't uncommon. Hypercells are long-lived in nature, which they sometimes last up to 12 hours while maintaining their strength. Near the end of their life, they weaken to supercell status and dissipate.