What the hail? How updrafts impact hail size

TUCSON – It’s a key component to thunderstorm development & subsequently, hail growth.
For a thunderstorm to develop, air must be rising. This rising air is called the updraft, allowing air to cool, condense and become a thunderstorm. The faster the updraft, the stronger the thunderstorm.
What updrafts are to thunderstorm development, downdrafts lead to their demise. Eventually, rain-cooled air sinking toward the ground chokes off the updraft, weakening thunderstorm activity.
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