Hail forms groups during the warmest time of the year because this is when the thunderstorm updrafts are strongest. Hail forms groups during the coldest time of year because it is the largest form of precipitation. Hail forms groups in the summer and early fall as a result of added uplift over mountains. Hail forms groups only in the summer and early fall.
1) Hail forms groups during the warmest time of the year because this is when the thunderstorm updrafts are strongest.
2) Hail forms groups during the coldest time of year because it is the largest form of precipitation.
3) Hail forms groups in the summer and early fall as a result of added uplift over mountains.
4) Hail forms groups only in the summer and early fall.