Why hailstorm rain is more in premonsoon period ??

 Recently Bangalore had received a heavy hailstorm rain.  People could pick hail stones which where falling on ground  !!!

In North Karnataka region also, there were reports of hailstorm showers.

Only in Udupi, we haven't got a single drop of rain till now  !!!

Here neither hailstorm nor ordinary storm.

When there is intense ground heating and high atmospheric instability which are common during premonsoon months of March to May, hailstorm rains occur.

The peak ground temperature of 35 to 44 degree Celsius causes the warm air near the surface to  rise rapidly.

This rising hot air creates violent currents which are strong enough to carry the water droplets into freezing levels of atmosphere.

Here water droplets freeze into ice pallets.  These are hailstones.

During premonsoon, middle and upper layer of atmosphere are relatively dry.

When these hailstones fall through this dry air,  this air keeps the stone cold and make them to reach ground without melting completely.

During actual monsoon, air is fully saturated with moisture.  This makes the atmosphere more stable and prevents the current formation.

Hence we don't get hailstorm rains during monsoon.