Cyclone formation in BoB

• GS Paper - 1 | Geographical Features and their Location | Important Geophysical Phenomena

Why is the Bay of Bengal More Prone to Cyclones?

1. Temperature difference
2. Sea surface temperatures and humidity - As there is more fresh water drainage in bay of bengal it does not get mixed with deep chilled water and sea surface temperature is higher than arabian sea
3. Absence of large landmass between the Pacific and the Bay, allows cyclonic winds to easily move into the Bay of Bengal.
4. Cyclones from Pacific ocean - moves here

More about cyclone -  https://www.drishtiias.com/news-analysis-editorials/news-analysis/11-06-2019

Arabian Sea Cyclones

• Cyclonic activity is comparatively less intense in the Arabian sea, as compared to the Bay of Bengal, where high-intensity severe cyclones originate frequently.
• In the last 120 years, just about 14% of all cyclonic storms, and 23% of severe cyclones, around India have occurred in the Arabian Sea.
• Arabian Sea cyclones are also relatively weak compared to those emerging in the Bay of Bengal.
• Gujarat coastline, where most of the cyclones emerging in the Arabian Sea are headed, is not very densely populated, ensures that the damage potential of the cyclones on the western coast is comparatively low.