Pre-Monsoon season for Kerala, Tamil Nadu and South Interior Karnataka begins in the month of March itself. This time the pre-Monsoon period has remained deficient in the entire region. March has remained largely deficient, while April fared a little better. May too has been sluggish so far in terms of rain. As the monsoon arrival nears, pre-Monsoon activity picks up pace in the region. However, this time, no such trend was observed.
The below table compares the rain deficiency figures of this year’s pre-Monsoon season-
Pre-monsoon activity is governed by two main features in South India-
- Peninsular trough
- Cyclonic Circulation over Comorin areas
In the remaining days of May, no rainfall activity is forecast for South India except for the region of South Interior Karnataka, where there is possibility of rain in the next 3 days.
At present, isolated light rain is being observed in places like Bangalore, Mysuru and Mandya. These rains are likely to continue for the next 36 hours. A few places might even report heavy downpour during this time. Rainfall activity will pick up towards the third day.
Despite these ongoing rains, the rainfall deficiency is likely to continue in the entire region.
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