Gangetic plains over Bihar and West Bengal and Odisha in eastcentral India have been facing intense heat for the last one week due to continuation of westerly winds. But the weather system in the Bay of Bengal has come as a rescue to the people of the region.
According to the latest weather update by Skymet Meteorology Division in India, the weather system would change the wind conditions in the region. Hot and dry westerly winds will make way for moist easterly winds which will gradually drop the maximum temperatures in these regions from Saturday onwards. By this time rain and thundershowers are also expected in these parts.
On Wednesday, day temperatures rose further in Bihar and Gangetic West Bengal. Kolkata was the only place where maximum dropped to 40°C on Wednesday after recording 41.5°C on Tuesday. The maximum temperature in Kolkata is still four notches higher than the normal. Other places like Bankura, Sriniketan, Asansol and Burdwan in West Bengal saw day temperatures settle five to eight degrees above average on Wednesday. Maximums in Patna, Muzaffarpur, Chapra and Bhagalpur in Bihar were four to six degrees above average.
Heat wave also continues in Odisha with Bhubaneswar recording above average maximum temperature on Wednesday, by seven degrees. Chandibali and Cuttack saw day temperatures settle five degrees above normal.
In North India, day temperature in Delhi dropped marginally on Wednesday to record 38.3°C. This was due to relatively cooler northwesterly winds. However, the prevalence of westerly winds will send the maximum soaring to 40°C during the next two days.
Southern parts of northwest plains like south Haryana, east Rajasthan and west Uttar Pradesh will observe temperatures rising and recording more than that in Punjab and north Haryana. A fresh Western Disturbance over Jammu & Kashmir and its associated cyclonic circulation over northwest plains from Saturday onwards could lead to dust storms or thunderstorms and pull down the day temperatures.
Pre-monsoon rain could intensify over northeastern states as the weather system in the Bay of Bengal will get closer to these parts during the next two days. A trough of low is extending from a cyclonic circulation in sub-Himalayan West Bengal to the centre of the weather system which will continue to send southwesterly winds to the region to bring rain and thundershowers.
Pre-monsoon rain in South India will also continue over Kerala, Karnataka, Tamil Nadu and Andhra Pradesh during the next two days. Friction of opposite winds (dry and moist) will cause these rains.
