E-Paper
Monsoon revival begins in northwest India but high rainfall unlikely: IMD
New Delhi: With easterly winds bringing in moisture, the monsoon started reviving over northwest India from Thursday but the Indian Meteorological Department (IMD) said that “there won’t be copious amount of rain”
New Delhi: With easterly winds bringing in moisture, the monsoon started reviving over northwest India from Thursday but the Indian Meteorological Department (IMD) said that “there won’t be copious amount of rain”. The monsoon trough was along the Himalayan foothills during the first half of August that led to “break” monsoon conditions over the plains for over two weeks, according to the IMD.
“The monsoon trough has started moving to its normal position. It was to the north which is why we had a dry spell. Easterly winds have started penetrating northwest India. Our models are showing an increase in rainfall over the Haryana, Chandigarh region. In August there was very less rainfall activity. The monsoon current has also weakened which is why for many days there was very less rain over the west coast also,” explained K Sathi Devi, head, national weather forecasting centre at IMD. “But there will not be copious amount rain. Because monsoon flow is not very strong,” she added.
The western end of monsoon trough is now near its normal position and the eastern end is south of its normal position. The eastern end of monsoon trough is very likely to shift gradually northward towards foothills of Himalayas during next two days, said the weather agency. A cyclonic circulation is lying over south Bihar and neighbourhood. It is likely to move nearly westwards during next three days, the IMD said.
Due to above meteorological conditions, gradual increase in rainfall activity is likely over northwest India and Bihar. Widespread rainfall with isolated heavy rain is very likely over Bihar, east Uttar Pradesh and Uttarakhand from till August 23 and heavy to very heavy rain is also very likely over Uttarakhand on August 20. Fairly widespread rainfall is very likely over west Uttar Pradesh, Himachal Pradesh, Haryana, Chandigarh and east Rajasthan during August 20 to 23 with isolated heavy rainfall over these areas on August 20 and 21
Enhanced rainfall activity over central and adjoining north Peninsular India can be expected during next two days. Fairly widespread to widespread rainfall activity with isolated heavy rain is very likely over Gujarat region, Konkan, Goa, Madhya Maharashtra and Madhya Pradesh during August 20 to 21. Rainfall activity is very likely to decrease thereafter over above areas. Widespread and heavy rain is likely to increase over northeast India; sub–Himalayan West Bengal and Sikkim on August 22.
There is a 9% rain deficiency during the monsoon season since June 1 with 10% deficiency over northwest India; 11% deficiency over east and northeast India; 11% deficiency over central India and 5% excess over south peninsula. Punjab and Himachal Pradesh have a 22% rain deficiency; Chandigarh 39% deficiency; Uttarakhand 8% deficiency; Delhi and Haryana have recorded 6% and 13% excess respectively during the season. In other regions also many states have significant rainfall deficiency such as 29% in Odisha; 48% deficiency in Gujarat; 27% rain deficiency in Kerala.
Monsoon begins withdrawal from northwest India around September 17 and withdraws completely by October 15.
