The low pressure area over northwest Bay of Bengal has crossed Odisha coast. It is now located over interior Odisha, South Jharkhand and adjoining Chhattisgarh. The cyclonic circulation continues to extend up to mid tropospheric level tilting southward with height.
The weather system will move west northwestward and reach East Madhya Pradesh in the next 24 hours. The low pressure area will move slowly before shifting over North Madhya Pradesh and Southwest Uttar Pradesh.
Low pressure area has already given moderate spell of rain and thundershower over North Odisha, Gangetic West Bengal and South Jharkhand. The confluence zone tracking ahead of the center of the system has lashed many parts of Chhattisgarh, North Telangana, South Madhya Pradesh, North Maharashtra and Gujarat with moderate to heavy rain and thundershower during past 24 hours. Foothills of Bihar and Uttar Pradesh also witnessed sporadic showers and were intense at few places like Forbesganj, Supaul and Varanasi.
The maiden low pressure area of August will continue to move northwest and drag the western end of monsoon trough south of its normal position. The trough will run south of Delhi in the close proximity on 20th and 21st August and further over parts of North Madhya Pradesh and Southwest Uttar Pradesh.
Heavy rain is expected during this period over Delhi, Agra, Mathura, Gwalior, Guna, Shivpuri, Datia, Morena, Sheopur, Bhind and Ashok Nagar. Parts of Haryana and Rajasthan contiguous to the national capital will also receive intense intermittent showers.
In the absence of rains for the last more than a week over North India, the day temperatures shot up to high 30’s and even touched 40°C at few places like Churu and Ganganagar. Base observatory Safdarjung in the national capital measured maximum temperature of 38°C yesterday.
This happened after a gap of nearly one month as the city had last crossed 38°C on 17th July by recording 38.8°C. With the wet spell approaching, these temperatures are likely to dip by 4-6°C. The rainfall deficiency will also recover partially for Delhi and West Uttar Pradesh.