Monsoon is active along Indo-Gangetic Plains and vigorous over Gangetic West Bengal. There are two low pressure areas, active along the axis of monsoon trough. Well-marked low pressure is over Gengetic West Bengal and A low pressure is over east Uttar Pradesh.
The well-marked low pressure area will gradually move in westerly direction across Jharkhand and South Bihar towards southeast Uttar Pradesh. The low pressure area will also move to western part of Uttar Pradesh during next 24 to 48 hours.
During last 24 hours, heavy to very heavy rains occurred over Gangetic West Bengal. Kolkata recorded 150 mm, Diamond Harbour 218, Midnapore 134 and Bankura recorded 106 mm rain. Moderate to heavy rain occurred over Northern parts of Odisha as well as over parts of Jharkhand.
Moderate to heavy rains are expected to continue over Southern districts of West Bengal for another 24 hours. Rain will be moderate to heavy over many parts of South Bihar, Jharkhand, North Chhattisgarh, North Madhya Pradesh and Southern parts of Uttar Pradesh during next two days. Many parts of northeast and east Rajasthan may receive flooding rains.
The two low pressure areas are expected to merge over southwest Uttar Pradesh by August 1st. Delhi, Punjab Haryana and western parts of Uttar Pradesh may receive light to moderate rain with isolated heavy spells during next three to four days. Two low pressure areas embedded with axis of monsoon trough is a rare sight. First week of August is going to be rainy for north west, central and east India.