Well marked low over Bay of Bengal has crossed the coast and is now lying over South Odisha, North Andhra Pradesh and Telangana region. Cyclonic circulation is extending up to 25,000 feet, tilting southwestward with height, a normal feature for the monsoon systems. This low pressure, unlike the other systems, is not expected to move deep over Maharashtra or Madhya Pradesh and later head for Rajasthan and Gujarat. The westward travel is going to get cut short and it may shift northeastward, in a very unusual manner. This move is likely to defy the persisting strong easterly jet over South Peninsula and the steering current in the high tropospheric levels. Possibly, this may be the reason for slight weakening of the system as it heads for North Odisha, Jharkhand and West Bengal.
Well marked low will trigger incessant rains over next 24hours covering southern and central parts of Telangana. Heavy rains will also lash contiguous parts of Vidarbha and North Interior Karnataka during this period. Some of the locations like Hyderabad, Medak, Siddipet, Rangareddy, Vikarabad, Yadadri, Bhuvanagiri, Nalgonda and Mahabubnagar will be at risk of localized flooding. Rail. Road and air traffic for the capital city Hyderabad may get impacted adversely. Parts of Vidarbha including Nagpur, Brahmapuri, Wardha, Washim, Chandrapur and Yeotmal are likely to receive heavy rain and thundershowers. Intense weather belt will extend to northern parts of Karnataka lashing Kalaburgi, Bidar, Yadgir, Raichur, Ballari and Vijayapura. Waterlogging, inundation of low lying areas and flooding rains may wash away roads and collapse trees and small structures. Relief over all these areas can be expected after 24 hours and more so from 29thJuly onward.
Well marked low is likely to drift northeastward along with the cyclonic circulation, tomorrow and keep this track for the subsequent 2-3 days. The weather system will initially move to North Odisha and Chhattisgarh and further on to Jharkhand and West Bengal on 29thJuly. As a weakened system, broad cyclonic circulation will cover Bangladesh and Gangetic West Bengal, the next day. Weather activity will accordingly shift the posts spanning across Odisha, Chhattisgarh, East Madhya Pradesh, Jharkhand, Bihar, East Uttar Pradesh, Gangetic West Bengal over the next 3-4 days.
Looks like, this low pressure will shift the monsoon trough northward. Western end of the trough as such is oscillating and more inclined to stay north of its normal position. The eastern end will align with the western one to make the trough run all along the Indo Gangetic plains in the 1st week of August. Later part of the week will find the trough in the close proximity of foothills, from Punjab to North Bengal and further on to the valley of northeast India.
