Deep depression formed over Northwest Bay: BMD

The low over North Bay and adjoining area moved west-northwestwards and intensified into a well-marked low first and then into a Depression over Northwest Bay and adjoining West Bengal and Bangladesh coast (near lat 21.3°N and lon 89.6°E) at 6am today (25 July), according to the Bangladesh Meteorological Department (BMD). 

It is likely to move west-northwestwards and cross West Bengal - Bangladesh coast during afternoon on Friday.

Due to the Depression over Northwest Bay and the adjoining west Bengal and Bangladesh coast, all maritime ports have been advised to keep hoisted local cautionary signal No. 3. 

The axis of monsoon troughs runs through Rajasthan, Uttar Pradesh, Bihar, West Bengal, the centre of the Depression to Assam across the Southern part of Bangladesh. Monsoon is active over Bangladesh and strong over the North Bay, read the BMD updates. 

Moreover, the met office has forecast light to moderate rain in all divisions, including Dhaka, in the country in 24 hours commencing 9am today.

"Light to moderate rain or thunder showers accompanied by temporary gusty wind is likely to occur at most places over Khulna, Barishal, Chattogram and Sylhet divisions and at many places over Rangpur, Rajshahi, Dhaka and Mymensingh divisions with moderately heavy to very heavy falls at places over Khulna, Barishal and Chattogram divisions.," said a met office update.

Meanwhile, a mild heat wave is sweeping over Rangpur division and it may abate.

Day and night temperatures may fall slightly over the country, according to the BMD. 

Khulna's Koyra experienced the highest 92 millimetres of rainfall in the last 24 hours till 6am. 

The country's highest temperature 37.2 degrees Celsius, was recorded in Tetullia over the past 24 hours till 6pm yesterday, while the lowest temperature 20.5 degrees Celsius was recorded in Bandarban till 6am today.