The Bangladesh Meteorological Department has advised all seaports to hoist local cautionary signal No. 3 as squally weather is likely over the North Bay and coastal areas.

In a warning issued on Wednesday (3 September), meteorologist Dr. Md Omar Faruq said a low-pressure area over the northwest Bay of Bengal has intensified into a well-marked low. It is likely to move west-northwestward, causing significant pressure variations and squally winds over the region.

Authorities instructed Chattogram, Cox’s Bazar, Mongla, and Payra ports to keep signal No. 3 hoisted. Fishing boats and trawlers in the North Bay have been advised to remain close to the coast and proceed with caution until further notice.

Rainfall is likely across all eight divisions of Bangladesh over the coming days as the monsoon remains active over the country and moderate over the North Bay, according to the Meteorological Department.

In its 120-hour forecast issued on Friday (29 August), the Met office said many areas of Rangpur, Rajshahi, Khulna, Barishal and Chattogram divisions, and some parts of Dhaka, Mymensingh and Sylhet divisions may experience light to moderate rain or thundershowers accompanied by temporary gusty winds. Some places may see moderate to heavy rainfall, while both day and night temperatures are expected to drop slightly.

On Saturday (30 August), widespread rain is likely in Rangpur and scattered showers in other divisions, with heavy to very heavy rainfall in some parts of Rangpur. Daytime temperatures may rise slightly, but nighttime temperatures will remain nearly unchanged.

On Sunday (31 August), many parts of Rangpur, Mymensingh, Chattogram and Sylhet may see rain, while scattered showers are expected in other regions. Some areas could experience moderately heavy rainfall, with temperatures likely to rise slightly.

The extended five-day outlook suggests rainfall activity may persist across the country.

Heavy rainfall and thunderstorms are likely in different parts of Bangladesh over the next five days, according to the Bangladesh Meteorological Department. The forecast issued on Wednesday (27 August) said the monsoon is currently active over the country and moderate to strong over the North Bay of Bengal.

A low-pressure area lies over the northwest Bay of Bengal, near the Odisha coast, while the monsoon trough extends from Rajasthan across northern India to Bangladesh and Assam. Under its influence, widespread rain and thundershowers are expected.

On Wednesday, heavy showers are likely in Rangpur, Mymensingh, Chattogram and Sylhet divisions, with scattered rainfall in other regions. Some areas may experience heavy downpours.

The forecast suggests that rainfall will continue across major divisions including Dhaka, Khulna, Barishal and Chattogram until Friday. Light to moderate rain is expected in most divisions on Saturday and Sunday, although the overall trend of rainfall may gradually decrease by the end of the period.