Thursday, 10 July, 2025
The Bangladesh Meteorological Department (BMD) has forecast heavy to very heavy rainfall across four divisions, including Dhaka, as the southwest monsoon remains active over the region.
In a special warning issued on Tuesday morning, the department said that some areas in the Dhaka, Chattogram, Khulna and Barishal divisions may experience significant rainfall over the next 24 hours, starting from 10am.
The department also warned of potential landslides in the hilly areas of the Chattogram Division due to the expected heavy rainfall.
Temporary waterlogging may occur in parts of the metropolitan areas of Dhaka, Chattogram and Khulna as a result of the downpours.
Generally, rainfall is considered light when 1-10mm is recorded in a 24-hour period, moderate when 11-22mm falls, moderately heavy between 23-43mm. Rainfall between 44-88 mm is deemed heavy, while any amount above 88mm qualifies as very heavy.
CAUTIONARY SIGNAL NO. 3 AT SEAPORTS
A low-pressure system over Gangetic West Bengal and adjoining areas has prompted the BMD to instruct the four maritime ports in Bangladesh to maintain local cautionary signal No. 3.
In its regular bulletin on Monday, the department said the Mongla, Cox’s Bazar, Payra and Chattogram ports have been advised to keep the signal hoisted due to the weather system.
Meteorologist Shahnaz Sultana told bdnews24.com that the low pressure is unlikely to intensify into a depression.
“The rainfall will continue today and tomorrow (Wednesday),” she said.
“It will decrease tomorrow afternoon.”
She added that the rain is expected to ease slightly on Jul 10 and 11 before increasing again on Jul 13 and 14.
The department also noted that the axis of the monsoon winds extends from Rajasthan, Madhya Pradesh and Bihar, passing through the low’s centre and the southern part of Bangladesh, stretching toward Assam. A further extension reaches into the northern Bay of Bengal.
Monsoon winds remain active over southern Bangladesh, fairly active elsewhere in the country, and strong in the north Bay of Bengal.
The forecast says that under its influence, light to moderate rain or thundershowers accompanied by temporary gusty winds may occur in most areas of Dhaka, Khulna, Barishal, Chattogram, Mymensingh and Sylhet divisions, and in many parts of Rangpur and Rajshahi divisions.
Day temperature across the country may drop slightly, while night temperatures are expected to remain mostly unchanged.
In the last 24 hours, the highest recorded rainfall was 157mm in Cox’s Bazar.
Other significant rainfall totals included 146mm in Hatia, 142mm in Patuakhali, 134mm in Feni, and 121mm in Khepupara.
The highest temperature during the period was 35.2 degrees Celsius in Dimla, Nilphamari. The lowest was 23 degrees Celsius in Tangail.
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The Bangladesh Meteorological Department (BMD) has forecast heavy to very heavy rainfall across four divisions, including Dhaka, as the southwest monsoon remains active over the region.
In a special warning issued on Tuesday morning, the department said that some areas in the Dhaka, Chattogram, Khulna and Barishal divisions may experience significant rainfall over the next 24 hours, starting from 10am.
The department also warned of potential landslides in the hilly areas of the Chattogram Division due to the expected heavy rainfall.
Temporary waterlogging may occur in parts of the metropolitan areas of Dhaka, Chattogram and Khulna as a result of the downpours.
Generally, rainfall is considered light when 1-10mm is recorded in a 24-hour period, moderate when 11-22mm falls, moderately heavy between 23-43mm. Rainfall between 44-88 mm is deemed heavy, while any amount above 88mm qualifies as very heavy.
CAUTIONARY SIGNAL NO. 3 AT SEAPORTS
A low-pressure system over Gangetic West Bengal and adjoining areas has prompted the BMD to instruct the four maritime ports in Bangladesh to maintain local cautionary signal No. 3.
In its regular bulletin on Monday, the department said the Mongla, Cox’s Bazar, Payra and Chattogram ports have been advised to keep the signal hoisted due to the weather system.
Meteorologist Shahnaz Sultana told bdnews24.com that the low pressure is unlikely to intensify into a depression.
“The rainfall will continue today and tomorrow (Wednesday),” she said.
“It will decrease tomorrow afternoon.”
She added that the rain is expected to ease slightly on Jul 10 and 11 before increasing again on Jul 13 and 14.
The department also noted that the axis of the monsoon winds extends from Rajasthan, Madhya Pradesh and Bihar, passing through the low’s centre and the southern part of Bangladesh, stretching toward Assam. A further extension reaches into the northern Bay of Bengal.
Monsoon winds remain active over southern Bangladesh, fairly active elsewhere in the country, and strong in the north Bay of Bengal.
The forecast says that under its influence, light to moderate rain or thundershowers accompanied by temporary gusty winds may occur in most areas of Dhaka, Khulna, Barishal, Chattogram, Mymensingh and Sylhet divisions, and in many parts of Rangpur and Rajshahi divisions.
Day temperature across the country may drop slightly, while night temperatures are expected to remain mostly unchanged.
In the last 24 hours, the highest recorded rainfall was 157mm in Cox’s Bazar.
Other significant rainfall totals included 146mm in Hatia, 142mm in Patuakhali, 134mm in Feni, and 121mm in Khepupara.
The highest temperature during the period was 35.2 degrees Celsius in Dimla, Nilphamari. The lowest was 23 degrees Celsius in Tangail.
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