The rivers in Rangpur division might rapidly rise by tomorrow following very heavy rain inside Bangladesh and its adjacent upstream areas in India under the influence of a low pressure that started moving onto land.
鈥楾he low pressure weakened soon after it started making landfall,鈥� meteorologist Omar Faruque said, predicting the rainfall might continue today.
The Flood Forecasting and Warning Centre in a warning issued on Wednesday afternoon said that Rangpur and its adjacent upstream area might witness up to 300mm rainfall over the next three days.
The water levels of the Teesta, Dharla and Dudhkumar rivers might rapidly swell over the period, the flood forecasting centre said, causing particularly the Teesta to flow near the flood level in Lalmonirhat, Nilphamari, Rangpur and Kurigram districts.
The upper Karatoa, upper Atrai, Punorbhoba and Tangon rivers might also rapidly swell over the period, the forecasting centre said.
鈥楲ow-lying areas in parts of Rangpur might witness brief flooding,鈥� said Sarder Udoy Raihan, executive engineer of the flood forecasting centre.
The low pressure area over West-central and adjoining North-west Bay moved west-north-westwards, weakened and merged with the monsoon axis, said the Bangladesh Meteorological Department.
Monsoon is active over Bangladesh and strong over north bay, the department added, predicting the day temperature to drop by 3C today.
The meteorological agency in its weather bulletin issued for 24 hours at 6:00pm on Wednesday said that light to moderate rain or thunder showers accompanied by a temporary gusty wind was likely to occur at most places over Rangpur and Rajshahi divisions and at many places over Dhaka, Mymensingh and Sylhet divisions and at a few places over Khulna, Barishal and Chattogram divisions with moderately heavy to heavy falls at places over the country.
In the 24 hours until 6:00pm, the department said, Bangladesh鈥檚 maximum highest rainfall of 105mm was recorded in Ramgati in Lakshmipur, followed by moderately heavy to heavy rainfall almost across Bangladesh.
On Wednesday, Bangladesh鈥檚 highest temperature of 33.3C was recorded in Bandarban.
The India Meteorological Department predicted extremely heavy rain in West Bengal and Sikkim today.
Places of West Bengal and Sikkim recorded up to 150mm of rainfall in the 24 hours until 8:30am Indian time on Wednesday.
The Indian meteorology agency put West Bengal and Sikkim under red and orange alert through tomorrow, indicating that people in the area should take action to deal with very heavy rainfall.