
Yet another spell of heavy to very heavy rainfall began in Bangladesh’s upstream with India Meteorological Department issuing orange to red alerts over vast areas through June 29.
The rainfall is likely to occur in the Brahmaputra and Barak basins, potentially discharging huge volumes of water deteriorating the ongoing flood situation in north-eastern Bangladesh.
On Tuesday, the Kushiyara, Surma and Someswari flowed above their danger marks at five points in Sylhet, Netrokona and Moulvibazar, up to 25cm above the flood levels.
The rivers receded, though rather slowly, over the last few days due to a let up in rainfall in Bangladesh and its upstream.
The divisional commissioner’s office in Sylhet said that 18,86,323 people were still stranded in Moulvibazar, Sylhet, Sunamganj and Habiganj districts, reported ¶¶Òõ¾«Æ· correspondent in Sylhet.
A total of 27,380 people were staying in flood shelters in the districts, the official estimate added.
Sylhet emerged as the worst flood affected with vast land areas still remaining underwater, particularly in remote border areas where floodwater completely devoured the landscapes of scores of villages.
Thousands of people are believed to have taken shelter at their relatives, accompanied by cattle.
The latest spell of rain started just when some people returned or began thinking to get back to their houses.
A red alert issued by the IMD advises people to take action because of imminent inclement weather while an orange alert underlines the need to stay prepared for the same reason.
In the 24 hours until 8:30am, the IMD recorded 200 millimetres of rainfall at many places in West Bengal, Sikkim and Arunachal Pradesh. Meghalaya also recorded up to 100mm of rainfall.
The USA-based The Weather Channel said that a cyclonic circulation lies over north-east Assam in the lower tropospheric levels, with strong southerly and southwesterly winds prevailing from the Bay of Bengal into east and north-east India at these levels.
Under its influence, fairly widespread to widespread rainfall accompanied by thunderstorms and lightning is likely over Sub-Himalayan West Bengal and Sikkim, Arunachal Pradesh, Assam and Meghalaya, and Nagaland, Manipur, Mizoram, and Tripura during the next five days, The Weather Channel said on Tuesday.
Isolated heavy to very heavy rainfall is expected over Sub-Himalayan West Bengal and Sikkim, Assam and Meghalaya, and Arunachal Pradesh from June 25 to 29, with isolated heavy rainfall over Nagaland, Manipur, Mizoram, and Tripura during the same period.
Isolated extremely heavy rainfall is also likely over Assam and Meghalaya on June 29, the forecast said.
The Bangladesh Meteorological Department predicted light to moderate rain accompanied by a temporary gusty wind at many places over Rangpur, Mymensingh, Chattogram and Sylhet divisions, at a few places over Rajshahi, Dhaka and Barishal divisions, and at one or two places over Khulna division today.
The BMD in its bulletin issued at 6:00pm on Tuesday also predicted a wet spell to spread over Bangladesh over the next five days.
On Tuesday, in the 24 hours until 6:00pm, Bangladesh’s highest rainfall of 56mm was recorded in Netrokona, a flood-affected area.
Bangladesh’s Flood Forecasting and Warning Centre on Tuesday afternoon warned that the Teesta River might swell over the next 48 hours from heavy rainfall in Bangladesh’s northern region and its adjoining upstream areas.
In the 24 hours until 9:00am, the FFWC recorded Bangladesh’s highest rainfall of 70mm in Jafflong, Sylhet.