A new ‘heat alert’ has been issued, but rain is expected only after this heat wave

The Bangladesh Meteorological Department has issued a new heat wave warning or ‘heat alert’, saying that the ongoing heat wave over the country may continue for the next 72 hours from Thursday.

Heat alert has been issued for the fourth time in Bangladesh during the last few days of intense heat in the current season.

According to the Meteorological Department, this fire is spreading over about 45 districts in different degrees.

The agency says mild to intense heat waves moving over the country may continue, adding to the discomfort due to excess water vapor.

The temperature will not rise much in the next three days, although the heat will not decrease much. However, after this heat wave, the Meteorological Department expects that rain may start little by little.

In Bangladesh, a warning is usually issued when the temperature exceeds 36 degrees Celsius.

If the temperature is below 36 to 38 degrees Celsius, it is called a mild heat wave by meteorologists.

Also, if the temperature is between 38 and 40 degrees Celsius, it is called moderate and between 40 and 42 degrees Celsius, it is called severe heat wave.

And if the temperature rises above 42 degrees Celsius, then it is called extreme heat wave.

In Bangladesh, a very intense heat wave is seen over some districts of South Western region including Jessore, Chuadanga and Pabna for the past few days.

In the last 24 hours, the highest temperature in the country was recorded in Mongla, 41.6 degrees Celsius.

Earlier in Bangladesh, 2023 was described by meteorologists as the hottest year in Bangladesh. That year the heatwave was recorded for three consecutive weeks.

As a result, Bangladesh is going through almost the same kind of violence for two consecutive years.

Although a fresh three-day hill alert has been issued, the Meteorological Department expects the trend of rainfall to increase in the Northeast from the end of this week.

“There is a possibility of rain in Sylhet and Chittagong region since 29th. But from what is being seen so far, there is a fairly good chance of rain at the beginning of next month,” meteorologist Bajlur Rashid told BBC Bengal.

Although it has rained since the end of this week, there is doubt as to how much the temperature will drop.

Because usually when the rain starts from the east, it does not reduce the heat much.

Mr. Rashid says that if the rain starts from the western region, it starts cooling the weather quickly but this time the rain may start from Sylhet and Chittagong region.

“As a result, the temperature will not drop much anytime soon. But it can be said that the temperature will not increase further,” he said.

The Meteorological Department says that from this Thursday morning, there may be temporary rain with gusty wind or thunder in two places in Chittagong and Sylhet divisions.

At the same time, scattered hail may occur at some places.

Today severe heat wave is flowing over Dinajpur, Nilphamari, Rajshahi, Pabna, Faridpur and Gopalganj districts along with Khulna division.

Apart from this, the mild to moderate heat wave is likely to continue over Mymensingh, Moulvibazar, Rangamati, Chandpur, Noakhali, Feni and Bandarban districts and some areas of Barisal, Rangpur, Rajshahi and Dhaka divisions.

On the second day of the heat alert i.e. Friday and on the third day Saturday also there is a possibility of rain, thunderstorm or hail in some places of Sylhet division.

However, in the first two days from today, the day and night temperatures across the country are likely to remain unchanged, but on the third day, the day temperatures may increase slightly across the country. But the night temperature will remain almost unchanged.

In all three days the discomfort will remain due to water vapor ie the heat will not decrease much.

However, after this three-day heat wave, there is a possibility of rainfall in the north-eastern part of the country, which the meteorologists expect to increase by the first week of next month.

By reviewing the data of the Bangladesh Meteorological Department, it can be seen that high temperatures are prevailing in the districts of the northwestern part of Bangladesh.

According to meteorologists, the location of Indian states such as West Bengal, Bihar, Uttar Pradesh, etc. is towards that region of Bangladesh.

The temperature in these provinces is very high. The temperature in these places fluctuates between 42 and 48 degrees Celsius during this time of the year.

“Since they are hot regions, the hot air from there enters into Bangladesh via Chuadanga, Jessore, Kushtia, Rajshahi and it warms up our temperature,” meteorologist Muhammad Abul Kalam Mallick told BBC Bengal recently.

In addition to global climate change, this year’s heat wave is expected to be relatively high across the country due to the movement of intercontinental air and the increase in temperature at the local level.

“Analyzing the characteristics of past years, it appears that 2024 will go down as a hot year. We are going to have more heatwave days and rates this year,” said Mr. Malik.