A low pressure area brewing in the west-central Bay of Bengal has generated moisture in the air, turning the weather warm to the extent of a mild to moderate heat wave, with many areas including the capital sizzling under a 36.5 degrees Celsius maximum yesterday. The low pressure area may emerge by today (Friday), Abul Kalam Mallick, a senior meteorologist at the Dhaka Met Office told The  Independent. Asked how its birth is turning the weather sultry generating a heat wave like condition at the peak of the monsoon, Mallick said it was due to the latent heat being released into the atmosphere by the moisture laden air carried by the south eastern winds from the Bay. Besides, the monsoon axis passing over the central Bangladesh, being in a weak condition, has also made the heat felt having a lot of moisture in the air. But there are going to be rains today (Thursday) across the country that may start cooling the heat, Mallick added. The rains are likely to be there also today, washing away the heat. The rains will slow down and return again with gusto, he added.