The cold spell is forecast to strike northern border provinces on the evening of April 13, the centre said on April 11. It will bring rain and cause temperatures to drop slightly by 3-4oC.

Meanwhile, the current a heat wave has baked the north-western region for the past few days and is spreading to the north-eastern region. Daytime temperatures in Lai Chau and Dien Bien provinces rose to 36-38oC on April 10-11and are expected to peak at 39-40oC in the next two days.

Central provinces such as Nghe An, Hue and Quang Binh have also experienced the hot air for several days, with temperatures ranging between 36.5 to 37.6oC.

People in north-eastern provinces will feel a fairly hot on April 12-13 before the cold spell comes and cool down the hot weather.