Northern mountainous Son La and Hoa Binh provinces, northern midland andplain regions and central provinces from Thanh Hoa to Phu Yen arehardest hit by the heat wave.
The high temperature along with the lowest relative humidity of 40-60 percentduring this heat wave pose threats of fires and explosions in residential areasdue to the increased demand for electricity, and forest fires in centrallocalities, the centre said.
Dehydration, exhaustion, and heatstroke as the human body is exposed to high temperatures for a long time arealso warned.
The heat wave is predicted to last to June 4-5.
The Electricity of Vietnam (EVN) reported that severe hot weather has resulted in increased power consumption.
Data from the NationalPower System Dispatch Centre shows that the national power load on May 31 was at the highest ever level with apeak capacity of 41,549 MW and a power output of 850.3 million kWh.
In the northern region and Hanoi, electricity consumption levels everyday standat 360 million kWh and 90 million kWh,respectively.
EVN advised agencies, production establishments and households to use electricity safely,economically and effectively./.