"In the period 28 and 29 July, abnormally hot weather is expected in most of Primorye, in the daytime in the southern regions above 35 degrees, in the western and central regions - above 37 degrees," RIA Novosti reports.
In connection with the emergency warning received, rescuers recommend citizens suffering from cardiovascular diseases not to stay in the sun for a long time, tourists - to refrain from lighting an open fire.
Earlier, the scientific director of the Hydrometeorological Center Vilfand said that extremely hot weather is predicted in some Russian regions.