A light wind has blown the smog away from Moscow, but smoke from forest fires is likely to return to the city soon, director of the HydroMetCenter weather monitoring agency Roman Vilfand told Interfax on Wednesday.

"A light wind is mixing air masses, pushing the smoke upwards and bringing relief to the city. But the situation has not become any better where fires are burning," Vilfand said.

"Forest fires have not disappeared and smoke will fill Moscow, which is in a high pressure zone now. Smoke is pressed down to the ground and stays there when an anticyclone arrives," the expert said.

"Rains, if they begin, will extinguish fires. The Emergency Situations Ministry is doing an enormous job to put fires out," Vilfand said.