“Roshydromet has issued a warning about fog in Moscow and the Moscow region.
Fog is expected at night and until morning, "RIA Novosti quotes Vilfand as saying.
He clarified that morning gusts of wind up to 17 m / s will dispel the fog.
According to the forecaster, the fog is caused by warm air masses from Asia Minor and the Mediterranean Sea.
Earlier, environmentalist and climatologist Alexander Shuvalov warned that thick fog can provoke environmental pollution if it lasts for more than two days.