A second cold wave with heavy snow has gripped Bulgaria Sunday, the day of the visit of US Secretary of State Hilary Clinton.
US Department of State officers going to Bulgaria have already revealed they have prepared for heavy winter conditions.
After a few warmer days, when the temperatures in capital Sofia rose well above zero and a heavy rain started falling Saturday evening, Sunday Sofia has woken up to heavy snow Sunday.
Traffic is obstructed as cleaning firms are struggling to cope with the situation.
Bulgaria's national weather service has announced code orange for the southern regions of Smolyan, Kardzhali, and Veliko Tarnovo, Ruse, Targovishte, Razgrad, Shumen and Silistra in the north.
There precipitation is expected to be heavier, with rain dominating in the south and snow in the north.
Highs in Sofia are not expected to rise above 2 degrees C, while lows will not be extreme either, around -6 C.
Snowfall is set to continue Monday and Tuesday, with temperatures falling. Wednesday and Thursday lows will be around -15 C.
Sunday the national weather services have warned that extensive rainfall in southern Bulgaria might lead to local overflowing of rivers and dams.
Heavier snowfall and harsher cold, as usual, is expected in northern Bulgaria.