The Batanska River has overflowed its riverbed, Facebook users report.
According to the community center in Sopot, the road to the monument to the Sopot Revolutionary Committee is impassable for cars.
Heavy rainfall warnings are in effect today.
A red code is in effect for the Smolyan and Kardzhali districts. Amounts of over 60 liters per square meter are expected there.
An orange code is in effect in the districts of Ruse, Veliko Tarnovo, Gabrovo, Lovech, Plovdiv, Stara Zagora, Haskovo, Yambol and Burgas - around and over 45 liters per square meter.
For the areas with a yellow code - Sofia region, Plovdiv, Pazardzhik, Veliko Tarnovo, Sliven, Targovishte, Razgrad, Silistra, Dobrich, Varna and Burgas, rainfall amounts of up to 35 liters per square meter are expected.