Authorities in St. Petersburg shut floodgates and navigation channels to fight potential flooding in the city early Sunday morning.
The two navigation channels and six water discharge sluices that provide water flow through the St. Petersburg Dam were shut at 2 and 3 a.m. respectively, the city's Emergencies Ministry said.
The ministry said at 9 a.m. Sunday that the threat of flooding was over, but that a storm warning for the city was still in place.
Weather experts had predicted that water levels at the mouth of St. Petersburg's Neva River could rise up to 194 centimeters from gale-force winds.
Flooding is registered in St. Petersburg when the water level rises above 160 cm as measured by a gauge at the city's Mining Institute.
At 9 a.m., the institute's recorded water level was 93 cm, the Emergencies Ministry said.