Melting snow and storms during the week swelled rivers around the country, and a state of flood readiness has been announced for the Orlice river, in the north, and Dyje river in the southeast. Low-level warnings issued throughout the week still apply to 27 other rivers around the country. Nonetheless the number of warnings has slowly declined from 34 last Tuesday. Dams have been opened in several places to lower the levels of the reservoirs. Flooding is the most common natural disaster that the Czech Republic faces. Parts of Northern Moravia are still recovering from the last serious inundation, which struck in June of 2009.