The weather in Bulgaria on Wednesday is expected to remain unstable and variable, according to the National Institute of Meteorology and Hydrology (NIMH), with conditions shifting between sunshine, cloud cover, and localized thunderstorms throughout the day. The forecast indicates that atmospheric instability will be most pronounced in the western, central, and northeastern parts of the country after midday. In the morning hours, rain accompanied by thunderstorms is expected in the Danube Plain,