The General Directorate of Meteorology has issued warnings for a sharp drop in temperature across Turkey. A weather system coming from the Mediterranean will cause temperatures to fall by 8 degrees. Rain will first hit the Aegean region and Thrace. After that, heavy downpours are expected in the Marmara region and Istanbul. These cold and rainy conditions are predicted to last for one full week. Citizens are advised to prepare for the sudden change in weather. Local authorities are monitoring the potential for flooding.