site.btaCode Yellow Weather Warning Issued for 10 Regions in Western, Central Bulgaria

The National Institute of Meteorology and Hydrology (NIMH) has issued a Yellow Alert for heavy rain and thunderstorms in ten regions in Western and Central Bulgaria for May 9. The rainfall quantity is expected to reach 20-35 litres per sq m.
  
The NIMH's weekly weather forecast for the May 9-14 period says that heavy rain is highly probable in the West. The northeasterly wind will be moderate to strong in the East, which will have less rain in fewer locations.