GUWAHATI: The Met office here has warned that there could be heavy rainfall in parts of West Assam and Meghalaya on Wednesday under the impact of cyclone Yaas in the Bay of Bengal. The Regional Meteorological Centre (RMC) of the India Meteorological Department has issued an ‘orange’ warning for Assam and Meghalaya, asking the two states to be prepared to face some impact of the cyclone. The RMC here on Tuesday afternoon issued forecasts of light to moderate rainfall at most places with heavy to very heavy rain at isolated places in the two states. Thunderstorms, accompanied by lightning, at isolated places have also been predicted in Assam and Meghalaya.