Michael is roaring towards the Florida panhandle as a Category 4 hurricane The unexpected brute has grown swiftly into what could be one of the panhandle's worst hurricanes in memory With destructive wind, up to 30 centimetres of rain and a storm surge of up to four metres Florida officials say roughly 375,000 people up and down the Gulf Coast have been urged or ordered to evacuate Environment Canada says the storm is expected to weaken into a tropical storm after making landfall in Florida The agency says Michael is forecast to track south of Nova Scotia on Friday Forecaster's long-range models are calling for the possibility of heavy rainfall in parts of the province, depending on how close the system gets