Torrential downpours from Cyclone Belal unleashed severe flash flooding in the Mauritius capital, Port Louis, on Monday with cars washed down streets and people seen escaping their submerged vehicles. The Mauritius weather service raised the alarm from class two to class three as the island nation braced for worse to come. Belal is expected to pass Mauritius at its closest point early on Tuesday. Belal barrelled into the Indian Ocean island of Réunion early on Monday bringing torrential rain and winds gusting up to 250 kilometres per hour. Many homes were left without electricity, tens of thou…