Mauritius and Rodrigues Island brace for damaging winds and torrential rains [JTWC]
Tropical Cyclone Herold has developed close to Madagascar and is expected to strengthen further in the coming days as it heads into the southern India Ocean.
Parts of Madagascar have already been hit by heavy rain, with Sambava in the northeast recording 95mm (3.7 inches) of rainfall on Friday.
The next three days could bring at least an additional 300mm (11.9 inches) to northeastern areas of the country.
Herold is currently located some 800 kilometres (497 miles) to the northwest of Port Louis in Mauritius. It has sustained winds or about 110kmph (68mph) and gusts nearer 140kmph (87mph).
The system is now intensifying explosively, with the winds forecast to reach 195kmph