First system for the south Indian ocean.
Cyclone Ambali formed yesterday southwest of Diego Garcia, and is currently rapidly intensifying. So far, the storm has estimated winds of 100mph (160kph) with higher gusts, and the intensification phase isn't yet complete. The storm is likely to continue towards the southwest but rapidly weaken this weekend into early next week.
Land impacts are unlikely, but up to 100mm of rain could fall on St Brandon, and a 5% chance of tropical storm conditions in Mauritius.
There another system north or Madagascar likely to be name Belna probably this evening or tomorrow.