Weather tracker: cyclone warning in Australia while Finland freezes in -16C lows

Meanwhile, South Sudan has ordered schools to shut amid extreme heatwave

A cyclone warning has been issued in northern Australia for coastal communities from the island of Groote Eylandt to the Northern Territory/Queensland border. Tropical Cyclone Megan, which developed in the Gulf of Carpentaria on Saturday, has been declared a category 3 cyclone by the Australian Bureau of Meteorology. Megan is forecast to make landfall on Monday, but has already brought gale-force winds and heavy rainfall to some areas over the weekend. Groote Eylandt was cut off after more than 400mm of rain in just 24 hours on Sunday.

There is a chance that Megan could strengthen further into a category 4 storm before making landfall, with the potential for damaging wind gusts of up to 125km/h. Megan is the fifth named cyclone in Australian waters so far this season, which is below the average of about 10 by this stage of the year.