The winter in Northern Cyprus is cool and rainy, particularly between December and February, with 60% of annual rainfall. These rains produce winter torrents that fill most of the rivers, which typically dry up as the year progresses. Snow has been known to fall on the Kyrenia Range, but seldom elsewhere in spite of low night temperatures. The short spring is characterised by unstable weather, occasional heavy storms and the "meltem", or westerly wind. Summer is hot and dry enough to turn low-lying lands on the island brown. Parts of the island experience the "Poyraz", a north-westerly wind, or the sirocco, a wind from Africa, which is dry and dusty. Summer is followed by a short, turbulent autumn.