Black Sea which are largely responsible for regional precipitation inputs and influence Mediterranean Sea Surface Temperatures (SST's). The relative strength of these systems also limits the amount of cold air arriving from northern regions during winter. Other influencing factors include the regional topography, as depressions and storms systems arriving from the Mediterranean are funneled through the low land around the Bosphorus, Pontic and Caucasus mountain ranges acting as wave guides, limiting the speed and paths of cyclones passing through the region. There are some islands in the Black sea that belong to Bulgaria, Romania, Turkey, and Ukraine: The Black Sea is connected
Black Mountain (range) appearance of its profile from Cwm Tawe to the south. Black Mountain (range) The Black Mountain () is a mountain range in South and West Wales, straddling the county boundary between Carmarthenshire and Brecknockshire (the latter currently administered as part of the unitary authority of Powys) and forming the westernmost range of the Brecon Beacons National Park. Its highest point is Fan Brycheiniog at 802 metres or 2,631 ft. The Black Mountain also forms a part of the Fforest Fawr Geopark. The Black Mountain should not be confused with the Black Mountains in the east of the National Park, nor