sees a short wet season from March to May and another one from late August to October, and a dry season elsewhere in the year. Night-time temperatures are around in summer. The region of South Texas includes the semi-arid ranch country and the wetter Rio Grande Valley. Considered to be the southernmost tip of the American Great Plains region, the inland region has rainfall similar to that of the Northern Plains. The coastal areas are warm most of the year due to currents of the Gulf of Mexico, but can get cold in winter if a strong front comes in, occasionally causing snow at sea level. Rain in the coastal region is more abundant than in the inland region, and subtropical forests line the Rio Grande. Inland, where it is drier, ranches dominate the landscape, characterized by thick, spiny brush and grasslands. The winters in the inland region are cooler and drier, as Arctic air can make it into the region, but snow is rare due to the lack of humidity. Summers are for the most part hot and dry, but at times can be humid if winds come off the warmer Gulf of Mexico. Tornadoes can occur in this region, but less frequently than in other parts of the state. Hurricanes are the most dangerous weather systems to affect South Texas. Hurricane season is between June and November. However, the Texas coast gets affected usually between August and September, when systems sporadically organize in the southern Gulf around the Bay of Campeche or western Caribbean and the latter months forming off the coast of Africa. Droughts- Although South Texas summers generally see rainfall in summer months, some years the lack of rain is persistent and leads to water shortages; lake levels drop significantly and lead to municipal water restrictions. In the summer of 2011, numerous records were set. On August 28, 2011, most of South Texas had temperatures reaching 110 °F, breaking many cities' record highs. Furthermore, 95% of the state faced an extreme or exceptional drought, according to the office of the Texas state climatologist. These drought conditions led to a string of dangerous wildfires across the state, and the enforcement of burn bans in 250 of the 254 counties in Texas. Tornadoes do occur in this part of the state, but not as frequently as other parts. They approach, usually from the northwest to southeast, as a