Clusters of destructive storms are rolling across south-central and South Texas tonight. Not only will a few tornadoes be possible, but large hail and damaging wind gusts will be common. Even flash flooding is becoming a growing concern across South Texas. A Tornado Watch is in place for south-central and deep South Texas, including Austin, San Antonio, Corpus Christi and Victoria. Clusters of fierce storms are chugging across central and South Texas tonight. The storms are feeding off a clash between cool pocket of upper-level energy swirling across the Lone Star State and warm, moist Gulf of Mexico air being driven north throughout Texas. These and additional storms will roll all the way to the Texas Gulf Coast early on Friday. The storms have a long history of producing tornadoes, large hail and destructive wind gusts since their inception during the wee-hours of this morning. In addition to golf ball size hail and damaging wind gusts up to 70 mph, intense lightning seen on Earth Networks Total Lightning Network will be common. Houston, Victoria, Corpus Christi, College Station, Austin and Waco, Texas, are all in the path of these dangerous thunderstorms tonight and early Friday. The South Texas severe weather danger zone also features a heightened risk for tornadoes. Weak low pressure organizing across southeastern Texas is interacting with a cool pocket swirling at high altitudes across the central Lone Star State tonight. Thusly, twisting in the lowest part of the atmosphere is being maximized. Though the rainfall will be welcomed news for West Texas, the same cannot be said for South Texas. A large swath of 2 to 4 inches will fall along the Interstate 10 and 35 corridors through Friday, with more than 6 inches possible. Flash Flood Watches stretch from the Texas and New Mexico border to central Texas. San Antonio, San Angelo, Midland-Odessa, and Austin, Texas, are all included. Remember, if you approach a flooded roadway, it is best to, "Turn Around, Don`t Drown!" Even though the excess rain water will replenish reservoirs across Texas depleted by an epic long-term drought, too much precipitation is becoming a growing concern since the start of 2012. Houston is running 6.78 inches above its normal 14.77 inches of rain, with Austin 7.41 inches above the norm. Even San Antonio has recorded a surplus of 6.88 inches. All this wet and stormy weather will give way to a drier and sunnier weekend under the influence of high pressure building into the central and southern Plains. Be sure to keep WeatherBug active to receive the latest weather in your neighborhood and get the latest updates anywhere on Twitter . What do you think of this story? Click here for comments or suggestions.