Dallas , Texas ( CNN ) -- At least four tornadoes spawned by Tropical Depression Hermine touched down in and around Dallas , Texas , on Wednesday evening , knocking down walls and smashing vehicles . Sirens went off in downtown Dallas as one funnel cloud was spotted in Cockrell Hill southwest of downtown , according to CNN affiliate WFAA . One tornado was reported in Ellis County and three in Dallas County , according to CNN meteorologist Taylor Ward . Aerial footage from the area showed buildings in an industrial complex with walls knocked down and roofs blown off . The roof of a tractor-trailer truck in a parking lot was caved in by cement blocks blown from a nearby building . Are you there ? Send your photos , videos to iReport . A spokesman for the Dallas Fire Department said Wednesday night that damage seemed to be isolated to a warehouse district on Mockingbird Lane in the western part of the city . There was one serious injury , Jason Evans of the fire department said . A truck driver 's rig was picked up by the tornado , spun around and slammed into a warehouse . The driver was sitting in the cab of the truck when the front of the building collapsed on the truck . Further information on the driver and his injuries was not immediately available . CNN 's Ed Lavandera : Eyewitness to a torndado . Operations at Dallas ' Love Field airport were shut down temporarily as a tornado approached the field , according to Lynn Lunsford of the Federal Aviation Administration . Tower personnel were preparing to evacuate when the tornado turned away at the last minute , Lunsford said . `` Tornadoes are a common phenomenon on the eastern side of landfalling tropical systems due to increased turning of the winds with height or vertical wind shear , '' Ward said . Rescue workers across central and north Texas , meanwhile , plucked people stranded by fast-rising floodwater dumped by Hermine as it slogged northward . At least one motorist in Austin was missing . Texas Gov . Rick Perry directed the activation of state search-and-rescue capabilities , bringing in swift-water rescue teams , UH-60 Blackhawk helicopters and other resources . `` I urge all Texans to realize the dangers of crossing flooded roadways and respect the barricades put in place by officials to protect Texans ' lives , '' Perry said in a written statement . Forecasters had said most parts of central and eastern Texas and Oklahoma could receive 4 to 6 inches of rain , but the numbers for some parts of Texas were staggering . Before the bulk of the storm moved out of Texas , Georgetown had received 13.2 inches of rain Wednesday , according to the National Oceanic and Atmospheric Administration 's Hydrometeorological Center . Cedar Park had received 12.9 inches ; Anderson Mill , 12.7 inches ; Killeen , 11.6 inches ; and Austin , 11.4 inches . Fort Worth had recorded 6.8 inches of rain , San Antonio , 6.7 inches and Houston , 4.4 inches . Aerial images showed scores of flooded streets and some rescues in Dallas . Portions of Austin had endured 15 inches of rain , and a middle-age motorist was missing after her car was washed away , Emergency Management spokeswoman Reyne Telles said . The car was found . Thirty-two roads were closed , and an engineer from the watershed department said this could be a 250-year event , Telles told CNN . `` I have n't seen anything like this happen here before , '' said an employee at a County Line BBQ location near Bull Creek . `` One of the boat docks washed away , and there are boats and cars stranded in the river . '' The restaurant was closed Wednesday but may reopen Thursday . The employee asked not to be identified . As of 5 p.m . ET , Hermine was about 135 miles ( 215 kilometers ) southwest of Oklahoma City . It had maximum sustained winds of 25 mph ( 40 kph ) and was moving at 12 mph ( 19 kph ) . By late afternoon , radar showed the rain was centered on eastern Oklahoma , with a line extending down to the Mexican border in eastern Texas . `` Additional rainfall amounts of 3 to 6 Inches with localized higher amounts can be expected through Thursday from eastern Texas and Oklahoma into Missouri and Arkansas , '' the National Hurricane Center said . Flash flood or flood warnings were in effect for much of those states . Meanwhile , newly formed Tropical Storm Igor was bringing `` squally '' weather to the Cape Verde Islands on Wednesday , the National Hurricane Center said . Track Tropical Storm Igor . As of 4 p.m . ET , the center of Igor was about 75 miles ( 120 kilometers ) south-southwest of Praia in the Cape Verde Islands . It had maximum sustained winds of 45 mph ( 72 kph ) and was moving west at 6 mph ( 9 kph ) . The storm is expected to slowly strengthen over the next 48 hours , with a slight turn to the west-northwest and an increase in forward speed . A tropical storm watch was in effect for the southern Cape Verde Islands , including Maio , Sao Tiago , Fogo and Brava . Tropical storm conditions were possible in those locations in 12 to 24 hours , forecasters said . Tropical storm-force winds extended about 50 miles from Igor 's center . Forecast maps show Igor becoming a Category 2 hurricane early next week over the open Atlantic . CNN 's Sean Morris contributed to this report .
NEW : Truck driver seriously hurt when rig picked up . Female motorist missing in Austin , Texas . Rescue crews busy in Dallas , Fort Worth . Comment: