>> all right. thanks very much. i want to bring in bill karins. how much warning did everybody have down there and what happened? what was the confluence of events that you were seeing and watching as you saw these tornadoes form? >> the sheriff led to it. you can see the storm formed right over the top of granbury where we saw the fatalities and worst of the damage was. from there the storm tracked toward cleburne. how much lead time did they have? 7:42 p.m. central time is when the tornado warning went off for the granbury area and when the sirens went off and tornado was coming down to the ground. all indications are that it came down over the top of granbury in the city limits there. it's a small town of 8,000 people. a beautiful lake that runs through it. that's when the tornado was reported.