." >> it almost looks like molten steel. can you feel the heat from there or is it just wind? >> reporter: just wind at this point. isolated hot spots. if you were to scan the facade of the building, which extends for a good city block, that's the only area i can see red. as the sun comes up we might be able to see smoke, get a better sense of what's going on inside. that's the only area we've seen flare up and from covering fires, when they flare up, the fire department, it's not their first rodeo, lots of water on it. look i said, i see no reason why that or any of the other hot spots flare up, anything bigger than ha they are now, considering that there is a large perimeter that the fire department has put around this structure and the resources that they are committing to this in terms of the firehoses. >> bob redell in mission bay. >> take a look at the difference between yesterday and today. on your left, a live look of what remains of the apartment building. on your right, that is chopper video shot last night as the crews tried to get a handle on the flames. >> "today