when the pressure drops dramatically and they rapidly intensify, with east coast storms we measure the pressure in millibars. so when the pressure drops 24 millibars in 24 hours, it s bombing out. it s exploding in growth. we could see twice that. here is the problem, though, until this area of low pressure off the coast of georgia forms, we just don t know the track. the energy for this is still dropping out of central rockies. so that will be tomorrow. we re going to know a lot more. we ve been watching this for some time, and that s why we have winter storm watches from eastern north carolina up to coastal maine. there s a number of things we know, a number of factors. we know it s cold enough, there will be moisture, we know a storm will develop, we know it will produce some snow. what we do not know is the track. so as this storm moves up, again, it will form tomorrow. we ll know much more, but it s not until saturday that it goes through that bombing process and really starts to