rainfall from the south and east. unfortunately, natalie there is more wet weather in store. if this is indeed going to pan out to be a search and rescue operation, we're going to have to monitor this area for very very difficult weather conditions for any airplanes flying through for the search and recovery and also boats moving through the region as well. >> information from an international carrier pilot that not only can pilots go ascend or descend but they can do a 180, go completely the other way. but in this situation you just described there might not have been another way. >> we've been talking to some of these flight experts and pilots throughout the course of the evening, natalie, and they talk about the radar that is actually on the plane being so critical. of course there isn't radar at the middle of the ocean. the pilots depend on the radar that is actually on board their aircraft. i did some research and it does appear the radar on airplanes