Outside, up to the north, lurked the trailing tower of the squall line, rippling in hot midafternoon sunlight and sucking hard for the adiabatic juice. Jerry had been sending them the full spectrum of regular updates: satellite overviews, the progress of the squall’s pseudo-cold front, SESAME’s wind-shear estimates, big bulging downpours of rain off the Dopplers. The front was gushing precip, dropping hail in big lemon-sized chunks, and blowing some impressive gust fronts. But there were no spikes.