Abstract: lobal relative angular momentum and the first time derivative are used to explain nearly an order of magnitude of the variability in 1994?2013 U.S. boreal spring tornado occurrence. When plotted in a phase space, the global ...

Abstract: he severe 2013/14 winter (December?March) in the Midwest was dominated by a persistent atmospheric circulation pattern anchored to a North Pacific Ocean that was much warmer than average. Strong teleconnection magnitudes ...