Stephen F. Corfidi

TL;DR: In this paper, the main factors that affect the direction of propagation and overall movement of surface-based mesoscale convective systems (MCSs) are discussed, and an updated technique that may be used to forecast the short-term motion of MCS centroids based on these concepts is introduced.

TL;DR: In this paper, meteorological variables derived from sounding observations taken in the environment of quasi-linear MCSs were examined and a set of 186 soundings sampled from the beginning and mature stages of the mesoscale convective systems were categorized by their production of severe surface winds into weak, severe, and derecho-producing MCS.

TL;DR: The concept of elevated convection is used to describe convection where the constituent air parcels originate from a layer above the planetary boundary layer as mentioned in this paper, which can produce severe hail, damaging surface wind, and excessive rainfall in places well removed from strong surface-based instability.

TL;DR: A 5-yr climatology of elevated severe convective storms was constructed for 1983-87 east of the Rocky Mountains as mentioned in this paper, where potential cases were selected by finding severe storm reports on the cold side of surface fronts.

TL;DR: In this paper, a comparison of the 8 May 2009 derecho environment to that of other mesoscale convective systems (MCSs) that occurred in the central United States during a similar time of year was made.