"Cyclone formation" refers to the process in which a cyclone, a large-scale weather system characterized by swirling winds and intense atmospheric pressure, starts to develop. Full definition
The US CLIVAR Hurricane Working Group was formed in January of 2011 to coordinate efforts to produce a set of model experiments designed to improve understanding of the variability of tropical cyclone formation in climate models. (usclivar.org)
Our three reliable computer models for forecasting tropical cyclone genesis — the GFS, European, and UKMET models — have not been hinting at any December tropical cyclone formation in any of their recent runs. (wunderground.com)
The paper notes the potential impact of vertical wind shear, which inhibits cyclone formation; data suggests a decrease in wind shear in the tropics and an increase at higher latitudes. (sciencedaily.com)