A migratory anticyclone event during project GALE

A case study of a transitory anticyclone is conducted as part of the Genesis of Atlantic Lows Experiment (GALE) for the Intensive Observing Period (IOP) of 7-9 March 1986. The special GALE data networks were activated in anticipation of possible Appalachian cold air damming. Cold air damming did not occur and the purpose of the case study is to diagnose a nonevent so that processes associated with cold air damming can be better isolated. An important finding is that the configuration of the antecedent synoptic-scale flow is crucial in determining whether cold air damming will evolve and be sustained. -from Authors