An Analysis of Subdaily Severe Thunderstorm Probabilities for the United States Authors: Makenzie J. Krocak and Harold E. Brooks
Chart I. Tracks of Centers of Anticyclones, December, 1924. (Inset) Departure of Monthly Mean Pressure from Normal
Chart II. Tracks of Centers of Cyclones, December, 1924. (Inset) Change in Mean Pressure from Preceding Month