System and methods for determining zones where atmospheric conditions are such that icing may occur may include receiving temperature profile data and air vapor density profile data. One or more regions indicative of conditions for supercooled droplets may be determined based on the received temperature profile data and air vapor density profile data. Data indicative of the determined one or more regions indicative of conditions for supercooled droplets may be outputted. In some implementations, the outputted data may include a visual diagram of the one or more regions, a notification, or an alert. Knowledge of such regions of conditions for supercooled droplets may assist in the avoidance or prevention of icing of components or surfaces, such as an airfoil, control surface, etc. of an aircraft, a power line, a mountainside, etc.
STATEMENT OF GOVERNMENT INTEREST
 The United States Government claims certain rights in this invention pursuant to Contract No. DE-AC02-06CH1 1357 between the United States Department of Energy and UChicago Argonne, LLC representing Argonne National Laboratory. The United States Government also claims certain rights in this invention pursuant to research sponsored by the Army Research Lab, ANL Cost Codes 167-0911500 and 167-4991300.