If two air masses with large differences in air pressure are near one another what weather condition will most likely exist between the two air masses?

When two air masses with large differences in air pressure are near one another, it is likely that a front will form. This can lead to the development of various weather conditions, such as thunderstorms, heavy rainfall, strong winds, or even tornadoes, depending on the specific characteristics of the air masses involved. The movement of the front and the interaction between the air masses will determine the exact weather conditions that occur in the region between them.