What does "PLE16SNB16" signify in weather reporting?

The correct answer indicates that "PLE16SNB16" is a coded weather report, utilizing the format typically seen in aviation or meteorological contexts. In this specific code:

• "PLE" refers to ice pellets.

• The "16" denotes the time or observation associated with this event, which in this case, is at one six (16:00 UTC).

• "SN" signifies that snow began at that same time, making it clear that after the ice pellets ceased, snowfall commenced.

• The second "B16" can be understood similarly, reinforcing the time reference.

This format succinctly conveys specific weather conditions and transitions. Therefore, it accurately reveals the weather phenomenon occurring at a designated hour, demonstrating its importance for pilots and those in air traffic control in ensuring safe flight operations. The other options do not accurately represent the elements found in this type of weather reporting code; instead, they might suggest temperature readings or general weather conditions which do not align with the coded message presented.