St. Elmo's fire - A bright electric discharge that is projected from objects when they are in a strong electric field, such as occurs during a thunderstorm. This discharge can cause a ship's mast or airplane wings to have a greenish or bluish glow.

Air Mass Thunderstorm - Generally, a thunderstorm not associated with a front or other type of synoptic-scale forcing mechanism. Air mass thunderstorms typically are associated with warm, humid air in the summer months; they develop during the afternoon in response to solar heating, and typically have a short lifespan. They are less likely to be severe than other types of thunderstorms, but they are still capable of producing gusty winds, brief heavy rain, and (in extreme cases) hail over 3/4 inch in diameter.

Cold Air Advection - Cold air advection occurs when the wind blows from a region of cold air to a region where the air is warmer. This results in the transport of cold air by the wind. An area experiencing cold air advection can expect falling temperatures.

Fulgurites - Fulgurites are glassy, root-like tubes formed when a lightning stroke terminates in a dry sandy soil. When the lightning bolt strikes the sand, it heats it to around 50,000 degrees Fahrenheit. This melts the sand and gives it a dark glasslike appearance. The diameter of a fulgurite is typically between 1 and 2 inches, while the length can reach up to 5 feet.

Microscale - Microscale meteorology is the study of small and/or short-lived atmospheric phenomenon. This study of small-scale weather systems includes tornadoes, rainbows, and thunderstorm updrafts and downdrafts.

Fulgurites - Fulgurites are glassy, root-like tubes formed when a lightning stroke terminates in a dry sandy soil. When the lightning bolt strikes the sand, it heats it to around 50,000 degrees Fahrenheit. This melts the sand and gives it a dark glasslike appearance. The diameter of a fulgurite is typically between 1 and 2 inches, while the length can reach up to 5 feet.

Fog - Typically fog is composed of water droplets suspended in the air near the Earth's surface. When bitter cold temperatures are present, fog is composed of ice crystals instead of water droplets, and is called ice fog. Both types of fog reduce visibility at the surface.