– The branch of the jet stream that is found in the lower latitudes.

A highly organized thunderstorm with a rotating updraft, known as a mesocyclone. It poses an inordinately high threat to life and property. Often produces large hail, strong winds, and tornadoes.

– water that stays in liquid form if undisturbed even though it has been cooled to a temperature below its normal freezing point.

– The wind speed obtained by averaging the observed values over a one minute period.

– Ocean waves of regular and longer duration than wind waves.

– Towering Cumulus

– a measure of the warmth or coldness of an object or substance with reference to a standard value.