Saffir-Simpson Scale - The scale that rates the strength of a hurricane based on its peak 1 minute sustained wind speeds. The scale goes from 1 to 5 with 5 being the strongest. When a tropical storm's wind speeds reach 74 mph or higher it becomes a category 1 hurricane. A category 5 hurricane has sustained winds of 157 mph or greater.

isodrosotherm - A line of equal dew point temperature. Isodrosotherms are typically drawn for surface dew points. They can give meteorologists a good read on where surface fronts are located since tightly packed isodrosotherms indicate a dew point gradient.

Turbulence - Any irregular or disturbed flow in the atmosphere caused by eddies and vertical air currents. Regions of the atmosphere that are characterized by turbulence will often be found in the vicinity of frontal boundaries. Thunderstorms produce the most severe turbulence due to the intense upward and downward vertical air currents that occur in the vicinity of them.

Blue Jet - An upper-level atmospheric electrical discharge, usually blue or bluish-white in color, that occur high above thunderstorms. Similar to sprites. This phenomenon is believed to connect the tops of thunderstorms with the ionosphere.

Pluie - This is the french word for rain. To say, "it is raining today" one would say, "Il pleut aujourd'hui."

Valley Breeze - A breeze that flows up a mountainside during the day. This upsloping breeze occurs due to the fact that the valley walls warm up faster than the higher terrain in the mountains. This makes the air in the valleys lighter than the air along the higher terrain of the mountains, making the air near the valley buoyant. The result is the upward breeze along the mountainsides during the day.

Hiver - Hiver is the French word for winter.