Tropical Disturbance-An unorganized area of thunderstorms in the Tropics that maintains itself for 24 hours. It is the first step in hurricane development.
Tropical Depression-A mass of thunderstorms with a weak cyclonic circulation in the Tropics with winds less than 39 mph.
Hurricane-A large, violent storm with a pronounced rotary circulation of thunderstorms and sometimes a visible eye. Winds greater than 74 mph with storm surges of several feet.
Storm Surge-A rapid rise in ocean height above storm waves as a hurricane comes ashore. More people are killed by this element than wind in a hurricane.
Tropical Storm Watch-An alert status that tropical storm conditions may threaten an area within 48 hours.
Tropical Storm Warning-A heightened alert status that tropical storm conditions are imminent within an area in less than 36 hours. Sustained winds of 55 to 73 mph can be expected.
Gale Warning-Marine warning of winds 39 mph or greater.
Hurricane Watch-Hurricane conditions are expected within 36-48 hours. Viewers should continuously monitor KPLC for the latest bulletins, warnings and instructions.
Hurricane Warning-An alert status in which hurricane conditions are forecasted to strike an area within 36 hours. Winds of greater than 73 mph and life threatening tidal flooding usually occur with hurricanes.