The organization of spotters and the distribution of warning information typically lies with an emergency managment agency within the community. This agency could be a police or fire department, or often is an emergency management/service group (what people might still think of as civil defense groups). In Oklahoma these groups are called Civil Emergency Management Agencies, while in Arkansas they are the Office of Emergency Management.
SKYWARN is not a club or organization, however, in some areas where Emergency Management programs do not perform the function, people have organized SKYWARN groups that work independent of a parent government agency and feed valuable information to the National Weather Service. While this provides the radar meteorologist with much needed input, the circuit is not complete if the information does not reach those who can activate sirens or local broadcast systems.
SKYWARN spotters are not by definition "Storm Chasers". While their functions and methods are similar, the spotter stays close to home and usually has ties to a local agency. Storm chasers often cover hundreds of miles a day. The term Storm Chaser covers a wide variety of people. Some are meteorologists doing specific research or are gathering basic information (like video) for training and comparison to radar data. Others chase storms to provide live information for the media, and others simply do it as a hobby!
Storm Spotting and Storm Chasing can be exciting, but it is also dangerous and should not be done without proper training, experience and equipment.
The National Weather
Service in Tulsa conducts free Spotter Training classes at the request of emergency management agencies and spotter groups and it is highly recommended for those involved in Skywarn annually.