This information helps forecasters “train” for the next event, which may occur only a few minutes later. SKYWARN® Spotters also make themselves available to be contacted by the NWS to inquire about the conditions which occurred during a storm. In essence, the weather information provided by Spotters help motivate action by the people in the path of a potentially dangerous storm to take action to protect themselves and their property. These “ground-truth” reports made by trained Spotters give credibility to the warnings issued by the NWS. Change the warning or advisory type (upgrade or downgrade based on the report).
The information provided by Spotters can be used by NWS meteorologists to help decide to: During life-threatening weather, these real-time reports provided by Spotters can help protect life and property. Spotters who observe significant weather relay the information to their local NWS office or appropriate local authority based on the hazard observed. SKYWARN® Weather Spotters play a crucial role in their communities and are often part of the NWS warning process. However, we are always seeking additional “eyes on the ground” especially in rural communities and open country.Īdditional details can be found on the National SKYWARN® Webpage. The NWS in Tucson, AZ has hundreds of SKYWARN® spotters in its County Warning and Forecast Area, which includes the counties of Cochise, Graham, Greenlee, Pima, SE Pinal and Santa Cruz. SKYWARN® storm spotters are volunteer citizens who form the nation's first line of defense against severe weather. Since the program’s inception, the information provided by SKYWARN® spotters, coupled with Doppler radar technology, improved satellite and other data, has enabled the NWS to issue more timely and accurate warnings for a variety of weather hazards. The NWS communicates these warnings to county Emergency Managers, who take appropriate action to help protect life and property of citizens in their jurisdiction.
In the event of observed severe weather, SKYWARN® Spotters contact their local NWS office, who use the information to issue warnings for severe thunderstorms, tornadoes, flash floods, and dust storms, or verify warnings already issued for these hazards. SKYWARN® was developed in the early 1970’s as a partnership between the National Weather Service (NWS), county Emergency Managers and the general public. In an average year, the United States experiences more than 10,000 severe thunderstorms, 5,000 floods and more than 1,000 tornadoes.
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