In 2012 the NWS Central Region identified five offices to begin the impact based convective warning experimental product to better communicate threats to partners and constituents. The “Impacts-Based Warnings” demonstration was well received and the demonstration was expanded to all 38 Central Region offices in the spring of 2013. The positive feedback is supporting a continued expansion in the spring of 2015 to include 19 Southern Region offices, 7 in Eastern Region and 3 in Western Region.
Any effort to change core convective warning products must operate under tight restrictions, including time constraints and procedural limitations. In addition, any radical changes to the convective warning products would demand a rather large adjustment by core customers and partners, and a massive public education effort. Therefore, this demonstration will work within the boundaries of the well-established weather enterprise infrastructure to ensure easy absorption into mass communication channels.
The demonstration will build upon pre-existing Central Region efforts to employ “event tags” at the bottom of each warning for severe thunderstorm and tornado warnings. The additional tornado event tags will have tornado threat information attached to them as a quick means to provide users and partners with potential high impact risk signals that prompt faster risk assessment and protective action.
Provide additional valuable information to media and Emergency Managers
Facilitate improved public response and decision making
Better meet societal needs in the most life-threatening weather events
Optimize the convective warning system within the existing structure
Motivate proper response to warnings by distinguishing situational urgency
Realign the warning message in terms of societal impacts
Communicate recommended actions & precautions more precisely
Evaluate ability to distinguish between low impact and high impact events
Warnings enhanced by:
Improving communication of critical information
Making it easier to quickly identify the most valuable information
Enabling users to prioritize the key warnings in your area of interest
Providing different levels of risk within the same product
Enabling the NWS to express a confidence level of potential impacts
Highlighting storms that are particularly dangerous
Allowing users and vendors to develop apps and tools for the public and broadcast meteorologists to better communicate areas of increased risk
This project will be evaluated by:
Social science research groups and National Weather Service
Using focus groups and surveys
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