Changes coming to tornado and thunderstorm warnings - 14 News, WFIE, Evansville, Henderson, Owensboro

Changes coming to tornado and thunderstorm warnings

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It's no joke.  Starting April 1st, the National Weather Service will change the way they word Tornado and Severe Thunderstorm Warnings.
 
All offices within the NWS Central Region, including the four that issue warnings for the tri-state, will start using "enhanced wording".
 
These are the changes the National Weather Service is making:
 
- A "TORNADO...POSSIBLE" tag will be used in Severe Thunderstorm Warnings primarily with squall lines, which can produce short-lived tornadoes.  These often show up on radar at nearly the same time that they occur on the ground, so it is believed that highlighting this fact in the Severe Thunderstorm Warnings that typically precede them will heighten the awareness and action of people in the storm's path.

- Most Tornado Warnings will continue to be issued based on radar, so will contain the "TORNADO...RADAR INDICATED" tag.  When there is confirmation that a tornado has touched down, follow-up statements will then include the "TORNADO...OBSERVED" tag line.  

- The "TORNADO DAMAGE THREAT..." tag lines will be rarely used.  Basically, these are reserved for confirmed supercell tornadoes (as opposed to the squall-line version) that have reliable real-time visual confirmation for (e.g., live video, etc.)  In other words, the Henryville tornado would be the type of tornado in which this tag line would be included.  

These changes stem from what weather service officials believe was a successful test conducted in eastern Kansas and most of Missouri last year. 

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