- 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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