
The Call06/23/2026, 09:37:39 AM
The Number That Turns a Scan Into a Warning
Inside a NWS tornado warning office, a senior meteorologist walks through the exact decision framework that turns a radar return into a warning — from Vrot thresholds and Tornado Vortex Signatures to the three-tier IBW tag system, Tornado Emergency criteria, documented failure modes, and what the next generation of probabilistic forecasting looks like.
0:00 / 21:10

