TorNet Temporal: Temporal Dual Pol NEXRAD Radar for Tornado Detection A large scale dataset of storm centered NEXRAD WSR 88D radar sequences for tornado detection and prediction, featuring 24 channel dual polarimetric data across variable length temporal sequences . Dataset Summary 24,862 storm events from NEXRAD Level II radar archives (2013 2022) 8 22 consecutive radar scans per event (~4 5 min cadence, ~45 90 min total; median 13 frames) 24 channels : 6 dual pol radar products x 4 elevation angles 128x128 spatial grid at 1km resolution, storm centered 3 categories : TOR (tornado), WRN (tornado warned but no tornado), NUL (null/no severe) 130 unique NEXRAD radar sites across CONUS Data Format Each event is stored as a compressed NumPy archive ( sequence.npz ) containing: Key Shape Type Description data (T, 24, 128, 128) float32 Radar volume sequence (T varies 8 22, median 13) scan times (T,) str UTC timestamps per frame center time scalar str Event center time lat scalar float64 Storm center latitude lon scalar float64 Storm center longitude radar scalar str NEXRAD site ICAO (e.g., KTLX) mag scalar int64 EF scale magnitude ( 1 if no tornado) label scalar int64 Binary label (1=tor…
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