chaseit
Chaseit features#chaseit#nowcasting

The Radar page

At a glance

Live UK composite radar with cell tracking, velocity-couplet flags, and chase-target overlays. Built for nowcasting, not meteorology homework.

Deep dive

radar pulls tiles from:

  • UK NetWeather composite for reflectivity.
  • Met Office DataHub where available for velocity (dual-pol CC/ZDR pending integration).
  • Our own SOS cell-tracking algorithm for mesocyclone flags.

Cells with persistent >45 dBZ cores > 3 volumes are tracked and labelled with motion vectors. A velocity couplet exceeding gate-to-gate thresholds raises a TVS flag on the map.

Overlays you can toggle: active chase targets, archived tornado reports, SAR pass footprints from sar.