Thursday, May 7, 2026

May 06, 2026

The Technology Behind Every Tornado Warning: How Doppler Radar Works

Every tornado warning on your phone starts with a meteorologist seeing something specific on a radar display. Here's exactly what they're looking at — and how the technology behind it was built.

→ The one thing conventional radar couldn't see that got people killed for decades

→ What a "velocity couplet" looks like — and why it's visible before the tornado touches down

→ The upgrade that lets radar confirm a tornado is on the ground without anyone seeing it

→ What those colors on your weather app actually mean

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Before NEXRAD: average tornado warning lead time was zero. After: 13 minutes. Here's the technology that made the difference.

See how radar makes tornado warnings possible →