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Weather & Forecasting · Recorded milestone

Doppler weather radar

Recorded year1992

Doppler radar networks such as NEXRAD give tornado warnings minutes ahead.

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Built on

RadarRecorded · 1935enables
National weather radar networkRecorded · 1957enables
Personal computerRecorded · 1975enables

Led to

Minute-by-minute rain alertsRecorded · 2012enables
Dual-polarisation radarRecorded · 2013enables
Rain radar satellite fleetForecast · ~2029enables
Deployable flood barriersForecast · ~2035enables

Sources & evidence

Additional source

Dataset updated 2026-10-18. This individual record has not been separately re-reviewed.