Hook echo: first tornado detected by radar

Weather BulletinUsing a World War II-era aviation radar system, Illinois State Water Survey electrical engineer Donald Staggs makes the first radar-based detection of a nearby tornado, part of a tornado outbreak striking in and near Champaign, Illinois. The “hook echo” is the distinctive radar signature of a rapidly evolving small-scale cyclone developing from the larger radar signature of its parent thunderstorm. Continued observations confirm that this is the “radar shape” of a forming tornado, an invaluable piece of information for forecasters on the forefront of severe weather prediction.

The Quatermass Experiment: Contact Has Been Established

The Quatermass ExperimentThe BBC airs the first episode of Nigel Kneale’s trend-setting science fiction series The Quatermass Experiment, starring Reginald Tate as Prof. Bernard Quatermass. Broadcast as a live play with minimal footage from other sources played back during air, this is also one of the earliest BBC drama productions archived on film, and one of the final drama productions to use the BBC’s vintage 1930s Alexandra Palace facilities.

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The Quatermess Experiment: Persons Reported Missing

The Quatermass ExperimentThe BBC airs the second episode of Nigel Kneale’s trend-setting science fiction series The Quatermass Experiment, starring Reginald Tate as Prof. Bernard Quatermass. Broadcast as a live play with minimal footage from other sources played back during air, this is one of the earliest BBC drama productions archived on film, though BBC technicians opt not to preserve any further episodes of this series.

More about The Quatermass Experiment in the LogBook