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The Guardian - US
The Guardian - US
World
Stephen Starr

Hello from the outside: heat domes impeding radio and other signals in US midwest

A close of a person’s hand on the radio in car
Climate change could also play a role in a potential growth in communications interference resulting from tropospheric ducting. Photograph: Creative Images Lab/Getty Images

It was 3am in north-east Indiana’s Huntington county when the outdoor emergency alarm went off on 1 July.

The only issue? There wasn’t a storm, tornado or any other emergency weather event forecast or present anywhere for hundreds of miles.

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