The blast came from a train used to carry molten metal at the Port Talbot site, Tata Steel says.
Jac Richards will hear his single Only Love played at the RawFfest festival in Cardiff this weekend.
Organisers say it is unsafe for the annual ride to take place, with wind gusts of 55mph forecast.
The World Snooker Championship second round continues at the Crucible in Sheffield - watch BBC Sport coverage.
Team details and match preview as Cardiff Blues meet Ospreys in a crucial Pro14 Judgement Day encounter at Principality Stadium.
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