Wales' Transport Minister, Carl Sargeant, told us the Heads of the Valleys road is vital for people to access jobs, and for the economy to function properly.
The Deputy Minister for European Programmes, Alun Davies, said it is 'fundamental' infrastructure, which 'enables us to compete on the Welsh, UK, European and world stage.'
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The winds have eased already, but we'll see wintry flurries over the mountains and icy patches on the roads!
The Valleys is home to some of Wales' most successful entertainers and personalities.
The South Wales Valleys once produced coal, but now they're producing wind energy - with the biggest onshore windfarm in England and Wales.