David Cameron told the Scottish Conservative Party conference in Edinburgh that a 'no vote' can mean further devolution and more power to the Scottish people.
"Let me be absolutely clear: a vote for 'no' is not a vote for 'no change'.
"We are committed to making devolution work better still.
"Not because we want to give Alex Salmond a consolation prize if Scotland votes No, but because it's the right thing to do.
"Giving the Scottish Parliament greater responsibility for raising more of the money it spends.
"So here's the re-cap: vote yes, that is total separation.
"Vote no, that can mean further devolution more power to the Scottish people and their Parliament, but with the crucial insurance policy that comes with being part of the UK."
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The Met Office have issued a warning for snow showers and icy strectches from Saturday evening until 10 am Monday
Kerrie Gosney brings you Saturday night's forecast
Severe gales possible for a time north of the border overnight. A cold, raw wind sets in Sunday. Showers turning wintry Monday & Tuesday.