Air passengers are facing the risk of further disruption from volcanic ash, the Scottish government has said.
High levels of ash from an Icelandic volcano will cover parts of Scotland on Sunday and the whole of the UK on Monday, according to Met Office advice.
Transport Minister Stewart Stevenson said passengers were advised to check flight details with airlines before travelling to the airport.
He added the situation was "fluid" but safety was paramount.
"High levels of volcanic activity in Iceland and prevailing weather conditions mean that Scotland is once again facing disruption as aviation authorities consider appropriate steps to protect the travelling public," Mr Stevenson said.
The Department of Transport said on Saturday that five-day ash prediction charts would be made available on the Met Office website.
Previous forecasts were only given for the following 18 hours.
Mr Stevenson welcomed the decision to publish the five-day prediction charts.
But he called for further action to clarify advice to passengers, following the cancellation of BA flights from Heathrow to Scotland on Friday.
According to reports, some passengers claimed they had been ‘misled’ that the reason was due disruption from volcanic ash.
Mr Stevenson said: "As important is that airlines are consistent in the way that they report advice and use it to inform operational decisions to avoid unnecessary and unhelpful confusion.
"I have today written to BA Chief Executive Willie Walsh to convey the frustration of passengers and to urge the airline to engage with the CAA, Nats and the Met Office to ensure there is consistent advice and action across the industry."
Nats, the UK’s air traffic services provider, will announce any airspace restrictions if they become necessary.
A spokesman for BAA, which operates Glasgow, Edinburgh and Aberdeen airports in Scotland, welcomed the new five-day forecasts.
He added: "It’s good to have information in advance but we are acutely aware that things can change quickly."
This article is from the BBC News website. © British Broadcasting Corporation, The BBC is not responsible for the content of external internet sites.