Heather is well-known for her "hello there" catchphrase
Weather presenter Heather Reid is to leave BBC Scotland after 15 years working on its flagship TV news programme Reporting Scotland.
The presenter, who became popularly known as Heather the weather, is to take up other opportunities in science and education.
They will include various projects with Learning and Teaching Scotland.
Atholl Duncan, BBC Scotland's head of news and current affairs, said Heather had become a "national institution".
He added: "The Scottish weather forecasts may never be the same again.
"She will be greatly missed by the Reporting Scotland team. We all wish her well with her new challenges in science and education."
Over the past few years, Heather - whose on-screen catchphrase was "hello there!" - has split her time between working at BBC Scotland and working as a science communicator.
She is also a Trustee at Glasgow Science Centre, and received an OBE for services to physics in 2006.
She said: "I have thoroughly enjoyed my time with Reporting Scotland and will greatly miss my BBC Scotland colleagues.
"However, over the past few years, I have found it increasingly difficult to balance my science education work with my role as BBC Scotland weather presenter. 2010 brings exciting and challenging times in education and I'm looking forward to becoming more involved."
Heather was born in Paisley and attended Edinburgh University where she received an honours degree in physics.
She then studied for a masters degree in image processing at Edinburgh's Meteorology department and joined the Met Office in 1993.
After a spell in research she transferred to the forecast division and became BBC Scotland's weather forecaster in 1994.
Her last weather broadcast on Reporting Scotland will be Tuesday 22 December.