He joined the BBC Weather team in October 2000. Before that he studied Civil Engineering at university, dropping out two years into the course.
He then worked on a North Sea offshore oil rig for three years as a technician, before going back to university to study Environmental Geography.
“Jay had a gift for gentle clarity, making his forecasts for sometimes complex weather systems feel accessible and engaging,” his brother Matthew said.
“A keen skier, golfer and musician, Jay enjoyed travelling to pursue his sporting interests,” Matthew Wynne added.
“We will miss his wisdom, generosity and dry sense of humour.”
Wynne’s family confirmed the news of his death to BBC News.