LB, serious deviation but you are wrong.
1963, Stradishall, Met lecture on a Friday morning. Asked if any of us planned to go home that weekend. He then told us to ask our course commander for an early stack as Norfolk would be in deep snow by tea time. It was.
1969, Coningsby, beautiful day, 96m miles viz, no wind, definitely no coats weather. Enter Met man for morning prayers, he was wearing coat, scarf, hat, gloves and announced to the sceptical audience that there would be no flying that day. It was going to be deep in snow. It was. Indeed it started snowing before the end of the brief.
Mind you, he cheated, he had looked out the window before coming across to the brief.