LONDON – In an unprecedented move, the Department for Meteorological Overreaction (DfMO) has upgraded the nation's weather status to 'Amber Alert: Potentially Requires a Light Cardigan' as temperatures across England and Wales are forecast to dip perilously close to single digits Celsius.

Speaking from an undisclosed bunker beneath Whitehall, Chief Thermostat Regulator, Dr. Penelope Witherbottom, warned, 'We are entering a phase of meteorological instability previously only theorized in particularly damp novels. Our models indicate a 73.4% probability of needing to wear socks with sandals, a societal collapse event we are ill-equipped to handle.'

The public has been advised to remain indoors, or at least within a 5-meter radius of a functioning kettle. Supermarkets reported immediate shortages of luxury hot water bottles and 'comfortably thick' knitwear, with one shopper in Cardiff reportedly fighting a badger for the last packet of digestives.

'This isn't just about cold,' explained Professor Alistair Finch, Head of Existential Weather Dread at the University of Greater Anguish. 'It's about the psychological impact of knowing it's not quite warm enough for a picnic, but also not cold enough for proper snow. It's a liminal temperature, a purgatory of the thermostat, and frankly, it's terrifying.'

The DfMO confirmed emergency services are on standby for any reports of 'mild shivering' or 'a general sense of being a bit nippy.'