The UK is experiencing a harsh winter, with temperatures plunging as low as -20C in some regions amid ongoing flooding. Yellow weather warnings for ice have been issued, while an amber cold health alert signals increased risks, especially for vulnerable populations. Disruptions in travel, including delays and road closures, continue as the country grapples with aftereffects of heavy snowfall. Forecasters predict frost and more cold temperatures in the coming days, raising concerns about health and safety as communities deal with extensive flooding.