A rare weather phenomenon is affecting 26 regions across the United Kingdom, prompting the Met Office to issue a warning for snow and ice. The yellow alert is among several currently in effect for today and tomorrow, encompassing parts of northern England and Scotland. Anticipated snowfall ranges from 5cm in low-lying areas to up to 20cm in elevated terrain.
This weather advisory is valid until 2pm today, with the Met Office cautioning about possible vehicle strandings, expected train service delays, potential power outages, and risks of slips and falls. Additionally, the warning includes a forecast of “freezing rain” in the designated area, which could result in hazardous “black ice” patches. The public is reminded to exercise caution on roads and ensure their vehicles are equipped with essential supplies such as warm clothing, food, water, a blanket, a torch, and an in-car charger.
Freezing rain is described by the Met Office as an uncommon form of liquid precipitation that solidifies almost instantly upon contact with cold surfaces. The formation process involves snow turning into rain in warm air, then refreezing in colder air as supercooled droplets with sub-zero temperatures. When these droplets hit the sub-zero ground, they freeze rapidly, creating a transparent ice layer.
The National Weather Service in the United States explains that freezing rain can pose significant dangers, particularly on bridges, overpasses, and elevated roads, as they freeze quickly due to the cold air surroundings. Additionally, freezing rain can add weight rapidly to tree branches and power lines, potentially leading to breakages. The aviation sector is also cautioned about the extreme hazards freezing rain can present for aircraft.
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