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UK Braces for Thunderstorms and Hail!
4 May
Summary
- Thunderstorms and hail are forecast for southern England and Wales.
- Showers expected to subside overnight, turning chilly in the north.
- Met Office advises unplugging appliances and avoiding low-lying areas.

Thunderstorms and hail are anticipated across parts of the UK today, contrasting with earlier high temperatures. The Met Office forecasts wet conditions in northeast England and southern Scotland, with potential thunder and hail in southern England and Wales, accompanied by a humid feel for many.
As evening approaches, showers are expected to diminish, giving way to mainly dry conditions overnight. The northern regions may experience chilly weather, with the possibility of frost in rural areas.
Weather mapping services indicate a significant chance of thunderstorms across a broad area of southern England and Wales around 7pm. The Met Office has provided crucial safety guidance, recommending that people unplug non-essential electrical appliances before storms strike due to the risk of power surges.
Furthermore, individuals are advised to avoid underground or low-lying spaces like car parks, basements, and underpasses, as rapid flooding can occur. During a thunderstorm, using landline phones is discouraged except in emergencies, and outdoor activities such as golf or fishing should be avoided.
For those driving, the advice is to keep windows wound up and remain inside the car, as the vehicle's metal frame typically acts as a Faraday cage. However, soft-top convertibles are considered at higher risk of catching fire if struck by lightning. Awareness of how current can travel through modern car systems, including GPS and radio, is also recommended.