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Trelewis, Merthyr Tydfil

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Logo for Met Office National Severe Weather Warnings
Yellow Warning for Thunderstorms
Source: Met Office National Severe Weather Warnings
Start
9:00 AM
Saturday, June 7
End
6:00 PM
Saturday, June 7

Heavy showers and thunderstorms may lead to some disruption to transport and infrastructure. What to expect: Probably some damage to a few buildings and structures from lightning strikes There is a good chance driving conditions will be affected by spray, standing water and/or hail, leading to longer journey times by car and bus Delays to train services are possible Some short term loss of power and other services is likely Further details: Frequent heavy showers and thunderstorms are expected for much of Saturday before fading from the west during the mid to late afternoon. 10-15 mm of rain could fall in less than an hour, whilst some places could see 30-40 mm of rain over several hours from successive showers and thunderstorms. Frequent lightning, hail and strong, gusty winds will be additional hazards. What Should I Do? Consider if your location is at risk of flash flooding. If so, consider preparing a flood plan and an emergency flood kit. Give yourself the best chance of avoiding delays by checking road conditions if driving, or bus and train timetables, amending your travel plans if necessary. People cope better with power cuts when they have prepared for them in advance. It’s easy to do; consider gathering torches and batteries, a mobile phone power pack and other essential items. If you find yourself outside and hear thunder, protect yourself by finding a safe enclosed shelter (such as a car). Do not shelter under or near trees, or other structures which may be struck by lightning. If you are on an elevated area move to lower ground. Be prepared for weather warnings to change quickly: when a weather warning is issued, the Met Office recommends staying up to date with the weather forecast in your area.

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