The Met Office has issued a flash-yellow weather warning for most parts of the UK today, including in Ceredigion.
The weather forecasters have said that a few places may see thunderstorms that lead to flooding and disruptions.
It came with as little as two hour’s warning.
Ceredigion was set to be hit at 13:30, according to the forecasters, but parts of the county have already seen some flashes of lightning and thunder already.
The storm could potentially last until 5:30am tomorrow, the forecasters warn.
What to expect
The Met Office say that Ceredigion may experience some of the following:
- Flooding of homes and businesses could happen quickly, with damage to some buildings from floodwater, lightning strikes, hail or strong winds
- Where flooding or lightning strikes occur, there is a chance of delays and some cancellations to train and bus services
- Spray and sudden flooding could lead to difficult driving conditions and some road closures
- Some communities might become cut off if roads flood
- Power cuts might occur and other services to some homes and businesses could be lost
“Slow moving, heavy showers”
A statement on the forecaster’s site says the following:
“Slow-moving heavy showers and thunderstorms will break out across many parts of the UK on Tuesday afternoon.
“Some places will miss them, but where they do occur they will bring torrential downpours with 25 to 35 mm rain falling in an hour and perhaps 40 to 50 mm in 2 to 3 hours in one or two places.
“Lightning and hail will be additional hazards.
“These showers and thunderstorms will only slowly die out through the evening, but may persist across northwest England, southwest Scotland and perhaps eastern Northern Ireland into the early hours of Wednesday morning.”
What should I do?
The following guidance is given by the forecasters:
During the thunderstorm
- Telephone lines can conduct electricity so try to avoid using the landline, unless in an emergency
- If outside avoid water and find a low-lying open place that is a safe distance from trees, poles or metal objects
- Avoid activities such as golf, rod fishing or boating on a lake
- Be aware of metal objects that can conduct or attract lightning, including golf clubs, golf buggies, fishing rods, umbrellas, motorbikes, bicycles, wheelchairs, mobility scooters, pushchairs, wire fencing and rails. If you are in a tent, try to stay away from the metal poles
- If you find yourself in an exposed location it may be advisable to squat close to the ground, with hands on knees and with head tucked between them. Try to touch as little of the ground with your body as possible, do not lie down on the ground
- If you feel your hair stand on end, drop to the above position immediately
After the thunderstorm
- Avoid downed power lines or broken cables
- If someone is struck by lightning, they often suffer severe burns. The strike also affects the heart, so check if they have a pulse.
Driving in a thunderstorm
- If you are caught out in thunder and lightning it is advised that you wind up the windows and stay inside your car. This is because in the vast majority of cars with a metal roof and frame, the frame will act as a conductive Faraday cage, passing the current around the passengers inside and on to the ground.
- Soft-top convertibles, with their fabric roofs, are the most at risk and could catch fire if struck by lightning
- Be aware that current can travel through other parts of many modern cars, including GPS and radio systems. Cars with metal interior handles, foot pedals and steering wheels can also carry current
- Cars can be damaged both internally and externally by lightning strikes
- Thunderstorms can also bring a risk of sudden gusty winds, those most at risk would include cyclists, motorcyclists and high sided vehicles.
- Remember to give vulnerable road users including cyclists, motorcyclists and pedestrians more room than usual. They are more likely to be blown around by side winds – always keep a safe distance.
- Keep your speed down, lowering your speed will lower the distance you travel when buffeted around by the wind.