North Wales thunder alert extended with fresh storm warnings and 80mm of rain
The Met Office has extended an alert for thunder today (Thursday) with a fresh warning for more storms and some areas to see up to 80mm of rain. A yellow alert for thunder was issued for Anglesey, Gwynedd and Conwy lasting until 1pm today. That has now been extended by six hours until 7pm today.
In addition the weather agency has issued two fresh yellow alerts for thunder. The first starts at 6pm tomorrow (Friday), lasting until midnight, covering Conwy, Gwynedd, Denbighshire and Wrexham.
A Met Office forecast said: "Areas of heavy rain and some thunderstorms are likely to move northwards into southwest England and Wales on Friday evening.
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"Rainfall amounts and thunderstorm activity will vary across the area however there is the potential for 20 mm of rain to fall in an hour and 30-40 mm to fall in 3 hours or less in a few places. As well as this there is a small chance of frequent lightning and hail within the rain area as additional hazards."
The second yellow alert comes into effect from midnight on Friday until 6pm on Saturday, covering the whole of North Wales to include Anglesey and Flintshire.
A Met Office forecast said: "Areas of heavy rain and some thunderstorms will move northwards across areas of England and Wales early on Saturday, reaching parts of southern Scotland later in the morning.
"After this first batch of rain moves north, further heavy showers and thunderstorms are likely to break out in its wake. Rainfall will vary across the warning area and some places will avoid the heaviest rain.
"However, 10-20 mm of rain is likely to fall in some places in an hour or less, with potential for 30-50 mm to accumulate in a few hours. Event rainfall could reach 60-80 mm in some locations. Strong gusts and hail may also accompany some of the thunderstorms"
People were warned of potential flooding and travel disruption, power cuts and possible damage to buildings. They were also urged to take extra care and not shelter under trees in thunder storms.
"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," a Met Office statement said.
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