Storm Ciaran Wednesday and Thursday will see a period of strong winds and heavy rain across parts of Wales and southern England. Unsettled conditions will continue across much of the UK into next week and several severe weather warnings have already been issued, with updates and additions expected throughout the week.
Parts of the UK will experience heavy rain ahead of the arrival of a deep area of low pressure called Storm Ciaran. The storm will then move towards the south west of the UK from Wednesday evening, bringing very strong winds and heavy rain to southern England and Wales overnight and into Thursday.
It is the third named storm of the season and will bring damaging winds and heavy rain to areas where the ground is already saturated.
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Stephen Keats, deputy chief meteorologist at the Met Office, said: “Storm Ciaran will bring very strong winds along the south coast of England and Wales, with gusts of 70 to 80mph possible, including 90mph in exposed areas. Other gusts could reach 50 or 60 mph.”
He added: “As well as strong winds, this deep low pressure system will bring heavy rain to many parts of the UK. Heavier rainfall is expected in the south and west, with 20 to 25 mm possible in large areas and 40 to 60 mm on high ground. “This rain will fall on already saturated land, creating the risk of flooding.”
BBC Weather says the storm is being driven by a very powerful jet stream (strong wind in the atmosphere) at around 200mph. Such a powerful jet stream contains too much energy for low-pressure systems to develop.
They add: “This low pressure system may in fact be one of the deepest low pressure areas recorded in the UK in November, close to the current record of 948.4 hPa in 1954.”
Here’s what you need to know when a storm hits:
Wednesday afternoon/evening
The Met Office forecast for Wales for Wednesday said: “Moving day. A wet start as the rain clears and mid-morning briefly becomes drier and brighter.
The afternoon forecast said: “Heavy rain will continue before heavy rain begins. The winds will persist. Maximum 14°C”.
The UK’s BBC Weather says that initially the strongest winds are likely to occur in southern England and the Channel Islands, where they could reach 80 to 90 mph in the most exposed areas.
Forecasters say: “These strong winds can cause damage to trees and power lines, possibly causing damage to vehicles. Ferries crossing the English Channel could be particularly affected.
“Gusts for the southern UK inland could reach 50-60 mph (80-97 km/h), again causing some disruption and damage.”
Yellow weather alert for rain In much of Wales begins Fr. 6 p.m. It said: “Periods of heavy rain associated with Storm Ciaran are expected to affect much of southern Britain from Wednesday evening and throughout Thursday. Another 20-30mm is probably wide enough, but 40-60mm may accumulate in some locations, especially, but not exclusively, on high ground. Given this amount of rain, current saturated conditions and the potential for fallen leaves to block drains, etc., further impacts are likely.”
(Image: Meteorological Office)
Yellow weather alert for wind In much of Wales begins Fr. 9pm. It said: “Storm Ciaran is likely to bring very strong winds to the south of the UK. Wind gusts are expected to reach 50 to 60 mph along the coast and could reach 70 to 80 mph at times along the Channel coast. England and North Cornwall. There is a very low chance of gusts of up to 90mph affecting far west Cornwall and the Isles of Scilly. Gusts inland are likely to reach 40-50mph at times, with gusts of 60-70mph on high ground such as Dartmoor. “Very large waves could cause additional impacts to coastal areas, particularly in parts of west and south Wales and southern England.”
Thursday
The Met Office forecast for Wales for Thursday said: “Remaining unsettled with showers and prolonged periods of rain, heavy at times. Winds will continue to reach gale force with Storm Ciaran on Thursday possibly strong on the coast.
BBC Weather reports: “Rain associated with Storm Ciaran will move northeast from Wednesday night and throughout Thursday.
“Heavy and persistent rain will be accompanied by heavy showers and thunderstorms.”
They add: “While expected rainfall totals for Storm Ciaran are not necessarily high or unusual for autumn storms, problems are likely to arise as many follow a very wet period.
“River levels are still high and the soil is already very saturated. There are also around 70 flood warnings still in force across the UK.
“The heaviest rain will fall across southern England, south Wales, parts of northern England, Northern Ireland and eastern Scotland later in the week.”
Rain warnings remain in effect until midnight Thursday. With these areas covered by the warning:
- Blaenau Gwent
- bridge
- Caerphilly
- Cardiff
- Carmarthenshire
- Ceredigion
- Merthyr Tydfil
- Monmouthshire
- Neath Port Talbot
- Newport
- Pembrokeshire
- Pendant
- Rhonda Keenon Tuff
- Swansea
- Torfaen
- Vale of Glamorgan.
A wind warning is in place for most of Wales throughout the day on Thursday, ending at midnight. Areas of Wales affected by this warning:
- Blaenau Gwent
- bridge
- Caerphilly
- Cardiff
- Carmarthenshire
- Ceredigion
- Gwynedd
- Isle of Anglesey
- Merthyr Tydfil
- Monmouthshire
- Neath Port Talbot
- Newport
- Pembrokeshire
- Pendant
- Rhonda Keenon Tuff
- Swansea
- Torfaen
- Vale of Glamorgan.
Long term vision
The Met Office forecast says the weather will remain “disruptive”.
They say: “Although the stronger winds associated with this system may affect France more than the UK, there is still the potential for damaging winds accompanied by further heavy rainfall, perhaps more likely in southern areas. Next week looks to remain quite unsettled, with more rain or showers and some strong winds, but towards the middle of the month there is a chance of slightly drier and possibly cooler conditions developing, especially further north, although nothing unusually cold at the moment. of the year is currently pointing.
Source: Wales Online

John Cameron is a journalist at The Nation View specializing in world news and current events, particularly in international politics and diplomacy. With expertise in international relations, he covers a range of topics including conflicts, politics and economic trends.