During Tuesday night a deep area of low pressure swings in from the Atlantic planting itself over the south of the country. This low will throw up rain from the south from midnight and into the early hours of Wednesday, along with gales.
On the coast there is the potential for gusts up to around 70 mph possibly 80 mph in the far southwest. Inland gusts to around 60 mph are likely.
A gradual change to more showery conditions is expected on Wednesday but still with some longer spells of rain, which could mean that some areas see accumulations of 20-30 mm in 24 hours, perhaps even 40 mm over southwestern hills.
The MET Office is warning the public to be aware of the risk of disruption from either the wind or rain elements in this warning, which have almost equal prominence during this period. Additionally, large waves and high tides mean a further risk of flooding in some coastal areas.