Shropshire is on the edge of the yellow warnings we have issued, with the most persistent and heaviest rain expected across Wales, north west England and south west England.
Met Office is urging people to be prepared for potential dangers with weather warnings in place as Storm Callum prepares to batter Northern Ireland on Friday. "There is also a risk that the high winds associated with Storm Callum, combined with high tides, may lead to some coastal impacts due to large waves".
Also issued by Met Eireann at 10:00am this morning, this warning will be in effect for the longer time of 10:00pm tomorrow night through to 12:00pm on Friday.
"Winds will reach strong gale force or storm force along the coast with severe or possibly damaging gusts". The focus of heaviest rainfall will remain across Wales, and move increasingly into parts of Scotland.
There are now five weather warnings in place as the storm apporaches, including four status orange warnings and a status yellow warning.
As high seas are predicted, the public are advised to stay away from coastal areas during this period.
The RSA said that with the risk of coastal flooding, motorists should not attempt to drive through flooded areas.
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Drive to anticipate strong cross winds and other hazards such as falling/fallen trees.
Met Office meteorologist Greg Dewhurst said: "Storm Callum is coming from the middle of the Atlantic". High sided vehicles and motorcyclists are particularly vulnerable to strong winds - slow down and give extra space to pedestrians and cyclists.
Last month, Storm Ali battered the country, causing two deaths and widespread infrastructural damage.
The weather has already caused misery this week for Scots, with strong winds and rain causing disruption to the transport network.
On Saturday, heavy rain is expected across most of the country as it looks set to be a wet weekend.
Higher wind speeds will impact all areas of the province, with exposed coasts and hills the worst affected.