This intense area of low-pressure, will pass to the west of Ireland, northern England and Scotland during Friday.
The weather warnings are coming thick and fast and Met Éireann has even issued a scary "risk to property and life" statement. The Western Isles could get another hit of severe gales and high gusts on Saturday afternoon, again not as stormy as on Friday but worth bearing in mind.
An amber warning for heavy rain has been issued for most of south Wales on Friday, as Storm Callum approaches.
"Both Friday and Saturday will be wet and windy days for Shropshire, with bursts of heavy rain at times".
The Indian summer is finally petering out as Storm Callum threatens to bring strong winds and the possibility of flooding to parts of the United Kingdom tomorrow.
Met Éireann has issued Status Orange weather warnings for 13 counties, with high winds coinciding with high spring tides tomorrow evening.
Strong winds of up to 130 kilometres per hour are forecast, while winds of up to 110 kilometres per hour are being forecast for inland counties.
The caution is due to come into effect on Thursday, October 11 at 10pm and will remain in place until noon on Friday.
Pembrokeshire County Council is also warning residents to be aware of the potential for danger and disruption.
Cllr John Campbell says areas of South Donegal which have been prone to flooding in the past owing to high tides could still be vulnerable.
"It's not a major event in the east, we don't expect a major flooding event along the east coast", she told RTÉ Radio One's Today with Sean O'Rourke programme.
NRW has also advised people to take extra care will driving, to avoid walking or driving through any flood water, and to avoid fast flowing rivers and streams.
"There are a number of locations on our network which have been susceptible to flooding during extreme weather and as such we are looking at possible amendments to services in partnership with Network Rail to reduce the impact of this weather".