A representative for the hotel told the Belfast Telegraph it was still open and had the situation under control.
The Randox Northern Ireland Potato Festival, which had been due to take place on Saturday in Ballyclare, has been cancelled due to the bad weather.
In a statement on Friday, the festival organisers said: "Unfortunately we have had to take the difficult decision to cancel the Randox NI Potato Festival scheduled for tomorrow ( Sat 13th October) due to adverse weather conditions.
"Weather conditions today have left us unable to build the marquees that were required for tomorrows event.
"We are very sorry for the disappointment and inconvenience caused to everyone that was looking forward to the festival.
"The Community Event in the Causeway Hotel Tonight from 7-9pm will still be taking place as planned."
Set in the surrounds of the Giants Causeway, and had been due to host an artisan market and a number of cooking displays.
Flights have been affected from Belfast International and Belfast City airports. All Flybe flights have been cancelled up to 9.30am and around 25 Aer Lingus flights with travellers advised to contact their airline before departure.
Translink has warned of disruption and speed restrictions across its network. Due to poor road conditions the Belfast Glider service may also be affected.
In the Republic the power supplier has said around 30,000 customers have been cut off.
There has also been reports of tress down and flooding in parts with warnings of hazardous conditions through the day. Police are advising drivers to take care on the roads and exercise caution.
The strongest winds overnight were reported on the Ards peninsula with parts of counties Down, Armagh and parts of Antrim getting the worst.
A Met Office weather warning remains in place until midnight.
Forecasters warned of heavy rain - up to four inches - and potential flooding in the wake of the storm.
"The rain is expected to be accompanied by strong winds, which when combined with high tides may lead to some coastal impacts due to large waves," Met office forecasters said last night.
"In addition, these winds may increase autumnal leaf fall, which would increase the potential for blocked drains and culverts, heightening the flooding risk."
Northern Ireland's Health and Safety Executive issued guidance to businesses which could be affected by the storm.
The organisation warned of danger from flying debris or falling objects and called on employers to assess the risk from the effect of storm conditions on their work activities, identify hazards and take necessary precautions.
In the Republic, where Storm Callum was set to first make landfall, a national emergency co-ordination group met yesterday for a briefing on the dangers posed by the intense weather system.
Experts from Met Eireann briefed the group on expected weather and warnings in place until this afternoon.
Met Eireann issued Status Orange weather warnings for 13 counties in the Republic - with high winds coinciding with high tides last night.
Twenty-one Aer Lingus flights scheduled to travel to and from Dublin airport today were also cancelled.