BBC Wales weather presenter Behnaz Akhgar described Friday morning's forecast as the "worst one I have had to deliver in 14 years of broadcasting".
She warned that the worst of Storm Eunice will hit Wales mid-morning, and while it will move through quickly, there is the potential for damaging winds coupled with high tides.
Parts of Wales have been placed under a "rare" red alert as Storm Eunice approaches. You can follow live updates from around the country here.