An amber wind warning, valid from 19:30 GMT on Tuesday, has been issued for much of Northern Ireland.
Storm Eleanor is the fifth named storm to hit the United Kingdom this winter.
High tide in Blackpool will be at around 11.30am.
The stormy conditions will also co-incide with high tides in many areas.
No flood alerts have been issued, and the Environment Agency thinks the risk to West Sussex is low for the week ahead. If you are in areas affected by the flood warnings please be prepared and where necessary take action to protect property, friends and family. Take extreme care on coastal paths and promenades and don't put yourself in unnecessary danger trying to take storm selfies, ' she said. Properties may flood and there may be travel disruption.
The Met Office has warned that peak gusts of 80-90mph are possible, especially along exposed parts of the east coast as Storm Eleanor passes.
A status orange wind warning is in place for Munster, Leinster and south Galway. This is in effect from 7.30pm until 4am tomorrow.
Met Eireann advises: "Strong to gale force and blustery southwest winds will develop later this afternoon over Munster and Leinster, veering westerly this evening, associated with storm Eleanor, giving some damaging gusts and also high seas on Atlantic coasts".
On its site, the warning reads: "A spell of strong winds is expected later Tuesday, overnight into Wednesday morning".