Storm Boelo brings disruption with the full force still to come
A more severe amber alert for counties Antrim and Londonderry lasts from 21:00 BST on Saturday until Sunday morning.
Storm Boelo has caused disruption, with the worst still expected to arrive
Storm Boelo brought gusts of more than 70mph (113kph) to the east coast of Northern Ireland on Saturday, and conditions are expected to deteriorate later this evening.
Some sporting fixtures and Halloween fireworks displays have been cancelled, flights and ferries have been disrupted, and the Foyle bridge in Londonderry has been closed in both directions.
An amber warning covering parts of counties Antrim and Derry comes into effect at 21:00 BST and lasts until 10:00 GMT on Sunday, with gusts of around 80mph or more possible in exposed areas.
A number of flights to and from Belfast City Airport and Dublin Airport have been cancelled.
Police said delays are likely on a lane of the M1 on-slip at Blacks Road because of a fallen tree.
The strongest winds from Storm Boelo are expected on Saturday evening and Sunday morning.
The Met Office says there is a strong chance of power cuts in the areas covered by the amber warning.
A less severe yellow weather warning is in force across Northern Ireland from 10:00 BST on Saturday until 12:00 GMT on Sunday.
Several StenaLine ferry sailings between Belfast and Cairnryan, and Dublin and Holyhead have also been cancelled.
Derry City and Strabane District Council said cemeteries will be open on Saturday and closed on Sunday, except for funerals.
Recycling centres will be open on Saturday but shut on Sunday, while outdoor sports facilities, parks and greenways will be closed on both days.
Brooke Park leisure centre will be closed on Saturday and Sunday.
Parkrun 5k events have been cancelled.
Causeway Coast and Glens Borough Council has cancelled its fireworks display at Ballymoney on Saturday.
Mid Ulster District Council has also cancelled its Halloween firework event, which was due to take place at the Mid Ulster Sports Arena in Cookstown.
The Antrim Senior Hurling Championship final, which was due to be held on Sunday, has been postponed until 1 November.
Glentoran's Irish Premiership match against Ballymena United was postponed because the pitch was waterlogged.
The Women's Challenge Cup final at Windsor Park on Saturday between Glentoran and Cliftonville has been postponed until 27 October.
The Sunflower Trophy motorcycle race meeting at Bishopscourt on Saturday has been cancelled.
Antrim and Newtownabbey Borough Council has postponed its spooked-out event.
The storm has also led to a number of road closures in the Republic of Ireland.
Met Éireann issued an orange rain warning for County Kerry from 07:00 (local time) until 14:00 on Saturday.
The forecaster said Storm Boelo would bring periods of very heavy and intense rain, with flooding expected and possible damage to homes and businesses.
It warned of disruption and delays to rail and bus services, severe disruption to outdoor events and very difficult travelling conditions.
An orange wind warning is in place for Counties Donegal, Galway, Leitrim, Mayo and Sligo from 14:00 on Saturday until 09:00 on Sunday.
Met Éireann said spells of heavy rain could cause localised flooding, difficult travelling conditions and disruption to outdoor events.
A yellow wind warning covering Counties Connacht, Clare, Kerry and Limerick will begin at 13:00 on Saturday and remain in place until 12:00 on Sunday.
Very strong south-westerly winds are expected to shift westerly, bringing severe gusts and coastal gales.
The forecaster warned of large coastal waves, fallen trees and branches, displaced debris and difficult driving and cycling conditions.
A separate yellow wind warning for County Donegal will run from 13:00 on Saturday until 15:00 on Sunday, with similar impacts expected.
The Met Éireann warnings were issued on Friday morning.