Overnight winds reach 85mph as Scotland is hit by Storm Boelo
Network Rail said fallen trees and flooding had affected tracks across Scotland, including near Partick in Glasgow
Overnight winds reached 85mph at Machrihanish in Argyll and Bute as Storm Boelo took hold across Scotland.
Train and ferry services have been cancelled and police have warned against unnecessary road journeys
An amber Met Office weather warning, external came into effect at 21:00 on Saturday, covering the mainland and Western Isles until 21:00 on Sunday.
Thousands of homes are without power, including in Argyll and Bute, Western Isles, Orkney, Ayrshire and Dumfries and Galloway. Forecasters say the strong winds could result in injury, flying debris, power cuts and damage to trees and buildings.
Dozens of flood warnings and alerts, external were in place across the country and flooding also closed a number of roads, including the A78 Inverkip Road in Greenock; the A77 at Lendalfoot in Ayrshire; and several in Dumfries and Galloway.
Network Rail has reported that trees have come down on the tracks near Dumfries and Partick, near Glasgow.
Highland Council said fallen trees had affected the A832 near Fortrose and A890 at Ardnarff.
Gary Gallagher said this boat broke free from its mooring in Gourock and was thrown on to Cove Road during the stormy weather
Scottish Power Energy Network said about 6,000 homes in its area are without electricity, mainly across Ayrshire and Dumfries and Galloway.
It is warning that more outages could occur as the storm continues.
SSEN has been dealing with more than 120 incidents in its area, with hundreds of properties in Aberdeenshire and more than 5,500 homes in the west Highlands without power.
Parts of the Western Isles are receiving electricity from an emergency power station due to a link to Skye being down.
Aberdeen City Council said flood gates at Riverside Drive have been closed as a precaution and will remain closed until at least Monday due to high levels on the River Dee.
Network Rail released this picture of flooding at Dalmarnock station in Glasgow
Although the 24-hour amber warning is not unprecedented, it is unusual because of the length of time it will be in place over such a wide geographical area.
On Friday the forecast triggered a meeting of the Scottish government's resilience room which ensures the country is prepared for severe weather events.
A fallen tree blocking the B749 Monktonhill Road near Troon
The amber warning takes effect from 21:00 on Saturday
The strongest winds initially affected western Scotland and the far north of Northern Ireland on Saturday evening, spreading eastwards overnight and through Sunday.
This will be accompanied by periods of heavy rain and frequent showers.
Forecasters warned that flying debris could cause injuries and danger to life, with a good chance of power cuts and an impact on phone coverage.
A number of power cuts in the Glasgow and Edinburgh areas have already been reported to SP Energy Networks.
The Met Office also warned of damage to trees and buildings, bridge closures and transport disruption.
The Erskine Bridge was closed to high-sided vehicles on Saturday evening.
Winds will gradually ease from the west through Sunday.
Network Rail said trees had come down on tracks near Dumfries
ScotRail said has warned of disruption across its services, external.
The operator said speed restrictions will be on all routes, all day, bringing longer journey times and some service alterations.
The following routes are closed or facing cancellations:
Glasgow Central - Ayr: No trains operate between Kilwinning and Ayr.
Glasgow Central - Gourock and Wemyss Bay: Alterations to services.
Glasgow Queen Street - Oban / Mallaig: No trains operate between Fort William and Mallaig and between Crianlarich and Oban.
Inverness - Kyle of Lochalsh: No trains operate between Kyle of Lochalsh and Achnashellach.
Inverness - Wick / Thurso: No trains operate between Helmsdale and Wick / Thurso.
Scotrail said they are working with Network Rail's specialist weather team, who will carry out safety checks on all affected routes before passenger services can resume.
They will be looking for fallen trees, debris, flooding, or damage to infrastructure.
The operator said passengers should check journey before travelling, allow extra time, and consider alternative arrangements where possible.
Passengers are advised to expect significant disruption and longer journeys, and should check services before they travel.
West coast ferry operator CalMac, external said 27 of its 30 services were affected by the weather.
Some routes could face disruption until Monday and cancellation at short notice, the ferry operator said.
Passengers on NorthLink Ferries are advised that there is the "possibility of disruption" to services from Saturday to Thursday because of the weather, external.
Supt Andy Barclay, deputy head of road policing for Police Scotland, warned drivers that conditions may be hazardous and urged them to consider whether journeys were "really necessary" over the weekend.
Stopping distances can be at least double on wet roads compared to dry conditions, and spray can reduce driver visibility
HGV and bus drivers should drive with extreme caution and be aware you may be asked to park at a suitable position by the police
If you need to travel, please drive to the conditions and allow extra time for your journey
Stay tuned to media outlets for further updates and consult the Traffic Scotland website and social media channels for information relating to affected roads
The Royal National Lifeboat Institution (RNLI) said weather conditions posed a safety risk in coastal areas and advised "extreme caution" if people were near the shoreline, especially along exposed cliffs, seafronts and piers.
The charity's water safety lead, Michael Avril, urged people to keep a safe distance from the water as conditions "could knock you off your feet or wash you into the sea".
Paisley's popular Halloween festival which was taking place this weekend has been cancelled. It included a parade, street theatre and outdoor light installations.
Renfrewshire Council said that while Friday's event had gone ahead as planned, it was "really sorry" that Saturday's events had been cancelled because of the severe weather forecast.
The Enchanted Forest event at Pitlochry on Saturday was cancelled and organisers said it was possible Sunday's event may also be cancelled.
A Halloween family fun day at Dean Park Castle and Country Park in Kilmarnock, scheduled for Sunday, has been postponed due to the weather warning.
Edinburgh City Council has said Princes Street Gardens, Lauriston Castle grounds, and Saughton Winter Gardens will be closed On Saturday evening and on Sunday.
Historic Environment Scotland advised that they have closed many of their properties across the country, external, including castles at Edinburgh, Stirling, Aberdour and Caerlaverock, and other landmarks such as Skara Brae in Orkney and Inchmahome Priory in Port of Monteith.
The National Trust for Scotland said some of the locations it manages will be closed because of the "adverse weather" and visitors should check social media channels for the properties before travelling.
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