A “localised tornado” damaged around 100 properties in Greater Manchester as Storm Gerrit swept the country, with thousands of homes remaining without power and travellers likely to face continued disruption.

The storm brought heavy snow across parts of Scotland which, along with high winds and heavy rain, damaged electricity networks in the country as fallen trees, branches and other debris brought down power lines.

It also wreaked havoc on the travel network on Wednesday with a string of train operators – including ScotRail, LNER and Avanti West Coast – suspending and terminating some services, as well as advising customers not to travel.

A “localised tornado” is believed to have caused “significant damage” to homes in Stalybridge, Tameside.

“Numerous reports” were made to Greater Manchester Police (GMP) at around 11.45pm on Wednesday, and the force declared a major incident due to the “severity” of the damage caused and the potential risk to public safety.

No injuries were reported but many residents were forced to leave their homes.

Tameside Council said about 100 properties were evacuated after the “mini tornado” hit areas of Carrbrook and Millbrook.

A spokesperson said: “It is believed everyone affected made arrangements to stay with family and friends overnight.

“Our officers have been out all night and continue to be out today clearing debris, fallen trees and making roads, footpaths and other areas safe.”

Chief Superintendent Mark Dexter from GMP said: “This incident has undoubtedly affected numerous people in the Stalybridge area with many residents displaced from their properties during the night.

“Our highest priority is keeping people safe which is why we are advising those who have been displaced not to return or enter their properties which have significant damage until they have been assessed by structural engineers.

“I would also like to urge members of the public to avoid the area where possible and take extra care when travelling in vehicles on the roads in Stalybridge and the surrounding areas, due to debris in the road.”

Hayley McCaffer, 40, who lives in Carrbrook, told the PA news agency that some of her neighbours’ houses “are an absolute disaster” with missing rooves and “squished” cars.

She and her partner are not sure when they can get back into their home.

Patricia Watkinson, another Carrbrook resident who was away in Norfolk when gusts swept through the village, has been told by a neighbour that apart from a “dangling” aerial her home appears undamaged.

But the 83-year-old told PA that her neighbour’s shed “is gone”.

Authorities in Greater Manchester were also called on Wednesday to weather incidents amid reports of a possible tornado in Dukinfield and Mossley.

Tameside Council opened a reception area at Dukinfield Town Hall to cater for any displaced residents.

The Tornado and Storm Research Organisation said a detailed site investigation would need to be undertaken before it can confirm the damage was caused by a rare British tornado.

Meanwhile, Scottish and Southern Electricity Networks (SSEN) said that as of 11am on Thursday, supplies had been restored to some 34,000 customers, with around 7,700 left without power.

Director of corporate affairs Graeme Keddie told BBC Radio Scotland many of those properties are in north-east Scotland and Shetland.

“One of the main impacts we’ve seen is around access to faults, so blocked roads, flooding in fields, and issues with snow,” he said.

“We’re very hopeful that that will ease today but that has meant our teams on the ground have been saying that (in) the time it would take to fix two or three faults they have only been able to fix one, but we are hopeful of further progress today as weather conditions have eased.”

He added that power may not be restored for some customers until Friday, particularly those who live in heavily affected or rural areas.

Police Scotland confirmed the A9 has fully reopened in both directions and is “passable with care” after snow blocked the road between Drumochter and Dalwhinnie in the Highlands.

Inspector Michelle Burns, from the force’s road policing unit, said: “Conditions for travel in the affected areas may be hazardous and extra caution should be exercised by all road users.”

Scotland’s rail network experienced widespread cancellations and delays with a train driver’s cabin hit by a falling tree. No-one was injured.

ScotRail has suspended multiple train services until further notice to allow for safety inspections to be carried out.

Avanti West Coast, which operates services on the West Coast Main Line, said on Thursday morning that a tree falling on overhead wires between Rugby and Lichfield Trent Valley means some lines are blocked, extending journey times for services from London Euston towards the North West, as trains are diverted through the Midlands.

Ferry operator DFDS said its sailings between Dover and France are delayed due to strong winds in the Channel.Passengers are being advised to check in as normal and are being put onto the first available sailing.

Heathrow Airport cancelled 18 flights on Wednesday because of air traffic control restrictions including routes from Aberdeen, Edinburgh, Glasgow, Jersey and Manchester as well as to Barcelona, Berlin, Madrid and Paris.

Storm Gerrit also brought plenty of rain, with the Great Langdale Valley in the Lake District recording 80mm – nearly half the usual 178mm monthly rainfall for December, the Met Office said.

The fastest recorded wind gusts were 86mph at Inverbervie in Aberdeenshire, 84mph at Fair Isle in Shetland, and 83mph at Capel Curig, north Wales, the forecaster said.