Jenolan Caves Road is closed between Kanangra Road and Jenolan Caves House in Jenolan because a bus is stuck on a hairpin bend. 

Traffic is being turned around, and as a result, there is no direct access to Jenolan Caves from Oberon. Motorists can still access Jenolan Caves via Little Hartley. 

Motorists wanting to travel between Jenolan Caves and Oberon are advised to use Duckmaloi Road, but should allow additional travel time. This route is not suitable for heavy vehicles.

Jenolan Caves Road is expected to remain closed until tomorrow morning. 

Additionally, Darling Causeway is still closed in both directions near the Great Western Highway at Mount Victoria after a two-truck accident this morning. 

Motorists can use either the Great Western Highway or Bells Line of Road as an alternative route. 

Emergency services, traffic crews and heavy tow trucks are on site working on the complex salvage operation.

UPDATE: 2.41PM

All lanes on the Great Western Highway have reopened at Medlow Bath now that fallen trees have been moved from the road.

Alternating (stop/slow) traffic arrangements have been lifted, and traffic through the area has returned to normal.

Meanwhile, Darling Causeway remains closed in both directions near the Great Western Highway at Mount Victoria after this morning's accident involving two trucks.

Motorists can use the Great Western Highway or Bells Line of Road as an alternative.

Emergency services and traffic crews remain at the accident site, and are continuing a lengthy salvage operation.

UPDATE: Noon; 

TREES down and truck accidents have caused ciaos for travellers through the Blue Mountains and Lithgow areas.

Currently the Darling Causeway is closed in both directions due to a truck accident Motorists are able to use the Bells Line of Road and the Great Western Highway as an alternative.

Additionally, alternating stop/slow traffic conditions are in place on the Great Western Highway in Medlow Bath due to fallen trees near Bellevue Crescent.

The Jenolan Caves Road remains closed at Hampton due to fallen trees.

Site workers are removing the debris but it will take some time because of the size of the operation.

REAL winter came roaring in across the tablelands, and over much of NSW, this week and throughout the Lithgow district all at once it was about as testing as it gets.

Icy gale force winds, snow, blocked roads, power failures — it was all there in the most extreme conditions since mid winter last year.

Residents had been warned that a wintry blast was on its way but the forewarning was of little comfort when the change arrived on Tuesday, shattering the unusually mild conditions experienced since the beginning of winter.

Temperatures in the Lithgow/Blue Mountains district have rarely, if at all, been out of single figures this winter, until now .

Tuesday’s official maximum and minimum readings told the story; OBERON 5.1/0.7;KATOOMBA 5.6/1.3; ORANGE 6.4/1.8; LITHGOW 7.4/2.3. 

These were the official temperatures but it was the wind chill factor from the south westerly gales that really carried the bitter impact on anyone venturing outdoors.

Today is no better as the wind continues to blow and temperatures remain in single digits.

Snow was reported at Hampton, Oberon, Yetholme and Blackheath but cleared in fairly quick time.

The howling wind brought down a tree across power lines and the roadway near the Hydro Majestic at Medlow Bath, closing the Great Western Highway for some time on Tuesday.

This morning the Jenolan Caves Road was closed by a fallen tree at Hampton.

Hundreds of people in the Springwood area were also without electricity when power lines came down.

The wind also caused an environmental problem around the Lithgow area when garbage and recycling bins were blown over, scattering their contents along gutters and footpaths.