The weather warning came into force at 9.42am and remains in place until 6pm this evening.
Snow is falling across the North York Moors with some roads becoming covered and drivers advised to take extra care in the conditions.
IN PICTURES: 17 Images looking back at Scarborough and Whitby in the SnowThe Met Office website said: "Snowfall may cause tricky travel conditions in places.
Some roads and railways likely to be affected with longer journey times by road, bus and train services
Some injuries from slips and falls may occur on icy surfaces
There will probably be some icy patches on untreated roads, pavements and cycle paths
Southward-moving areas of sleet and snow are likely to give 2-5cm snow over higher ground above 200-300m whilst at lower levels snow accumulations will be smaller and patchier in nature with 1-2cm snow for some.
Where snow falls, expect slippery pavements and tricky driving conditions."
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