HIGH winds, slashing rain and heavy snow will whip areas of northwestern Europe from the United Kingdom to Scandinavia on Friday. Travel by road, rail, sea and air will be subject to delay or cancellation.  The worst of the storm will target northern and central UK, along with the nearby Irish Republic, on Thursday into Friday night. Wind speeds of about 65-95 km/h will be reached in many areas, and winds may top 120 km/h at sea and over hills. Heavy, wind-blown snow will cover higher ground in Scotland, where open areas of the Highlands could see blizzard conditions. Snow will also lie over hills in Ireland to northern England.  Thursday night and Friday, the storm centre will shift east to Scandinavia. At this time, the highest winds on land will target coastal areas of Denmark, southern Sweden, northern Germany and The Netherlands. Heavy snow will blanket much of eastern Norway with upwards of 30cm burying Oslo. Heavy snow will reach into western Sweden.