30ft is a bit off, in 63 some got up to 20ft, but after so much snow it could get there expecially if the wind is strong, either way looking possibly pretty spectacular, my mum said last night all these big snow events in the 70s etc, bought ordinary snow up to the windows and drifts up to astonishing heights and did not go for weeks, and my grandad use to get on the roof and knock off all the snow off the roof too. so if next week comes off, the snow thios week would look pretty crap