Mikel Nimbus

10hPA is a little to high up to have much of an impact on the Tropospheric Polar Vortex. With Sudden Strat Warmings, they tend to start at the top and then propogate downwards through the atmosphere. Once it reaches 70hpa and above then you start seeing interactions of the warming with surface conditions. So don't worry too much about its location at the moment, there's plenty of scope for that to change over the coming weeks.

Temperatures are shooting up here since the fog rolled in. Was -1.9 until about 2pm now -0.4 and rising. Hope it clears soon and we aren't robbed of an ice day.

14cm here in Barnet is crazy. The most we've had since the streamer event of Feb 2009 and far far more than I was expecting from this system. The roads are atrocious and have seen many cars stranded on small country roads out by Potters Bar. Going to be a long night for them.

Jesus H! The wind coming out the the leading edge of that was insane. Looked like one of those Nuclear bomb videos where everything was going sideways for 5 minutes. Multiple trees down in the area.

The winds have picked up significantly here in the last 15 minutes. Feels like it did around midday again and seeing more damage occurring. What's going on? Local building has lost parts of its roof.