I was looking at the T+24 forecast chart from the UKMO this morning and it occurred to me that you rarely if ever see a quasi-stationary front on an analysis or forecast chart these days from the UKMO. Take the waving cold front to the north of Scotland in the above chart, it maybe that the front is stationary as this one appears to have become, so why not mark it up as stationary? I think the answer may have little to do with meteorology and more to do with shortcomings in the software drawing package they use, in that it doesn’t allow them to draw fronts with alternating barbs of cold, warm or occluded front symbols on a chart. So although they don’t often that frequently, in my opinion they are just a casualty of technology rather than not happening at all. Sometimes fronts are not going anywhere fast, but if there’s no indication of that in the isollabaric flow, they should be marked as stationary.
As you can see, since relocating to the north of Scotland I’ve got a lot more interested in frontal analysis for some strange reason. If you do ever happen to see a UKMO chart with a front marked quasi-stationary on it please drop me a line – I haven’t seen one for years!