Another classic from the UKMO – a warm quadrilateral?

Courtesy UKMO

Another amazing forecast chart from the UKMO. In their latest T+48 forecast chart creation there is a completely new type of synoptic feature in the North Sea off the east coast of Scotland that I’ve never ever seen before. The only way to describe it is that it’s a weird kind of quadrilateral self contained warm sector, enclosed on three sides by cold fronts each moving eastward, westward and southward, with a warm front on its southern edge. Presumably the whole feature is advancing slowly southwards as the quad warm sector gradually reduces in size till it eventually disappears. This chart has just about every feature that you can put on a weather chart. It has:

  • Cold Front
  • Warm Front
  • Occlusion
  • Frontolysis
  • Frontogenesis
  • Convergence line
  • Warm Sector
  • And of course a Quad Warm Sector

It’s only missing:

  • Trough
  • Quasi stationary front

Perhaps next shift they can include all ten features in a single chart.

1 thought on “Another classic from the UKMO – a warm quadrilateral?”

  1. There is either an artist on the bench at UKMO and/or they have found a warm area where the gas/oil fields flare in the North Sea.

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