The meteorological event of the day, storm Katie, gives a dramatic signature on all the various meteorological graphics. MODIS channel 22 at 280230, Earthnullschool surface winds and UKMO surface analysis 280000 presented above.
Surface wind flow from Earthnullschool shows the intense wind field over SE UK, squeezed ahead of the vortex, but the NW’ly surge of air from Denmark Straits is perhaps the most striking element of this graphic.
The storm is a snag in a larger complex depression which mixes cold air from the pole to the West and warm air up to the East. By this method, the atmosphere does its job of breaking down the temperature gradient from equator to pole and illustrates one of the keys to meteorology.