These charts of surface pressure, from analysis (T+0) to the 84-hour forecast (T+84) are produced daily around 0730 UTC.
The black line just off the coast of southwest England is
a trough, which typically marks an area of showers. Warm
fronts lie across northeastern Scotland with an area of
low pressure and associated fronts in the North Atlantic.
The cold front far to the south of Greenland has dots
along it, showing that the front is developing or
Updated: 0730 UTC on Sun 8 Dec 2013