A map overlay showing mean sea level pressure in isobars also known as surface pressure for the UK.
Single tile map layer images are provided with three hourly intervals from T+0 to T+36. These are updated every 6 hours.
The map layer is provided without a map, the boundary box for this image is 48° to 61° North and 12° West to 5° East.
The image layers are currently made available in a Mercator projection, it is the same projection used by Bing maps, OpenStreetMap, Google maps, MapQuest, Yahoo maps, and others.
Last updated: 2 September 2016