The low pressure areas on this map are:
- the parts in the central part of the map and the parts in the low left part of the map, or the 989 and 993 marked pressures with white color, as well as their surroundings up to the 1,012 mark.
- the area on the upper part of the map, where the 995 marking is, and the surrounding area up to the 1,012 mark.
- the area on the low right part of the map, where the marking of 1005 is, to the next marking of 1,012 around it.
The standard air pressure is marked with the 1,013.25 mbar, so anything above it is considered as high air pressure, and anything bellow it is considered as low air pressure.