Met Pressure Charts

[The_Balrog]

Haven’t had the need to look at these for a few years as I haven’t been sailing. OK I understand the warm, cold and occluded fronts but what are those heavy black lines (not the isobars) - New to me
http://www.metoffice.gov.uk/weather/charts/index.html

[Droid]

@Met Office

Trough
An elongated area of relatively low surface pressure. The troughs marked on weather charts may also represent an area of low thickness (thickness trough), or a perturbation in the upper troposphere (upper trough). All are associated with increasing cloud and risk of precipitation.

That’s what it looks like to me

/edit It looks like we’re getting a Hurricane coming at us from the south west

[The_Balrog]

Thanks Droid .

@Droid

It looks like we’re getting a Hurricane coming at us from the south west

Yup certainly looks like it untill you realise that depression is nearly the size of the Atlantic. Defo some nasty stuff coming in though