Unsurprisingly, all these clouds bring rain which is why lows are usually ... On a weather map (synoptic chart), a low is denoted by an ‘L’ with the central pressure underneath.

The synoptic chart below describes the likely weather conditions ... As the cold front moves over, thick clouds will bring heavy rain showers. The wind will be strong because the isobars are ...

Mr King said: “Something you don't often see on a synoptic chart... a convergence line ... BBC meteorologist Tomasz Schafernaker warned that “rain is on the way”. He said: “It ...