Synoptic chart
Sample question
Question
The synoptic chart below describes the likely weather conditions in Glasgow (G) and Lyon (L).
Explain the weather conditions experienced at Glasgow and Lyon on 14 November 2021 .
Look at the same synoptic chart now with some hints added.
Glasgow’s weather is very unsettled because a depression is passing. Glasgow will firstly experience dry weather conditions for a short period as it is currently in the warm sector. As the cold front moves over, thick clouds will bring heavy rain showers.
The wind will be strong because the isobars are close together. Wind direction will be south-westerly as winds blow anti-clockwise in a depression.
Lyon’s weather is settled as it is covered by an anticyclone/ high air pressure. Lyon will be experiencing dry weather as there are no fronts. The wind will be calm/gentle as isobars are far apart.
Wind direction will be easterly as winds blow clockwise in an anticyclone. There will be low temperatures and possibly frost because it is a winter anticyclone.