| The scale must, however, be laid perpendicularly to the isobars, as before. |
| Draw all other isobars in the sequence that spans the range of pressure values appearing on the map. |
| The lines on a weather chart are known as isobars and represent areas of equal pressure. |
| By convention, isobars on surface weather maps are usually drawn using standard intervals. |
| These lines are called isobars because every point on a given line has the same air pressure value. |
| The balance of forces is lost and the flow crosses the isobars towards the low pressure. |
