Dear Tom,What do isobars represent on weather maps?—Mal Wallis, LyonsDear Mal,A bar is a metric unit of pressure and isobars are lines on a weather map that connect points of equal air pressure ...

Hourly weather observations that include sea-level pressure readings are plotted or printed on weather maps that meteorologists can analyze. Isobars are drawn by connecting points having equal sea ...

On the weather forecasts, you often show plots of isobars moving and then seem to indicate that the winds will be running parallel to the isobars. We all know that winds should be perpendicular to ...

It's half a century since the BBC introduced new weather symbols in its forecasts. Darren Bett looks back at what has changed ...

An isobar is a line of constant pressure. These lines are often measured in 2, 4, or 10 millibar increments.

The meteorologists from the FOX stations in the Midwest talk about severe weather this summer. Has it been worse than normal?

But winter isn’t over. Far from it. The weather pattern will change as we go into the weekend. High pressure will move out of ...

Hourly weather observations that include sea-level pressure readings are plotted or printed on weather maps that meteorologists can analyze. Isobars are drawn by connecting points having equal sea ...