Pressure is measured in millibars. Standard pressure at sea level is 1013 millibars, but large areas of either high or low pressure can occur. Areas of high and low pressure are caused by rising ...

Often in a weather forecast, the presenter will refer to high and low pressure. There may even be areas marked with ‘HIGH’ and ‘LOW’ on the weather map. But what does this mean?

The low pressure area over southeast Bay of Bengal and adjoining east Equatorial Indian Ocean has moved and become a well-marked low pressure area over the southwest and adjoining southeast Bay of ...

almost creating a tug-of-war between high and low-pressure areas that increase wind speeds in southern California. “Once those winds hit those really tall mountains in southern California ...