If the depression has a large warm sector it has a tendency to deepen. As a depression occludes the deepening processes decrease. A non-frontal depression tends to move with the strongest wind circulating around it. A front which is crossed by isobars which are close together will probably be fast moving. A front which is parallel to the isobars will be slow-moving.
Warm fronts move at about half the speed of the wind at the front.
Small anticyclones usually move faster than large ones. B - Even without a weather map the observer who notes carefully the weather changes taking place can form for a period of about 6 hours ahead, a useful estimate of the weather to come. A falling barometer is an indication of bad weather to come. A rising barometer does not necessarily indicate good weather to come. In unsettled conditions a rapid rise can quickly be followed by a rapid fall.