True False Choose true or false for each question by clicking the correct button. The middle latitudes are generally good source regions. Cumuliform clouds are often associated with passing cold fronts. Stratiform clouds are usually associated with approaching warm fronts. Occluded fronts are associated with active weather systems and storm formation.
Stability is enhanced when an air mass is colder than the surface over which is is moving.
Air masses from the same source region will have the same properties all of the time. Identified by a sudden drop in temperature, barometric pressure, and dew point, a wind shift from SSW to WNW, and increasing visibility. Identified by an increase in temperature and dew point, a wind shift from SSE to SSW, and decreasing visibility. Identified by a dip followed by a rise in barometric pressure, steadily dropping temperatures, and showers. Responsible for lake effect snows.