Figure 16.1 Source regions for air masses that influence North America. mP Maritime polar Cool, humid...

Transcribed Image Text:

Figure 16.1 Source regions for air masses that influence North America. mP Maritime polar Cool, humid mT Maritime tropical Warm, humid cP Continental polar Cold, dry CT Continental tropical Hot, dry.. mP Maritime polar Cool, humid mT Maritime tropical Warm, humid SmartFigure 16.2 Profiles of A. a warm front and B. a cold front. Warm front symbol A. Warm front Warm stable air Nimbostratus (Ns) Moderate precipitation 1600 km (1000 miles) Altostratus (As) Cirrostratus (Cs) Cool air Cirrus (Ci) B. Cold front Cold air Cumulonimbus (Cb) Heavy precipitation Cold front symbol Cirrus (Ci) Warm air Figure 16.3 Stages in the formation of an occluded front. A. The air behind the cold front is colder (denser) than the cool air ahead of the warm front. B. The cold front moves faster than the warm front and overtakes it to form an occluded front. C. The denser cold air lifts both the warm air and the cool air that the warm air was overrunning. Cold air A. Warm air Cold front Warm front Symbol for an occluded front Cool air B. Cold air Warm air Heavy rain Occluded front Cool air C. Warm air Cold air Light rain Occluded front Cool air 1. On Figure 16.10, draw a line where continental polar (cP) air mass and maritime tropical (mT) air masses are likely to collide and, as a result, where a front is likely to develop. 2. Will a continental polar air mass most likely be found north or south of a front east of the Rocky Mountains in the central United States? Will a maritime tropical air mass lie north or south of the front? Continental polar air masses usually lie of a front. Maritime tropical air masses usually lie of a front. The following questions refer to Figure 16.2 and Figure 16.30, which illustrate a typical warm front, cold front, and occluded front. 3. Does warm air rise at the steepest angle along a cold or warm front? front 4. Are extensive areas of nimbostratus clouds and periods of prolonged precipitation most likely to occur along a cold or warm front? Explain why you expect longer periods of precipitation to be associated with this type of front. 5. Assume that the fronts are moving from left to right in Figure 16.2A,B. Is a drop in temperature most likely to occur with the passage of a cold or warm front? 6. Is a cold or warm front most likely to produce clouds of vertical development and perhaps thunderstorms? 7. Do clouds gradually become lower, thicker, and cover more of the sky as a cold front approaches or as warm front approaches? 8. During the development of an occluded front, is the cold or warm front advancing most rapidly? 9. What happens to the warm (mT) air during the development of an occluded front? (Hint: See Figure 16.30.) 10. Sketch the symbols for a cold front, a warm front, and an occluded front in the space below. (Hint: See Figures 16.20 and 16.30.) Cold front: Warm front: Occluded front: Figure 16.1 Source regions for air masses that influence North America. mP Maritime polar Cool, humid mT Maritime tropical Warm, humid cP Continental polar Cold, dry CT Continental tropical Hot, dry.. mP Maritime polar Cool, humid mT Maritime tropical Warm, humid SmartFigure 16.2 Profiles of A. a warm front and B. a cold front. Warm front symbol A. Warm front Warm stable air Nimbostratus (Ns) Moderate precipitation 1600 km (1000 miles) Altostratus (As) Cirrostratus (Cs) Cool air Cirrus (Ci) B. Cold front Cold air Cumulonimbus (Cb) Heavy precipitation Cold front symbol Cirrus (Ci) Warm air Figure 16.3 Stages in the formation of an occluded front. A. The air behind the cold front is colder (denser) than the cool air ahead of the warm front. B. The cold front moves faster than the warm front and overtakes it to form an occluded front. C. The denser cold air lifts both the warm air and the cool air that the warm air was overrunning. Cold air A. Warm air Cold front Warm front Symbol for an occluded front Cool air B. Cold air Warm air Heavy rain Occluded front Cool air C. Warm air Cold air Light rain Occluded front Cool air 1. On Figure 16.10, draw a line where continental polar (cP) air mass and maritime tropical (mT) air masses are likely to collide and, as a result, where a front is likely to develop. 2. Will a continental polar air mass most likely be found north or south of a front east of the Rocky Mountains in the central United States? Will a maritime tropical air mass lie north or south of the front? Continental polar air masses usually lie of a front. Maritime tropical air masses usually lie of a front. The following questions refer to Figure 16.2 and Figure 16.30, which illustrate a typical warm front, cold front, and occluded front. 3. Does warm air rise at the steepest angle along a cold or warm front? front 4. Are extensive areas of nimbostratus clouds and periods of prolonged precipitation most likely to occur along a cold or warm front? Explain why you expect longer periods of precipitation to be associated with this type of front. 5. Assume that the fronts are moving from left to right in Figure 16.2A,B. Is a drop in temperature most likely to occur with the passage of a cold or warm front? 6. Is a cold or warm front most likely to produce clouds of vertical development and perhaps thunderstorms? 7. Do clouds gradually become lower, thicker, and cover more of the sky as a cold front approaches or as warm front approaches? 8. During the development of an occluded front, is the cold or warm front advancing most rapidly? 9. What happens to the warm (mT) air during the development of an occluded front? (Hint: See Figure 16.30.) 10. Sketch the symbols for a cold front, a warm front, and an occluded front in the space below. (Hint: See Figures 16.20 and 16.30.) Cold front: Warm front: Occluded front: Figure 16.1 Source regions for air masses that influence North America. mP Maritime polar Cool, humid mT Maritime tropical Warm, humid cP Continental polar Cold, dry CT Continental tropical Hot, dry.. mP Maritime polar Cool, humid mT Maritime tropical Warm, humid SmartFigure 16.2 Profiles of A. a warm front and B. a cold front. Warm front symbol A. Warm front Warm stable air Nimbostratus (Ns) Moderate precipitation 1600 km (1000 miles) Altostratus (As) Cirrostratus (Cs) Cool air Cirrus (Ci) B. Cold front Cold air Cumulonimbus (Cb) Heavy precipitation Cold front symbol Cirrus (Ci) Warm air Figure 16.3 Stages in the formation of an occluded front. A. The air behind the cold front is colder (denser) than the cool air ahead of the warm front. B. The cold front moves faster than the warm front and overtakes it to form an occluded front. C. The denser cold air lifts both the warm air and the cool air that the warm air was overrunning. Cold air A. Warm air Cold front Warm front Symbol for an occluded front Cool air B. Cold air Warm air Heavy rain Occluded front Cool air C. Warm air Cold air Light rain Occluded front Cool air 1. On Figure 16.10, draw a line where continental polar (cP) air mass and maritime tropical (mT) air masses are likely to collide and, as a result, where a front is likely to develop. 2. Will a continental polar air mass most likely be found north or south of a front east of the Rocky Mountains in the central United States? Will a maritime tropical air mass lie north or south of the front? Continental polar air masses usually lie of a front. Maritime tropical air masses usually lie of a front. The following questions refer to Figure 16.2 and Figure 16.30, which illustrate a typical warm front, cold front, and occluded front. 3. Does warm air rise at the steepest angle along a cold or warm front? front 4. Are extensive areas of nimbostratus clouds and periods of prolonged precipitation most likely to occur along a cold or warm front? Explain why you expect longer periods of precipitation to be associated with this type of front. 5. Assume that the fronts are moving from left to right in Figure 16.2A,B. Is a drop in temperature most likely to occur with the passage of a cold or warm front? 6. Is a cold or warm front most likely to produce clouds of vertical development and perhaps thunderstorms? 7. Do clouds gradually become lower, thicker, and cover more of the sky as a cold front approaches or as warm front approaches? 8. During the development of an occluded front, is the cold or warm front advancing most rapidly? 9. What happens to the warm (mT) air during the development of an occluded front? (Hint: See Figure 16.30.) 10. Sketch the symbols for a cold front, a warm front, and an occluded front in the space below. (Hint: See Figures 16.20 and 16.30.) Cold front: Warm front: Occluded front: Figure 16.1 Source regions for air masses that influence North America. mP Maritime polar Cool, humid mT Maritime tropical Warm, humid cP Continental polar Cold, dry CT Continental tropical Hot, dry.. mP Maritime polar Cool, humid mT Maritime tropical Warm, humid SmartFigure 16.2 Profiles of A. a warm front and B. a cold front. Warm front symbol A. Warm front Warm stable air Nimbostratus (Ns) Moderate precipitation 1600 km (1000 miles) Altostratus (As) Cirrostratus (Cs) Cool air Cirrus (Ci) B. Cold front Cold air Cumulonimbus (Cb) Heavy precipitation Cold front symbol Cirrus (Ci) Warm air Figure 16.3 Stages in the formation of an occluded front. A. The air behind the cold front is colder (denser) than the cool air ahead of the warm front. B. The cold front moves faster than the warm front and overtakes it to form an occluded front. C. The denser cold air lifts both the warm air and the cool air that the warm air was overrunning. Cold air A. Warm air Cold front Warm front Symbol for an occluded front Cool air B. Cold air Warm air Heavy rain Occluded front Cool air C. Warm air Cold air Light rain Occluded front Cool air 1. On Figure 16.10, draw a line where continental polar (cP) air mass and maritime tropical (mT) air masses are likely to collide and, as a result, where a front is likely to develop. 2. Will a continental polar air mass most likely be found north or south of a front east of the Rocky Mountains in the central United States? Will a maritime tropical air mass lie north or south of the front? Continental polar air masses usually lie of a front. Maritime tropical air masses usually lie of a front. The following questions refer to Figure 16.2 and Figure 16.30, which illustrate a typical warm front, cold front, and occluded front. 3. Does warm air rise at the steepest angle along a cold or warm front? front 4. Are extensive areas of nimbostratus clouds and periods of prolonged precipitation most likely to occur along a cold or warm front? Explain why you expect longer periods of precipitation to be associated with this type of front. 5. Assume that the fronts are moving from left to right in Figure 16.2A,B. Is a drop in temperature most likely to occur with the passage of a cold or warm front? 6. Is a cold or warm front most likely to produce clouds of vertical development and perhaps thunderstorms? 7. Do clouds gradually become lower, thicker, and cover more of the sky as a cold front approaches or as warm front approaches? 8. During the development of an occluded front, is the cold or warm front advancing most rapidly? 9. What happens to the warm (mT) air during the development of an occluded front? (Hint: See Figure 16.30.) 10. Sketch the symbols for a cold front, a warm front, and an occluded front in the space below. (Hint: See Figures 16.20 and 16.30.) Cold front: Warm front: Occluded front: