Physical Geography Laboratory Manual Name section, EXERCISE 19 PROBLEMS PART II
ID: 106397 • Letter: P
Question
Physical Geography Laboratory Manual Name section, EXERCISE 19 PROBLEMS PART II The following questions are based on the surface weather map shown in Figure 19-3. 1. Describe the following weather conditions at 7:00 A.M. EST on November 9, 2011. in Springfield, Missouri (37 N. 93 W an enlarged copy of the station model is shown here). (a) Temperature: 2EA Springfield (b) Wind direction: we 37 177 (c) Pressure: +44 (d) Pressure change over last 3 hours: 35 0 (e) What explains this change in pressure? What explains the difference in temperature between Springfield and Nashville? 2. (a) What general kind of weather (wet or dry)should Pocatello, Idaho (43° N, 112 W), expect over the next few hours? (b) Why? 3. (a) Use the graphic map scale (in nautical miles [NMD to estimate the distance from the center of the storm south of Chicago (at 40° N, 90° W) to the east coast of the United States (measure along the 40th parallel). nautical miles (b) Assuming that the storm travels to the east at a speed of 30 knots, how many hours will it take for the center of the low to reach the east coast? hoursExplanation / Answer
1. a. temperature :37 degree F
b. Wind direction: towards west
c.Pressure: The pressure is mentioned in the station weather model is 177. Adding 10 in the front and moving the digit to one decimal place will be 1017.7mb.
d. The pressure change over last 3 hours is represented by +44 in the station model. When taken the nearest 10th of a millibar it will be 4.4 mb, so the pressure has risen by 4.4 mb in the last 3 hours.
e. As we can see that the circle is completely filled which means that the cloud cover is overcast and there is precipitation in the area. The pressure change is due to change in temperature associated with the precipitation in the area.
f. There is difference in temperature between the Springfield and the Nashville. Since the Nashville is located in the warm sector of the storm whereas the Springfield is located in the cold sector of the storm.
2. a. Since there is high pressure developing over the Pocatello as can be seen in the map. So in the next few hours it is expected that there will be dry weather in the Pocatello, Idaho.
b. There is a high pressure developing in the Pocatello. The high pressure areas results in stable and sinking winds and associated with dry and cold temperatures which results in dry weather in the next few hours in the region.