Geography 1111l assignment for week of Mar 15 2001

Name _______________________________                        Class time:      11a                    2p

Instructions:

• See  http://www.uga.edu/geography/courses/geog1111L/weathmap.htm  and follow the weather map and forecasting exercise there, referring to your textbook and workbook when appropriate.
• Print this page, answer the questions below and turn them in next class (March 22)   Note that the questions on this sheet (the official homework) differ slightly from the questions on the internet site referenced above, so be sure to answer them as asked on this sheet.
• See chapter 8 of your textbook, and go through it to better understand this exercise.   This web exercise is the work for this week, so you don't need to look in chapter 9 of the lab manual - and whatever you do, DON'T study from the lab manual - use the web-site instead!   Look, if you like, at the many, many, many weather map symbols on pages in chapter 9!   Wow!   Enjoy them as objets d'art, but you'll need to know only those needed in the web exercise for any future tests.
• The text can be used as handy reference for the exercise, or to prevent beer-can circles from forming on the coffee table whilst geographing.

1   Where on the map do you see the lowest air pressure?
 
 

                 Where do you see the highest pressure?
 
 

2    What type of air mass is influencing St. Louis in eastern Missouri?
 
 

                 What type of air mass is influencing Valentine along the northern border of  Nebraska?
 
 

3    What would you expect the rainfall intensity to be in Thunder Bay, Ontario (just north of the NE corner of Minnesota)--intense rain or drizzle?
 
 

                 Why?
 
 

4     Compare the wind direction at Peoria in central Illinois, and Clark, in eastern South Dakota. What is the direction in each location?
 
 

                  What  accounts for the difference in wind direction between the two locations?
 
 

5     Why is it colder in central Kansas than it is in southern Wisconsin, which is much farther to the north?
 
 

6     Where on the map above is the pressure gradient the strongest?
 
 

7     Where are the wind speeds the greatest?
 
 

8     The surface map for October 17 shows 2 areas of high pressure--the northwestern U.S. and centered in North Carolina, but the air temperatures  and dewpoint temperatures are very different in the two regions. What accounts for these differences?
 
 
 

9     What would your forecast be for Chicago, Illinois for the next 24 hours?
 
 
 

10     For this question, look at the current weather map...
  note: if this link is not working, try    http://cirrus.sprl.umich.edu/wxnet/maps.html or   http://www.aos.wisc.edu/weatherdata/sfc/sfc_us_map.gif  or http://www.met.tamu.edu/weather/mg/selatest.gif or   http://www.rap.ucar.edu/weather/surface.html  or   http://ww2010.atmos.uiuc.edu/(Gh)/wx/surface.rxml ...
and make a forecast for the Athens area for the next 24 hours.   Take into consideration any surface cyclones (and associated fronts) that may be near us, and their likely path to be taken over the next day.   Explain in your answer why you forecasted the way you did according to what you know after this exercise, and attach (stapled, you know) a printed copy of the map you used.   Answer should be about 4-8 sentences, and concise.