Please buy a cheap set of colored pencils for Monday 8 March

1. Print out the following, using the lab:

1. Surface chart at 00 UTC 1 March 2005: sfcplot 05030100 -p
2. 500 mb and 300 mb charts at 00 UTC 1 March 2005: fax ua_500 05030100 -p and
   fax ua_300 05030100 -p
3. Using "wxp" print out a plot of the New England hourlies for 05030100 (procedure discussed in class).

2. Analyses (Each table will do this in collaboration. Please select one person to act as spokesperson for (a) and (b), one for (d) and (e) and one for (f).

1. Locate the troughs and ridges on the 500 and 300 mb charts, and use conventional notation to indicate them.
2. On sfcplot, locate the lowest surface pressure observation in the eastern United States and decode it.
3. What is the Present Weather observed at Pittsburgh, Washington DC, and Milwaukee?
4. On fax ua_300, with a large "D", locate an area of divergence based upon our lecture/inquiry discussions of Monday.
5. On fax ua_500, with a large "+" locate an area of upward motion at the Level of Non-divergence, based upon our lecture/inquiry discussions of Monday.
6. Examine sfcplot in the eastern United States. Does the position of the surface low here correspond to what you would expect from (d) and (e), given our dicussions of Dine's Compensation? Explain.

3. Contour Analysis

Starting with the isobar for 1000 mb, draw isobars at 4 mb intervals on the wxp surface plot for New England. (Note: in the future this will be done on acetate first, as a rough draft, and then transferred to final copy. For this inclass exercise, you can use pencil and erase when you want to change things).