Vary this exercise by extending your forecasts so as to embrace the whole section of country in which your station is situated (as, _e.g._, New England, the Gulf States, the Lake region). Pay special attention to making forecasts of cold waves, of heavy rain or snowstorms, of high winds over the lakes or along the Atlantic coast, etc. When possible, obtain from the daily newspapers any particulars as to damage done by frost or gales, or concerning snow blockades, floods due to heavy rains, etc. Fig. 53 summarizes what has thus far been learned as to the distribution of the various weather elements around a well-developed center of low pressure. The curved broken lines represent the _isotherms_ (Chapter XIV). The solid concentric oval lines are the _isobars_ (Chapter XI). The arrows represent the _winds_, the lengths of the arrows being roughly proportionate to the wind velocities (Chapter XII). The whole shaded area represents the region over which the sky is covered by heavy lower clouds. The smaller shaded area, within the larger, encloses the district over which rain or snow is falling (Chapter XVI). The lines running out in front of the cloudy area represent the light upper clouds (_cirrus_ and _cirro-stratus_) which usually precede an area of low pressure. Imagine this whole disturbance moving across the United States in a northeasterly direction, and imagine yourself at a station (1) directly in the path of the cyclone; (2) south of the track; and (3) north of the track. In the first case, as the disturbance moved on in its path, you would successively occupy the positions marked _A_, _B_, and _C_ on the line _AC_, passing through the center of the cyclone. In the second case you would be first at _D_, then at _E_, and then at _F_. In the third case you would be at _G_, _H_, and _J_ in succession. What changes of weather would you experience in each of these positions as the cyclone passed by you? Imagine yourself at some station halfway between the lines _AC_ and _DF_. What weather changes would you have in that position with reference to the storm track? In what respects would these weather changes differ from those experienced along the line _DF_? Imagine your station halfway between the lines _AC_ and _GJ_. What weather changes would you have there? How would these changes differ from those experienced along the line _GJ_?