ATMS 120: Online Snodgrass Name: _____________________________ Weekly Challenge Problem: Extra-Tropical Cyclones and Ice Storms 1. Below is a satellite view of a large extra-tropical cyclone from April 2001. Drawn on this map are the fronts (collision zones between air masses and focal points for significant weather) associated with this low-pressure system. Complete the tasks given below. (Hint: Check out Figures 10.4 and 10.5 to help you answer these questions). ! a. Label precipitation types next to each letter (except G) that are typically experienced around an extra-tropical cyclone. Use the proper weather symbols. Do not crowd your drawing with a lot of weather symbols. (Check out Figure 3.1 for a short list of significant weather symbols.) b. Given the current location of the low-pressure center, draw a thick arrow representing the path you expect this cyclone to take over the next few days. c. Given the current location of the low-pressure center and the path you drew for “b”, what would the formal name of this cyclone be? ______________________ d. Given the current location of this low-pressure system, what type of weather conditions would we experience at U of I. (Circle the correct answer.) Wind direction (N, NE, E, SE, S, SW, W, NW)ATMS 120: Online Snodgrass Temperature (below 32°F, at 32°F, above 32°F) Significant weather (snow, sleet, freezing rain, rain, thunderstorms) 2. Power outages are a common problem with any ice storm and most of the time they are caused by ice accumulations on trees that weigh down so heavily that they break under the stress and fall onto power lines. If a tree large tree branched were covered in 3.4 inches of ice, how much additional weight would that branch have to support? Some things you will need to know… The weight of ice per cubic foot: 57.2 lbs (in other words, the density of ice is 57.2 lbs/ft3) The surface area of the large tree branch: 15,400 in2 Calculate the additional weight of the ice on the tree branch. (Be very careful with units! Show your work