Name: ______________________ Date: ________ Class Period: ________ TrackingHurricane Katrina Introduction: The 2005 hurricane season was the most active season on record resulting in 27 named storms. Hurricane Katrina was the eleventh named storm and would end up being the sixth most powerful Atlantic hurricane ever recorded and the third most destructive hurricane to make landfall in the US. Katrina formed in the western Atlantic Ocean as a tropical depression over the Bahamas on August 23, 2005. Warm water and moisture laden air provided enough energy for the storm system to strengthen and eventually become a tropical storm, then a hurricane. Once Hurricane Katrina moved into the Gulf of Mexico it strengthened rapidly becoming a category 5 hurricane. However, before it reached landfall it had weakened to a category three hurricane. Despite this, it was still strong enough to cause severe damage to the Gulf coast region in eastern Louisiana and the Louisiana/Alabama state line. Most notably it breached the levees in New Orleans leaving 80% of the city under water. Over 1800 people were killed as a result of this storm as well as causing an estimated $81.6 billion dollars in damages. In this lab, you will use data from Hurricane Katrina to study some weather conditions common to all hurricanes. You will also plot on a map showing the path of Hurricane Katrina. Materials: Sharpened Pencil, Hurricane Tracking Map Procedure 1. Plot the latitude and longitude for each date on the map of the Western Atlantic provided to show the path of the hurricane. 2. Number each point in order along the path of the hurricane making it easier to locate the where the hurricane was for each given date. 3. Connect each point with a line and draw arrows on the line indicating the direction the hurricane was moving. 4. Answer all the questions about Hurricane Katrina following the data table. Selected Data For Hurricane Katrina Latitude (oN) 23.2 24.7 26.2 26.1 25.3 24.6 24.4 25.0 25.1 26.9 28.8 30.2 31.9 33.5 36.3 38.0 39.4 41.1 Longitude (oW) 75.5 76.7 78.7 79.9 81.5 83.6 84.4 86.2 86.8 89.0 89.6 89.6 89.6 88.5 87.5 86.0 84.0 81.6 Date and Time 08/23/21z 08/24/15z 08/25/09z 08/25/21z 08/26/09z 08/27/03z 08/27/09z 08/28/03z 08/28/06z 08/28/21z 08/29/09z 08/29/15z 08/29/21z 08/30/03z 08/30/15z 08/30/21z 08/31/03z 08/31/09z Wind Speed (knots) 30 35 45 65 65 90 100 100 125 145 130 110 65 50 30 25 25 15 Pressure (millibars) 1007 1006 1000 985 987 965 945 939 935 902 915 927 960 973 985 991 994 996 Status Tropical Depression Tropical Storm Tropical Storm Hurricane-1 Hurricane-1 Hurricane-2 Hurricane-3 Hurricane-3 Hurricane-4 Hurricane-5 Hurricane-4 Hurricane-3 Hurricane-1 Tropical Storm Tropical Depression Tropical Depression Tropical Depression Tropical Depression ©Mr. Bealer’s Earth Science Lab Manual for the 2006-2007 school year. Solvay High School, Solvay, NY 13209. Permission given to all certified teachers to use or modify for their students in non-for-profit activities. 1 Name: ______________________ Date: ________ Class Period: ________ Analysis Questions 1. Identify the wind speed and air pressure on August 28th at 21:00z. Be sure to include the correct units. a) wind speed = ______________________ b) air pressure = ______________________ 2. In general, how did wind speed change (a) before August 28th at 21:00z and (b) after August 28th at 21:00z? a) _________________________________________________________________ b) _________________________________________________________________ 3. In general, how did air pressure change (a) before August 28th at 21:00z and (b) after August 28th at 21:00z. a) _________________________________________________________________ b) _________________________________________________________________ 4. Based upon your answers from questions 3 and 4, what is the general relationship between changes in air pressure and wind speed in a hurricane? ___________________________________________________________________ ___________________________________________________________________ 5. a) In what direction from Miami, FL was Hurricane Katrina on August 25th at 21:00z. ___________________________________________________________________ b) What happened to the air pressure and wind speed as Hurricane Katrina Moved over Florida? ___________________________________________________________________ ___________________________________________________________________ 6. New Orleans, LA was one of the most notable cities destroyed by Hurricane Katrina, yet cities located farther inland received much less damage. Why? ___________________________________________________________________ ___________________________________________________________________ 7. From 9:00z on August 26th to 21:00z on August 28th, Hurricane Katrina strengthened significantly. According to the map, where was Katrina located at these times? What did this area provide to the storm to help strengthen it so much? ___________________________________________________________________ ___________________________________________________________________ ©Mr. Bealer’s Earth Science Lab Manual for the 2006-2007 school year. Solvay High School, Solvay, NY 13209. Permission given to all certified teachers to use or modify for their students in non-for-profit activities. 2