CU-Boulder ATOC 1070 - LAb12 (2 pages)

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LAb12



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LAb12

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School:
University of Colorado at Boulder
Course:
Atoc 1070 - Weather and the Atmosphere Laboratory
Weather and the Atmosphere Laboratory Documents

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Sarah Rose Lab 12 Severe Thunderstorms Section 8 Mike M Liz D Jeannie N Question 1 Case number 4 5 and 6 were all air mass storms They al had negative lifted indexes ranging from 3 5 to 7 5 These air mass windstorms also had relatively low wind shears from 5 17 knots in comparison to the super cell storms We also recorded that 2 out of the three air mass storms did not have a capping inversion For the super cells storms all had capping inversions All of the super cells also had relatively high wind shear ranging from 30 69 knots these storms also had negative lifted index ranging form 7 5 to 3 1 If a storm occurs the wind shear had the biggest effect on the severity The lifting index tells you if a storm is possible where the wind shear determines the intensity Hence why air mass storms which have low wind shear are less intense then super cells Question 2 For exercise two we determined that case 1 2 met the criteria of a air mass weak thunderstorms because case 1 and 2 had lower wind shears We then decided that the two super cell cases were 3 and 4 because their wind shears were higher then all the other cases and wind shear determine severity But super cells also have to meet other criteria like negative lifted index and capped inversion which cases 3 and 4 do After we determined the two that had factors closest to super cell storms we concluded that case number 4 would be most likely to produce tornadoes because case number 4 is the strongest of all the cases based on it s wind shear of 78 knots and only the most sever of storms produce tornadoes Summary Conclusion In this lab we were given graphs of plotted data that were taken during different storms with this data we recorded key data points in a spreadsheet to then determine which of the cases was the most severe Potential places for error in this lab were our subjective eye balling of measurements We had to guess as best we could points on the graph and round to the nearest degree when it came to wind



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