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Simulating the 20 May 2013 Moore, Oklahoma tornado with a 100-metre grid-length NWP model

Hanley, K. E., Barrett, A. I. and Lean, H. W. (2016) Simulating the 20 May 2013 Moore, Oklahoma tornado with a 100-metre grid-length NWP model. Atmospheric Science Letters, 17 (8). pp. 453-461. ISSN 1530-261X

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To link to this item DOI: 10.1002/asl.678

Abstract/Summary

Since 2013, the Met Office have run a 2.2 km horizontal gridlength version of the Unified Model (MetUM) as part of the National Oceanographic and Atmospheric Administration's Hazardous Weather Testbed Spring Forecasting Experiment. In this study, we perform high resolution MetUM simulations of the 20 May 2013 Oklahoma tornado outbreak at horizontal gridlengths between 2.2 km and 100 m. Here we present results showing that at 2.2 km gridlength the MetUM is able to simulate supercell-like storms whereas at O(100 m) gridlength it is able to simulate realistic-looking supercells with tornado-like vortices. This opens up the opportunity for using such simulations to highlight areas of enhanced tornado risk ahead of time.

Item Type:Article
Refereed:Yes
Divisions:Faculty of Science > School of Mathematical, Physical and Computational Sciences > Department of Meteorology
ID Code:68576
Publisher:John Wiley & Sons

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