The authors wish to thank Bruce Williams for preparing the radar for the experiment, and David Dowell, Herb Stein, Todd Crawford, and Todd Hutchinson for their help during the storm chases. This work was supported by NSF Grant ATM-9616730 and a supplement to NSF Grant ATM-9320672 at UMass and by supplements to NSF Grants ATM-9019821 and ATM-9302379 at OU.
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