Fine-Resolution 4DVAR Data Assimilation for the Great Plains Tornado Outbreak of 3 May 1999

Zupanski, D., M. Zupanski, E. Rogers, D. F. Parrish, and G. J. DiMego

Wea. Forecasting, 17, 506-525

Read more at http://journals.ametsoc.org/doi/abs/10.1175/1520-0434(2002)017%3C0506%3AFRDAFT%3E2.0.CO%3B2