DES MOINES, Iowa – A spring storm system poised to sweep across the heartland during the final week of April is expected to bring a dangerous, multi-day severe weather event, with forecasters closely monitoring conditions from Oklahoma City and Tulsa to Minneapolis and Duluth.
The threat begins Monday, with the greatest risk appearing to center on Iowa and surrounding portions of Kansas , Minnesota and Wisconsin , where an intensifying low-level jet could increase both the coverage and severity of thunderstorms…