Chicago braces for back-to-back severe storms Sunday

The Chicago area faces two potential rounds of severe thunderstorms on Sunday, with threats including damaging winds, heavy rain, hail, flash flooding, and a non-zero tornado risk. The first round may arrive around midday as a disturbance from Iowa moves in, followed by a second, more defined round in the late afternoon to evening, potentially lasting into northwest Indiana, with similar threats continuing into Monday before calmer conditions return later in the week.