Storms swept across Iowa Sunday causing a severe thunderstorm watch for Washington County and a severe thunderstorm warning for Keokuk County. The thunderstorm watch was issued at approximately 6: 45 p.m. for most of Southeast Iowa. Hail nearly nine-tenths of an inch in diameter was reported in Sigourney. Near North English hail a quarter-of-an-inch in diameter was reported. The watch for Washington County expired at 9:30 p.m. Listen to KCII for weather updates.