The KCII Severe Weather Action Team responded to a severe thunderstorm warning in Washington County last night. The warning was issued for northern Washington County as well as Keokuk, Iowa, Johnson and Muscatine counties at approximately 11:20 p.m. Sirens reportedly sounded in Iowa City for strong winds. Lightning and wind was reported in the KCII listening area. Four members of the KCII team were on air for the storm as it rolled through the area until the warning expired at midnight.