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Wednesday, December 6, 2023
|Monthly Tornado Warning Siren Test
The outdoor warning system for Johnson County is tested at 11:00am on the first Wednesday of the month. No tests are conducted when extreme cold and/or heavy icing might damage the equipment. Tests are also canceled whenever there is severe weather (or potential severe weather) occurring in the local area and activating the outdoor warning system might cause confusion as to whether the activation is real event. If the monthly test is canceled, it will typically be postponed one week to the second Wednesday of the month at 11 AM. If the rescheduled test is also canceled, no additional testing will be performed that month.