Here is the timeline for the Wednesday, March 27th Mock Tornado Drill
900 AM MDT.…The Storm Prediction Center issues a Test Tornado Watch for all counties in Nebraska. The test message will be tone alerted and sent through the Emergency Alert System. The watch will be valid for one hour.
915 AM MDT...Weather Forecast Offices (WFO) that serve Nebraska issue a TEST Tornado Warnings for their Nebraska Counties valid for 20 minutes. This is the time that cities and counties may be sounding sirens.
935 AM MDT.….WFOs across Nebraska issue a Severe Weather Statement cancelling their tornado warning.
1000 AM MDT The test tornado watch expires for all of Nebraska.