WICHITA, Kan. (AP) — National Weather Service branches in Wichita and Tulsa, Oklahoma, are re-enacting a deadly 1991 tornado outbreak on social media a week after the threat of nasty weather forced them to postpone a similar exercise.

#kswx Join us on May 3rd as we live tweet the #Andover25th tornado & how the NWS has since changed! #Outbreak1991 pic.twitter.com/CUfirF0fKA

— NWS Wichita (@NWSWichita) May 2, 2016

       

Join us and @NWSTulsa on Tuesday, May 3rd to reenact the events of the April 26th, 1991 Tornado Outbreak #kswx #nws pic.twitter.com/eZ8Tjhqt1e — NWS Wichita (@NWSWichita) May 1, 2016

The Wichita Eagle reports the Wichita office will focus on conditions leading to an F5 tornado that killed 17 people and injured more than 200 in Andover, south Wichita and McConnell Air Force Base on April 26, 1991.

The first tweets Tuesday will focus on the atmospheric environment on that day. The Wichita branch will then live-tweet the actual event starting with the first tornado warning at 4:36 p.m.

Meterologist Vanessa Pearce says there will be about 60 tweets issued by the Wichita branch.