PDS Tornado Watch # 199 is coming for Oklahoma. This is only the second watch in SPC history where every category of watch probabilities (torn, wind, hail) are at greater than 95%.
— NWS Storm Prediction Center (@NWSSPC) May 20, 2019
The only other watch like this was issued for Alabama on 27 April 2011. pic.twitter.com/BgpjKBMffL