Today is the 27 year anniversary of one of the most intense Plains outbreaks ever recorded in April. The outbreak was very similar to the 4/14/2012 outbreak in terms of overall conditions, timing and location, but with many more strong/violent tornadoes. The best known tornado from this outbreak would be the Andover, Kansas F5, which is probably in the top 10 strongest tornadoes ever recorded. The wind-rowing and debris granulation left behind was some of the most extreme ever witnessed, and it was one of only a few tornadoes to actually rip apart vehicles and scatter the pieces for hundreds of yards. The Red Rock, Oklahoma F4 gets talked about a fair bit around here, but is surprisingly obscure compared to the Andover tornado. Although it went through rural areas, the damage it left was extreme in places and the recorded winds of 286 miles per hour are still the third-highest ever recorded in a tornado. The damage intensity, path length and extreme recorded winds are very similar to the El Reno EF5 (which, weirdly enough touched down almost exactly 20 years and one month after the Andover tornado): There were other tornadoes that would have been considered historic on 4/26/91, but have been overshadowed by the Andover and, to a point, the Red Rock tornadoes. The Ooglah, Oklahoma tornado, for instance, took place in an area that's normally a dead zone for violent tornadoes. Overall I would consider the 4/26/91 outbreak one of the most intense and important outbreaks on record in the Plains in April.