El Reno

Norman Forecast Office / National Weather Service

The National Weather Service issued a report Friday examining last May's tornados in Oklahoma. The assessment encourages the Norman Forecast Office to develop a plan for more than one severe weather event at a time.

On May 31, eight people died in the El Reno tornado while 13 died from flash flooding that followed heavy rain. National Weather Service Meteorologist Kenneth Harding says each element of a multiple warning system should be weighted based upon its urgency and severity.

The National Weather Service unveiled a new training video Wednesday for storm spotters and chasers with the hopes of avoiding a repeat of the tragedy that followed the May 31, 2013 tornado near El Reno.

Motivated by adventure, science, and awe at the power of nature, stormchasers are risking it all to get closer to tornadoes than ever before. Last spring, during the deadly Oklahoma City outbreaks, they got more than they bargained for.