when a PDS is issued it is for a very violent tornado, but it can also be for hurricanes, wildfires, flash flooding, or even ...

PDS warnings were first used to warn of tornado outbreaks in the Midwest. More than a decade ago, three meteorologists proposed expanding their use to disasters such as ice storms, floods ...

PDS warnings were first used to warn of tornado outbreaks in the Midwest. More than a decade ago, three meteorologists proposed expanding their use to disasters such as ice storms, floods ...

Johns, in conjunction with a tornado watch.That came after a ... and forecasters can more reliably issue severe warnings, Howell said.The PDS term appeared in newspaper articles such as an ...