Update on Tornado and Severe Thunderstorm Threat

The information in the posting immediately below is still valid, especially the safety preparations. 

Here is an updated chart of the tornado, severe thunderstorm and large, even giant, hail threat.

click to enlarge

While all three types of severe weather (tornado, large hail and damaging winds) are possible anywhere in the orange area, I have highlighted the area with the relatively highest likelihood of each type of storm.

There is also the chance of heavy rain and localized flooding.

As of 3:10pm CDT, the first thunderstorms of this event are forming north of McCook, Nebraska.

Please take this seriously by preparing in the way I have outlined below.

For more information, please follow me on Twitter @usweatherexpert.