DISCUSSION: As a strengthening low pressure system continues to slowly shift eastward across parts of the Central Plains, many densely populated across Missouri, Iowa, Illinois, Arkansas, and Indiana will be "under the gun" through the evening and overnight hours. Due to fairly high dew point temperatures as well as consistently strong southwesterly flow coming into the Central Plains since overnight Monday, the areas highlighted in the graphic above (courtesy of forecasters at NWS Storm Prediction Center in Norman, Oklahoma) will be under the greatest threat. More specifically, due to the relatively warm air temperatures in place at the surface, this has already and will continue to facilitate a fairly buoyant environment for air parcels to ascend with little to no adverse factors affecting their ascension.
These factors combined with the relatively large amount of localized rotation of the wind direction with height across these states will make for an enhanced tornado threat as day moves on and through much of the evening as well. It is for this reason that if you or someone you know is or will be within the confines of the yellow-, orange-, and/or red-shaded regions above, that they remain vigilant tonight and keep a weather radio, cell phone, or alternative device (and with a full charge) nearby to remain updated on this evolving severe weather threat through the evening and overnight hours. Be sure to stay tuned right here at the Global Weather and Climate Center for updates on this latest severe weather threat!
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©2017 Meteorologist Jordan Rabinowitz