Severe Weather Threat this Evening, February 19. Tornadoes possible.

A low pressure system will move through the Ohio Valley, bringing showers and scattered thunderstorms. Some storms may be severe and/or produce locally heavy rainfall. Keep an eye on the forecast for updates and make sure you have multiple ways to receive weather alerts. 

   ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS ACROSS SOUTHERN
   ILLINOIS AND SOUTHERN INDIANA...

   ...SUMMARY...
   Severe thunderstorms including a few tornadoes, large hail and
   damaging wind gusts are expected across parts of the Midwest and
   lower Ohio Valley today. 

   Increasing storm development should occur by late morning/midday
   across eastern Missouri, with maturing/increasingly surface-based
   storms near and just north of the I-70 corridor in southern Illinois
   by early afternoon. A semi-focused zone of peak severe/tornado
   potential may unfold generally near I-70, southward to near I-64,
   across southern Illinois and southern Indiana this afternoon through
   early/mid-evening. Sufficient forcing and boundary layer
   warming/mixing should allow for at least isolated semi-discrete
   development southward into the warm sector, and if so, relatively
   long-lived multi-hour supercells are plausible, with all hazards
   possible, but notably including heightened tornado potential, a few
   of which could be strong (EF2+).

   The tornado potential is greatest in southern Indiana west of Cincinnati, 
   but there is a tornado risk in Cincinnati as well as a risk of damaging 
   winds and large hail. 

   Not everyone will see severe storms but where they occur, all modes of 
   severe weather are possible, including a potentially strong tornado.