Risk of severe storms Sunday night upgraded to 4 out of 5. What does that mean? - WSMV 4

* Risk of severe storms Sunday night upgraded to 4 out of 5. What does that mean?  WSMV 4
* First Alert Forecast: Powerful storms expected overnight, some severe  WSMV 4
* TN Forecast: Severe weather threat continues into Memorial Day weekend | Timeline  WKRN News 2
* Tornado Watch in effect for parts of the Mid-South  WREG NewsChannel 3
* CODE RED ALERT: Upgraded risk for severe storms, tornadoes in Middle Tennessee tonight  WZTV


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