* WHAT...Temperatures as low as 33 will result in frost formation.
* WHERE...Portions of southeast Ohio and central, northern, and western West Virginia.
* WHEN...Until 9 AM EDT this morning.
* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.
* ADDITIONAL DETAILS...Isolated sub-freezing temperatures could occur across the typical valley cold spots away from lakes and rivers.