* WHAT...Temperatures as low as 33 will result in frost formation.

* WHERE...In Alabama, Escambia, Baldwin Inland, and Mobile Inland Counties. In Florida, Escambia Inland, Okaloosa Inland, and Santa Rosa Inland Counties. In Mississippi, George, Greene, Perry, and Stone Counties.

* WHEN...From midnight tonight to 8 AM CST Saturday.

* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.