WHEELING, W.Va. (WTRF) – The National Weather Service out of Pittsburgh has issued a Frost Advisory for portions of the Ohio Valley.

Counties Included: Guernsey and Noble County, Ohio and Tyler County, West Virginia.

The advisory for Ohio Counties will go into effect at 4 AM Wednesday and expire at 9 AM Wednesday.

For Tyler County, the advisory will go into effect at 3 AM and expire at 8 AM Wednesday.

Temperatures tonight into Wednesday morning will dip down into the upper 30s to low 40s in some of the valleys across Ohio.

Frost could harm sensitive vegetation if left uncovered or not pulled in.