A Frost Advisory has been issued from 5am-9am Thursday morning for the following counties in Iowa, Lyon, Osceola, Dickinson, Sioux, O’Brien, Clay, Plymouth, Cherokee, Buena Vista, Woodbury and Ida.

High Pressure will be moving over NW Iowa tomorrow morning and with light winds and clear skies radationial cooling may possibly lead to frost in these areas. Protect any sensitive plants or bring them inside. This advisory could be expanded later today to include more counties in Iowa.