Douglas County officials have postponed the infrared survey mission photo flight until at least Friday because of rain in the forecast.

Criteria for the mission include sunny skies and no rain for at least 24 hours. The next possible time window for the flight begins on Friday, according to county officials. The flight has been rescheduled several times because of weather issues.

As part of the mission, a helicopter will fly over several county buildings and allow the county to survey the conditions of the roofs.

The following buildings will be surveyed:

• Judicial and Law Enforcement Center, 111 E. 11th St.

• Douglas County Jail, 3601 E. 25th St.

• Douglas County Fairgrounds, Building 21, 2120 Harper St.

• Douglas County Youth Services, 330 Industrial Lane.