The Cheyenne/Laramie County Emergency Management Agency will be testing the Outdoor Warning Siren system at 10 a.m. Friday July 4th for Pine Bluffs and at 12 p.m. Friday July 4th for Cheyenne and the surrounding areas.

The system will sound a steady signal for somewhere between 1 and 3 minutes. Residents are reminded the alert is only a test, rather than an actual emergency.