Peterson Air Force Base personnel and local population will hear an extended test of the Giant Voice system at noon July 13.

The Giant Voice will play the weather emergency tone, or a solid siren, for one minute. The tone is to test of the Giant Voice system, specifically the tornado warning notification, and ensure it is fully operational.

Giant Voice tests normally occur weekly on Fridays, using a shorter test.

The command post will alert all Peterson personnel through the ATHOC messaging system before the test occurs.