Popping this out to its own thread, hope you don't mind OswaldOswald wrote:Best I can find on alarms.
The following alarm signals are color-coded and may be presented through announcements, flags, sirens or bugles:
Green - Alarm green is announced over the giant voice system or displayed with a green flag. It means that attack is not probable. This is a normal wartime condition. Operations may be resumed. Assume MOPP level 0.
Yellow - Alarm yellow is announced over the giant voice system or displayed with a yellow flag. It means that attack is probable within 30 minutes or less. Seek protective shelter immediately. Assume MOPP level 2 when directed.
Red/Blue - Alarm red may be declared via wavering siren for an air attack, bugle call for a ground attack, announced over the giant voice system or displayed with a red flag. It means that an attack is imminent or in progress. Seek protective shelter immediately. Assume MOPP level 4 when directed and report observed attacks.
Black - Alarm black is declared with a steady siren or tone, announced over the giant voice system or displayed with a black flag. It means that the attack is over; unexploded ordinance hazards and possible NBC contamination are suspected or present. Perform self-aid buddy care and remain under overhead cover until otherwise directed.
Deployed areas may have different signals depending on the needs of that duty station. Incoming Airmen are notified of alarm deviations when deploying to such areas. A review of the Airman's Manual is a great way to help prepare for a short tour, deployment or readiness exercise.
Just had a hard time finding it in the main thread before, so adding it here will help find it in future!