Grey alert is a long abandoned Fall out warning. It would entail a long blast on the siren, then shut off by shutters, then a short siren blast, cut off again, then a long blast agin...and so on for about 2-3 minutes.Robert Gift wrote:What's a gray alert?Archon wrote:They pulsed sirens for a Grey Alert
-
danwisbey85
- Registered User
- Posts: 189
- Joined: Mon May 15, 2006 9:31 pm
- Location: Dorset, UK
- Contact: Website
Who is online
Users browsing this forum: No registered users and 34 guests