What is the proper order of THOR Alert colors from highest to lowest severity?

• A. Red, Orange, Yellow, Green
• B. Green, Yellow, Orange, Red
• C. Red, Yellow, Orange, Green
• D. Orange, Red, Green, Yellow

Answer: (A)

THOR Alert uses a four-color scale to communicate threat severity. Red indicates the highest level of threat or urgency, followed by Orange, then Yellow, and Green as the lowest level. Therefore the correct order from highest to lowest severity is Red, Orange, Yellow, Green. This progression guides response posture: red may trigger full mobilization and decisive action; orange signals heightened readiness and increased protective measures; yellow calls for vigilance and preparedness; green represents normal operations. If any option places colors out of that sequence, or treats green as more severe than yellow or orange, it doesn’t match the standard THOR framework.