When should civilians avoid areas that may have UXO?

Civilians should avoid areas that may have unexploded ordnance (UXO) whenever there is a warning sign. Warning signs typically indicate the presence of known or suspected UXO, which can pose a serious safety risk due to their potential to detonate if disturbed. These signs serve as important alerts aimed at protecting individuals from entering hazardous zones.

It is crucial for the safety of civilians to heed these warnings at all times, not just during specific events or weather conditions. While military operations or environmental factors like rain might influence the risk or visibility of UXO, the primary guideline for avoiding such areas is the presence of a warning sign, which is specifically meant to inform and protect the public from danger.