Question 835 Deck General

The correct answer is B) an electrical storm. According to U.S. regulations, the presence of an electrical storm or thunderstorm would require the immediate stoppage of cargo operations involving Class 1 explosive materials and the securing of all hatches. This is because the electrical discharges associated with thunderstorms pose a significant risk of igniting explosive vapors or materials, which could lead to a catastrophic incident. The other options, such as moderate onshore winds or snow flurries, do not inherently present the same level of danger to cargo operations involving explosives.