What is a major drawback of bad weather during reconnaissance missions?

Bad weather is a significant challenge for reconnaissance missions, particularly because it can cause interference to aircraft operations. Adverse weather conditions like heavy rain, fog, snow, or strong winds can severely affect the ability of reconnaissance aircraft to operate effectively. Visibility can be drastically reduced, making it difficult for pilots and sensors to identify and gather intelligence on the ground. Additionally, poor weather may limit flight altitudes or delay missions altogether, impacting the overall effectiveness and timeliness of reconnaissance activities.

In contrast, the other options do not accurately reflect the impact of bad weather on reconnaissance missions. While bad weather might have effects on enemy morale, it does not inherently increase it. It also does not enhance sensor performance; in fact, most sensors perform best under optimal weather conditions. Lastly, while reconnaissance might still be conducted in bad weather, it does not eliminate the need for it; instead, it complicates the execution and effectiveness of such missions.