What weather condition is noted for affecting ground operations by limiting target acquisition?

Humidity is recognized for its impact on ground operations, particularly in terms of limiting target acquisition. High levels of humidity can create a haze in the atmosphere which affects visibility. This haze can obscure outlines and details of potential targets, making it more challenging for troops to identify and accurately aim at targets. Furthermore, high humidity can affect how some optical devices perform, reducing their effectiveness.

While other weather conditions like high winds, rainfall, and snowfall also impact ground operations, their primary effects are different. High winds can disrupt flight paths for aerial surveillance, rainfall can obscure the ground physically and create muddy conditions, and snowfall can cover and conceal targets rather than just limiting visibility. Therefore, humidity specifically stands out in this context as a significant factor directly affecting the ability to acquire targets.