A 'direct low-pressure system' refers to a synoptic-scale atmospheric disturbance characterized by a region of relatively lower surface pressure that follows a 'straight or minimally deviating trajectory' toward a target area. Such systems form due to 'horizontal pressure gradients' and are sustained by processes like 'surface convergence', 'rising moist air', and latent heat release. In a direct-track scenario, the steering flow in the mid- to upper-level atmosphere (typically governed by prevailing wind patterns such as the subtropical westerlies or monsoonal flow) guides the system along a consistent path without significant curvature or recurvature. This results in a more 'predictable movement and concentrated impact zone', often associated with organized cloud bands, persistent rainfall, and potentially strong winds depending on the system’s intensity.
