What factor can lift advection fog into low stratus clouds?

Lift of advection fog into low stratus clouds occurs primarily due to a significant increase in wind speed, such as 15 knots or stronger. This wind can provide the necessary movement of air, which may push the fog upwards as it interacts with other atmospheric conditions. When the wind rises, it can carry the moisture from the surface (where advection fog typically forms) to higher altitudes, allowing it to transition into low stratus clouds.

While other factors like high humidity levels play a role in the formation and persistence of fog, they do not directly contribute to the lifting process. High temperatures and nighttime cooling are also essential in creating specific weather conditions, but they do not specifically address the lifting mechanism needed for the advection fog to transform into low stratus clouds. Thus, the interaction of stronger winds acts as a crucial factor in this lifting process, making it the correct answer.