Storms moving along in this type of flow pattern usually weaken. This condition will minimize convective activity, including vertical development of cumulus clouds, which might otherwise lead to shower activity. An inversion is a very stable condition which may trap smoke or fog near the earth's surface. Stable conditions are not favorable for turbulent surface winds or erratic fire behavior. Sinking air usually found around high pressure systems.
Strong subsidence leads to very warm, dry air aloft, often appearing at high elevations first.
It may arrive at day or night. Poor humidity recovery at higher elevations is usually a sign of strong subsidence. The change in temperature over a given period of time. Generally, the period between late evening and sunrise. Windy or cloudy conditions will tend to produce slow temperature recovery, while clear, calm weather can cause rapid recovery.