Clear Slot - A local region of clearing skies or reduced cloud cover, indicating an intrusion of drier air; often seen as a bright area with higher cloud bases on the west or southwest side of a wall cloud.
Clear Slot
With respect to severe thunderstorms, a local region of clearing skies or reduced cloud cover, indicating an intrusion of drier air; often seen as a bright area with higher cloud bases on the west or southwest side of a wall cloud.
The clear slot knifing between (A) and (B) and the new overshooting top indicates that (B) is now the dominant updraft.
It often is visible as a clear slot wrapping around the wall cloud. Scattered large precipitation particles (rain and hail) at the interface between the clear slot and wall cloud may show up on radar as a hook or pendant; ...
The region may appear as a rain free clear slot below the rain-free base bounded by the RFD and FFD regions, if any. Not to be confused with the V NOTCH radar feature. Causes part of the BWER radar feature.
cloud-free) air which wraps west- or south-westwards into the southern and eastern parts of a synoptic scale or mesoscale low pressure system. A dry slot is seen best on satellite photographs. A dry slot should not be confused with clear slot, ...
 See also: Clear, Storm, Cloud, Tornado, Thunderstorm
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