'Outflow Boundary' Cloud Structure
O pardon, Sir, it doth; and yon grey Lines,
That fret the Clouds, are Messengers of Day.
William Shakespeare, The Tragedie of Julius Caesar, Actus Secundus
air rises up at the border of warm-humid and cold air masses flowing one
to the other. Therefore it is cooled down, which leads to the condensation.
A part of the regarded cloud structures is connected with
large more-cellular thunderclouds, which were called as
"Cloud Torch" Structures.
Outflow boundary develops if a cold front that is connected
with the low pressure area or large thunderstorm cell (general: Mesoscale
Convective system) penetrates wedge-like into the offshore warm sector.
The sickle-like structures can not rare form also without
The "Outflow Boundary" cloud structure is normally
observed within a zone ±30° by the equator.
| Global occurrence
of 'Outflow Boundary' Structure
MATE, MODULE 01--SURFACE WEATHER OBSERVATIONS