Double Afternoon Heat/Warmth Thunderstorm on the Coastal Karst, Developed from a Single Cloudy Body: Small, but Violent and With Dense Hail
The heat/warmth thunderstorms are due to the diurnal overheating of the emerged lands operated by the strong late-spring and summer sun.
It, from late morning, creates ascending currents progressively more intense and that find further "springboard" along the slopes of the reliefs.
Hot currents, if in the presence of humidity in the column of air and/or relatively cold air at high altitude, tend to condense in steam towers, called "cumulus", which develop mainly vertically giving shape to the clouds called "cumulus congestus" and "cumulus nimbus" (which is the evolution of the "congestus").
When the summit of these clouds reaches 8-10000m of altitude tends to freeze completely and to go to the "capillatus" phase with the tops of the towering clouds that from a cauliflower shape ("cumulonimbus calvus"), tend to ravel, broad and expand horizontally (due to the stratospheric thermal inversion), forming the typical anvil structure ("Cumulonimbus capillatus incus") which represents the phase of maximum development of the cloud and indicates for sure the presence of a thunderstorm at its base, even very violent, especially if there is a presence of wet and cool streams, as MCS and Supercells, with alluvial rains and tornado can form from these storms.
The weakened system, then, continues to expand, by inertia, only horizontally and thin up to veil a good part of the surrounding sky with "cirrus cumulus-genite" clouds.
In the evening, without more sun, the process totally ends with the complete clearing of the sky.
In some parts of the Karst Region and in the Alps, during the late spring-summer period, these phenomena are almost daily and they themselves provide the humidity for the following ones.
The sea is less hot and inertially much slower than the land emerged in absorbing heat; this inhibits the diurnal thermoconvex phenomena, but, can activate others during the night, especially in the second half of summer, when it gives heat (ie potential energy) to the troposphere system, activating the marine thermoconvection, which is however less frequent and is best exploited to the passage of a cold frontal system.
Double Afternoon Heat/Warmth Thunderstorm on the Coastal Karst, Developed from a Single Cloudy Body: Small, but Violent and With Dense Hail
The heat/warmth thunderstorms are due to the diurnal overheating of the emerged lands operated by the strong late-spring and summer sun.
It, from late morning, creates ascending currents progressively more intense and that find further "springboard" along the slopes of the reliefs.
Hot currents, if in the presence of humidity in the column of air and/or relatively cold air at high altitude, tend to condense in steam towers, called "cumulus", which develop mainly vertically giving shape to the clouds called "cumulus congestus" and "cumulus nimbus" (which is the evolution of the "congestus").
When the summit of these clouds reaches 8-10000m of altitude tends to freeze completely and to go to the "capillatus" phase with the tops of the towering clouds that from a cauliflower shape ("cumulonimbus calvus"), tend to ravel, broad and expand horizontally (due to the stratospheric thermal inversion), forming the typical anvil structure ("Cumulonimbus capillatus incus") which represents the phase of maximum development of the cloud and indicates for sure the presence of a thunderstorm at its base, even very violent, especially if there is a presence of wet and cool streams, as MCS and Supercells, with alluvial rains and tornado can form from these storms.
The weakened system, then, continues to expand, by inertia, only horizontally and thin up to veil a good part of the surrounding sky with "cirrus cumulus-genite" clouds.
In the evening, without more sun, the process totally ends with the complete clearing of the sky.
In some parts of the Karst Region and in the Alps, during the late spring-summer period, these phenomena are almost daily and they themselves provide the humidity for the following ones.
The sea is less hot and inertially much slower than the land emerged in absorbing heat; this inhibits the diurnal thermoconvex phenomena, but, can activate others during the night, especially in the second half of summer, when it gives heat (ie potential energy) to the troposphere system, activating the marine thermoconvection, which is however less frequent and is best exploited to the passage of a cold frontal system.