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Air Mass Thunderstorm
The air mass thunderstorm is common in Florida. As with all thunderstorms, it contains thunder and therefore has lightning. The air mass thunderstorm lasts approximately one hour and has a very distinctive life cycle.
Cumulus Stage: Rising air, or updraft, cools and forms the cloud. The rising air is occurring in an environment that is favorable for convection. Lifting mechanism include solar heating or convergence from a sea breeze. It is not raining during this stage of the thunderstorm.
Mature Stage: As the cloud continues to grow, precipitation particles form and fall from the cloud. The precipitation falls into the updraft. The falling particles drag air down with them. This sinking air is referred to as downdrafts. Entrainment into the downdraft results in some evaporation of the precipitation, which causes a cooling which makes the air more dense, thus increasing the downdraft. Rain begins to reach the surface. Hail may also make it to the surface, but they are not very large.
Dissipating Stage: When the downdrafts encompass the storm, the updrafts are shut off and the storm begins to die. The intensity of the rain decreases.
Prior to the development of a thunderstorm, the air near the surface is often warm and moist. With the downdrafts come cool air and the temperature at the surface drops. After the storm passes, the temperature may begin to rise again.
Dus een beetje type single cell? Onplopt zich en dooft vlug weer uit... Alleen is een single-cell nog ietsje anders hier dan die vochtige warme airmass thunderstorms of niet
?
Air Mass Thunderstorm
The air mass thunderstorm is common in Florida. As with all thunderstorms, it contains thunder and therefore has lightning. The air mass thunderstorm lasts approximately one hour and has a very distinctive life cycle.
Cumulus Stage: Rising air, or updraft, cools and forms the cloud. The rising air is occurring in an environment that is favorable for convection. Lifting mechanism include solar heating or convergence from a sea breeze. It is not raining during this stage of the thunderstorm.
Mature Stage: As the cloud continues to grow, precipitation particles form and fall from the cloud. The precipitation falls into the updraft. The falling particles drag air down with them. This sinking air is referred to as downdrafts. Entrainment into the downdraft results in some evaporation of the precipitation, which causes a cooling which makes the air more dense, thus increasing the downdraft. Rain begins to reach the surface. Hail may also make it to the surface, but they are not very large.
Dissipating Stage: When the downdrafts encompass the storm, the updrafts are shut off and the storm begins to die. The intensity of the rain decreases.
Prior to the development of a thunderstorm, the air near the surface is often warm and moist. With the downdrafts come cool air and the temperature at the surface drops. After the storm passes, the temperature may begin to rise again.
Dus een beetje type single cell? Onplopt zich en dooft vlug weer uit... Alleen is een single-cell nog ietsje anders hier dan die vochtige warme airmass thunderstorms of niet
?
Bericht laatst bijgewerkt: 24-05-2009 18:16
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