One term you will hear when listening to NOAA Weather Radio, storm chasers, and weather experts during storm season is CAPE. Here is a little about what CAPE is and how it pertains to severe weather.
The convective available potential energy or CAPE, is used by weather officials and storm chasers to understand what the potential might be for severe weather, and how powerful those storms might become if they do materialize. You may think that CAPE measurements and predictions of storm power are a subjective thing, like Medifast reviews for example, but that's not actually the case. The potential energy available for convection is expressed mathematically using a standard measurement of energy represented as Joules Per Kilogram. A high CAPE value might also be expressed by storm chasers and weather experts by using the term "high instability". When chasers talk about a highly unstable atmosphere, CAPE values are usually in excess of 2500 J/kg's which would supply ample energy for strong updrafts and violent storms should they develop.
More specifically, CAPE represents the amount of buoyant energy available to speed up a parcel vertically, or the amount of work a parcel does on the environment. Storms require high CAPE values; the higher the CAPE value, the more energy available to promote storm growth. CAPE is especially important when air parcels are able to reach the (LFC) or Layer of Free Convection. To find CAPE from a skew-T thermodynamic diagram like the one below, simply locate the area on the diagram where the parcel sounding (Thick yellow vertical line) is farther to the right (warmer) than the atmosphere sounding (red line). The white shaded region on the sounding below is the area of CAPE.
One term you will hear when listening to NOAA Weather Radio, storm chasers, and weather experts during storm season is CAPE. Here is a little about what CAPE is and how it pertains to severe weather.
The convective available potential energy or CAPE, is used by weather officials and storm chasers to understand what the potential might be for severe weather, and how powerful those storms might become if they do materialize. You may think that CAPE measurements and predictions of storm power are a subjective thing, like Medifast reviews for example, but that's not actually the case. The potential energy available for convection is expressed mathematically using a standard measurement of energy represented as Joules Per Kilogram. A high CAPE value might also be expressed by storm chasers and weather experts by using the term "high instability". When chasers talk about a highly unstable atmosphere, CAPE values are usually in excess of 2500 J/kg's which would supply ample energy for strong updrafts and violent storms should they develop.
More specifically, CAPE represents the amount of buoyant energy available to speed up a parcel vertically, or the amount of work a parcel does on the environment. Storms require high CAPE values; the higher the CAPE value, the more energy available to promote storm growth. CAPE is especially important when air parcels are able to reach the (LFC) or Layer of Free Convection. To find CAPE from a skew-T thermodynamic diagram like the one below, simply locate the area on the diagram where the parcel sounding (Thick yellow vertical line) is farther to the right (warmer) than the atmosphere sounding (red line). The white shaded region on the sounding below is the area of CAPE.
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