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Clouds parameters: BL clouds pct / small cu base / BL overcast / CAPE / precipitation   /  Wind parameters  /  thermal parameters  /  sfc parameters
Quick help: CAPE (Convective Available Potential Energy) is a measure of the atmospheric stability affecting deep convective cloud formation above the CBL and not inside CBL. So it is not a measure of the strength of thermals. Higher values indicates greater potential for strong thunderstorm. Thunderstorm probabilities according to CAPE values are: 0=none, 300-1000=weak, 1000-2500=moderate, 2500-5300=strong. The chart below represents the cumulonimbus (Cb) and thunderstorm trend. It is an experimental and empirical parameter. It takes into account the CAPE (Convective Available Potential Energy) and the trigger areas (global upwind) to arbitrarily estimate the risk of big vertical cumulus development from 0% (no risk) to 100% (maximal risk) on some domain's area where the CAPE is high and the trigger upwind is strong.
Aide rapide: CAPE (Convective Available Potential Energy) est une valuation de la probabilit d'orage (instabilit au-dessus de la couche convective). Plus les valeurs sont grandes plus le risque est lev. Comme reprage : 0=aucun risque. 300-1000=risque faible, 1000-2500=risque modr. Au-dessus de 2500=risque lev. La carte ci-dessous reprsente une tendance au surdveloppement cumuliforme vertical (cb) et au orage. Il s'agit d'un paramtre empirique et exprimental qui tient compte la fois du CAPE et des zones d'ascendances dclenchant les orages. L'chelle arbitraire va de 0% (aucun risque) 100 % (risque maximal).

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