Amir Mohsen
متخصص بخش هواشناسی
نقشه cape فردا بعد از ظهر:
2. How is CAPE determined?
The positive area on a sounding is proportional to the amount of CAPE. The higher the positive area, the higher the CAPE. The positive area is that area where the parcel sounding is to the right (warmer) than the environmental sounding. The units of CAPE are Joules per kilogram (energy per unit mass). The sounding at the bottom of this page shows a CAPE value of 2,032 Joules per kilogram.
3. Operational significance of CAPE:
| CAPE |
| 1 - 1,500 | Positive |
| 1,500 - 2,500 | Large |
| 2,500+ | Extreme |
High CAPE means storms will build vertically very quickly. The updraft speed depends on the CAPE environment.
Hail: As CAPE increases (especially above 2,500 J/kg) the hail potential increases. Large hail requires very large CAPE values.
Downdraft: An intense updraft often produces an intense downdraft since an intense updraft will condense out a large amount of moisture. Expect isolated regions of very heavy rain when storms form in a large or extreme CAPE environment.
Lightning: Large and extreme CAPE will produce storms with abundant lightning.
