The Scientific World Journal

Research Article

Comparison of Thunderstorm Simulations from WRF-NMM and WRF-ARW Models over East Indian Region

Table 2

The different stability indices and their critical values for severe thunderstorm.
Stability indicesDescriptionCritical values for severe thunderstorm
Lifted index T 5 0 0 − T p a r c e l <−3
K index ( T 8 5 0 − T 5 0 0 ) + T d 8 5 0 − ( T 7 0 0 − D T 7 0 0 ) >33
Total Totals ( T 8 5 0 + T d 8 5 0 ) − 2 ( T 5 0 0 ) >44
Showalter index T 5 0 0 − T 8 5 0 <−2
SWEAT index 1 2 T d 8 5 0 + 2 0 ( T T − 4 9 ) + 2 f 8 5 0 + f 5 0 0 + 1 2 5 ( s + 0 . 2 ) >250
CAPE ∫ 𝑧 𝑛 𝑧 𝑓 𝑔 ( T v p a r c e l − T v e n v / T v e n v ) d z >1500
CIN ∫ 𝑧 t o p 𝑧 b o t t o m 𝑔 ( T v p a r c e l − T v e n v / T v e n v ) 𝑑 𝑧 <50