KI = 38
KI = (T850 - T500)
+ T
d850
- (T700 - T
d700)
= (18 - (-15)) + 13
- (7 - (-1))
= 38
What is the potential for thunderstorm activity?
a. Low
b. Moderate
c. High
Correct. The K index value of 38 indicates a potential for widespread thunderstorm activity in the sounding area.
Incorrect. Recall that thunderstorm probability ranges from very low when KI < 20
(KI < 15 west of the Rocky Mountains) to a likelihood of widespread
activity when KI > 35 (KI > 30 west of the Rocky Mountains).