Table 1.

SPEI wet and dry classification criteria.

Wet and dry level	Extremely Wet	Heavy wet	Moderately wet	Normal state	Moderate drought	Severe drought	Extreme drought
SPEI value	SPEI > 2	1.5 < SPEI ≤2	1 < SPEI ≤1.5	−1 < SPEI ≤1	−1.5 < SPEI ≤−1	−2 < SPEI≤ −1.5	SPEI≤ −2