SPI | SPI Category |
≥2.00 | Extremely Wet |
1.50 - 1.99 | Severely Wet |
1.00 - 1.49 | Moderately Wet |
0 - 0.99 | Mildly Wet |
−0.99 - 0 | Mildly Drought |
−1.49 - −1.00 | Moderate Drought |
−1.99 - −1.50 | Severe Drought |
≤−2.00 | Extreme Drought |