Drought Coverage per Short- and Long-Term Indicator Blends

Percent of U.S. Mainland in Selected
Drought Ranges -- September 9, 2006
Percentile
Range
Short-Term
Drought Indicator Blend
Long-Term
Drought Indicator Blend
 Current   Anomaly*   Percentile*   Change**   Current   Anomaly*   Percentile*   Change** 
0-30 (D0)   38.96 + 8.78 74.32 + 7.31 50.65 +20.44 84.94 - 3.27
0-20 (D1)   29.24 + 9.10 78.54 +13.17 34.35 +14.16 83.44 - 2.39
0-10 (D2)   11.49 + 1.41 67.96 + 6.13 11.26 + 1.14 66.87 + 1.31
0-5 (D3)    4.89 - 0.21 65.09 + 3.09  3.21 - 1.92 55.26 + 0.83
0-2 (D4)    0.48 - 1.59 43.85 + 0.48  1.30 - 0.76 64.26 + 0.66
*Anomalies & percentiles based on monthly 1932 - 2001 data from National Climatic Data Center.
**Change from Previous Week's Percentage of U.S. Covered