Percent of U.S. Mainland in Selected
Drought Ranges -- September 8, 2007
Percentile
Range
Short-Term
Drought Indicator Blend
Long-Term
Drought Indicator Blend
 Current   Anomaly*   Percentile*   Change**   Current   Anomaly*   Percentile*   Change** 
0-30 (D0)   35.77 + 5.58 67.29 - 9.39 46.76 +16.55 82.08 - 2.16
0-20 (D1)   28.52 + 8.38 77.84 - 5.44 34.25 +14.07 83.23 - 1.95
0-10 (D2)   19.20 + 9.12 86.85 - 3.19 20.84 +10.72 87.30 - 0.98
0-5 (D3)   10.48 + 5.38 87.00 - 4.64 12.19 + 7.06 88.82 + 0.31
0-2 (D4)    6.20 + 4.13 90.85 - 1.48  5.21 + 3.14 89.82 - 0.84
*Anomalies & percentiles based on monthly 1932 - 2001 data from National Climatic Data Center.
**Change from Previous Week's Percentage of U.S. Covered