Percent of U.S. Mainland in Selected
Drought Ranges -- December 4, 2006
Percentile
Range
Short-Term
Drought Indicator Blend
Long-Term
Drought Indicator Blend
 Current   Anomaly*   Percentile*   Change**   Current   Anomaly*   Percentile*   Change** 
0-30 (D0)   20.20 - 9.98 29.22 + 0.73 37.00 + 6.79 68.42 - 0.46
0-20 (D1)    7.95 -12.19 18.77 + 0.12 21.12 + 0.93 61.71 - 0.56
0-10 (D2)    2.02 - 8.05 14.45 - 0.30  7.17 - 2.96 51.41 - 1.43
0-5 (D3)    0.38 - 4.72 15.38 - 0.64  3.87 - 1.26 60.10 - 0.19
0-2 (D4)    0.00 - 2.07  0.00 + 0.00  1.43 - 0.63 65.27 + 0.27
*Anomalies & percentiles based on monthly 1932 - 2001 data from National Climatic Data Center.
**Change from Previous Week's Percentage of U.S. Covered