Percent of U.S. Mainland in Selected
Drought Ranges -- May 10, 2008
Percentile
Range
Short-Term
Drought Indicator Blend
Long-Term
Drought Indicator Blend
 Current   Anomaly*   Percentile*   Change**   Current   Anomaly*   Percentile*   Change** 
0-30 (D0)   40.47 +10.28 76.79 + 8.56 30.59 + 0.38 55.10 + 2.60
0-20 (D1)   24.30 + 4.16 68.67 + 4.92 18.48 - 1.71 55.05 + 0.85
0-10 (D2)   10.09 + 0.01 62.38 + 1.70  7.25 - 2.88 51.54 - 0.75
0-5 (D3)    2.65 - 2.45 45.27 + 0.00  1.35 - 3.78 36.29 - 0.18
0-2 (D4)    2.24 + 0.17 73.65 + 1.35  0.15 - 1.91 36.88 - 0.30
*Anomalies & percentiles based on monthly 1932 - 2001 data from National Climatic Data Center.
**Change from Previous Week's Percentage of U.S. Covered