Percent of U.S. Mainland in Selected
Drought Ranges -- May 17, 2008
Percentile
Range
Short-Term
Drought Indicator Blend
Long-Term
Drought Indicator Blend
 Current   Anomaly*   Percentile*   Change**   Current   Anomaly*   Percentile*   Change** 
0-30 (D0)   28.78 - 1.40 51.28 -11.68 28.39 - 1.82 51.83 - 2.19
0-20 (D1)   12.70 - 7.44 32.34 -11.59 17.98 - 2.21 54.07 - 0.50
0-10 (D2)    5.14 - 4.94 34.78 - 4.95  7.13 - 3.00 51.35 - 0.12
0-5 (D3)    2.65 - 2.45 45.27 + 0.00  1.01 - 4.12 32.47 - 0.34
0-2 (D4)    2.24 + 0.17 73.65 + 0.00  0.15 - 1.91 36.88 + 0.00
*Anomalies & percentiles based on monthly 1932 - 2001 data from National Climatic Data Center.
**Change from Previous Week's Percentage of U.S. Covered