Percent of U.S. Mainland in Selected
Drought Ranges -- July 22, 2007
Percentile
Range
Short-Term
Drought Indicator Blend
Long-Term
Drought Indicator Blend
 Current   Anomaly*   Percentile*   Change**   Current   Anomaly*   Percentile*   Change** 
0-30 (D0)   57.09 +26.91 94.29 - 2.21 47.32 +17.11 82.64 + 0.48
0-20 (D1)   43.51 +23.37 93.97 - 6.06 32.71 +12.53 81.09 - 0.06
0-10 (D2)   28.12 +18.05 94.03 - 4.88 20.31 +10.18 86.88 + 0.23
0-5 (D3)   17.61 +12.51 94.49 - 3.89 11.57 + 6.44 87.99 + 0.19
0-2 (D4)    7.68 + 5.61 93.81 + 1.52  4.68 + 2.61 88.78 + 1.62
*Anomalies & percentiles based on monthly 1932 - 2001 data from National Climatic Data Center.
**Change from Previous Week's Percentage of U.S. Covered