Percent of U.S. Mainland in Selected
Drought Ranges -- July 28, 2007
Percentile
Range
Short-Term
Drought Indicator Blend
Long-Term
Drought Indicator Blend
 Current   Anomaly*   Percentile*   Change**   Current   Anomaly*   Percentile*   Change** 
0-30 (D0)   48.52 +18.34 87.01 - 8.57 44.63 +14.42 79.67 - 2.69
0-20 (D1)   34.00 +13.86 85.83 - 9.51 32.09 +11.91 80.08 - 0.62
0-10 (D2)   19.06 + 8.98 86.80 - 9.07 17.64 + 7.51 82.72 - 2.67
0-5 (D3)    9.85 + 4.75 85.97 - 7.76 10.08 + 4.95 85.87 - 1.49
0-2 (D4)    4.36 + 2.29 86.73 - 3.32  4.47 + 2.40 88.36 - 0.21
*Anomalies & percentiles based on monthly 1932 - 2001 data from National Climatic Data Center.
**Change from Previous Week's Percentage of U.S. Covered