Drought Coverage per Short- and Long-Term Indicator Blends

Percent of U.S. Mainland in Selected
Drought Ranges -- July 30, 2006
Percentile
Range
Short-Term
Drought Indicator Blend
Long-Term
Drought Indicator Blend
 Current   Anomaly*   Percentile*   Change**   Current   Anomaly*   Percentile*   Change** 
0-30 (D0)   53.28 +23.10 91.35 + 3.95 56.26 +26.05 89.15 + 3.74
0-20 (D1)   41.22 +21.08 92.42 + 5.12 36.72 +16.54 85.46 + 2.46
0-10 (D2)   27.71 +17.63 93.97 + 5.49 10.70 + 0.57 65.32 + 0.77
0-5 (D3)   15.88 +10.78 93.59 + 3.48  2.07 - 3.06 43.16 - 0.84
0-2 (D4)    6.20 + 4.13 90.85 + 1.69  0.14 - 1.92 36.77 - 0.02
*Anomalies & percentiles based on monthly 1932 - 2001 data from National Climatic Data Center.
**Change from Previous Week's Percentage of U.S. Covered