Percent of U.S. Mainland in Selected
Drought Ranges -- March 11, 2007
Percentile
Range
Short-Term
Drought Indicator Blend
Long-Term
Drought Indicator Blend
 Current   Anomaly*   Percentile*   Change**   Current   Anomaly*   Percentile*   Change** 
0-30 (D0)   21.45 - 8.73 32.65 + 3.55 30.74 + 0.53 55.25 + 6.54
0-20 (D1)   14.40 - 5.75 39.18 + 5.39 13.44 - 6.74 40.17 + 1.87
0-10 (D2)    5.84 - 4.24 40.62 + 1.97  7.21 - 2.92 51.49 - 0.39
0-5 (D3)    0.79 - 4.31 21.64 + 0.34  2.55 - 2.57 48.29 + 0.00
0-2 (D4)    0.00 - 2.07  0.00 + 0.00  0.92 - 1.14 58.31 + 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