Percent of U.S. Mainland in Selected
Drought Ranges -- March 7, 2009
Percentile
Range
Short-Term
Drought Indicator Blend
Long-Term
Drought Indicator Blend
 Current   Anomaly*   Percentile*   Change**   Current   Anomaly*   Percentile*   Change** 
0-30 (D0)   36.59 + 6.40 69.61 + 6.55 29.60 - 0.61 53.69 + 1.70
0-20 (D1)   24.16 + 4.01 68.22 + 3.49 17.81 - 2.38 53.73 + 3.84
0-10 (D2)   13.81 + 3.73 74.76 + 5.07  6.78 - 3.34 49.64 - 2.00
0-5 (D3)    7.58 + 2.48 77.69 + 3.07  1.65 - 3.48 38.75 - 0.29
0-2 (D4)    1.22 - 0.85 59.50 + 0.45  0.66 - 1.40 52.56 + 0.66
*Anomalies & percentiles based on monthly 1932 - 2001 data from National Climatic Data Center.
**Change from Previous Week's Percentage of U.S. Covered