| Percent of U.S. Mainland in
Selected Drought Ranges -- December 15, 2007 |
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| Percentile Range |
Short-Term Drought Indicator Blend |
Long-Term Drought Indicator Blend |
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| Current | Anomaly* | Percentile* | Change** | Current | Anomaly* | Percentile* | Change** | |
| 0-30 (D0) | 12.74 | -17.45 | 12.14 | - 3.37 | 38.56 | + 8.35 | 70.63 | + 0.13 |
| 0-20 (D1) | 5.08 | -15.07 | 8.25 | - 2.27 | 25.97 | + 5.78 | 70.14 | - 1.34 |
| 0-10 (D2) | 0.45 | - 9.63 | 4.51 | - 1.86 | 11.85 | + 1.72 | 68.99 | - 0.99 |
| 0-5 (D3) | 0.00 | - 5.10 | 0.00 | - 1.03 | 4.84 | - 0.29 | 66.19 | - 2.37 |
| 0-2 (D4) | 0.00 | - 2.07 | 0.00 | + 0.00 | 1.70 | - 0.36 | 69.76 | + 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 |
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