| Percent of U.S. Mainland in
Selected Drought Ranges -- December 16, 2006 |
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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) | 24.59 | - 5.59 | 40.65 | + 8.89 | 37.65 | + 7.44 | 68.94 | - 0.41 |
| 0-20 (D1) | 10.46 | - 9.68 | 25.97 | + 2.88 | 19.68 | - 0.51 | 58.35 | - 0.53 |
| 0-10 (D2) | 1.22 | - 8.86 | 9.04 | + 0.33 | 9.00 | - 1.12 | 59.09 | + 1.57 |
| 0-5 (D3) | 0.32 | - 4.78 | 14.13 | + 0.00 | 3.52 | - 1.61 | 57.66 | - 0.48 |
| 0-2 (D4) | 0.00 | - 2.07 | 0.00 | + 0.00 | 1.43 | - 0.63 | 65.27 | - 0.41 |
| *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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