| Percent of U.S. Mainland in
Selected Drought Ranges -- December 31, 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) | 8.42 | -21.77 | 4.30 | - 4.16 | 26.67 | - 3.54 | 49.12 | - 2.84 |
| 0-20 (D1) | 3.24 | -16.90 | 4.55 | - 3.01 | 14.33 | - 5.86 | 42.84 | - 1.00 |
| 0-10 (D2) | 0.14 | - 9.94 | 2.51 | - 0.25 | 5.93 | - 4.20 | 45.47 | - 0.17 |
| 0-5 (D3) | 0.14 | - 4.96 | 10.93 | + 0.14 | 2.35 | - 2.78 | 46.13 | - 0.89 |
| 0-2 (D4) | 0.00 | - 2.07 | 0.00 | + 0.00 | 1.78 | - 0.28 | 70.29 | + 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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