| Percent of U.S. Mainland in
Selected Drought Ranges -- March 21, 2009 |
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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) | 44.68 | +14.49 | 82.67 | +13.67 | 31.03 | + 0.82 | 56.19 | + 2.22 |
| 0-20 (D1) | 28.70 | + 8.55 | 77.94 | + 9.07 | 16.29 | - 3.90 | 49.17 | + 0.44 |
| 0-10 (D2) | 14.60 | + 4.52 | 76.71 | + 7.68 | 7.27 | - 2.86 | 51.56 | - 0.26 |
| 0-5 (D3) | 4.93 | - 0.17 | 65.45 | + 3.23 | 2.65 | - 2.48 | 49.25 | + 0.97 |
| 0-2 (D4) | 0.97 | - 1.10 | 54.51 | + 0.53 | 0.66 | - 1.40 | 52.56 | + 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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