Percent of
U.S. Mainland in Selected
Drought Ranges-- May 11, 2013
Percentile
Range
Short-Term
Drought Indicator Blend
Long-Term
Drought Indicator Blend
Current
Anomaly*
Percentile*
Change**
Current
Anomaly*
Percentile*
Change**
0-30 (D0)
49.84
+19.65
88.02
+ 7.72
45.31
+15.10
80.41
+ 2.62
0-20 (D1)
40.00
+19.85
91.66
+ 6.57
33.82
+13.63
82.99
+ 1.74
0-10 (D2)
20.28
+10.20
88.36
- 1.39
17.96
+ 7.84
83.06
- 2.07
0-5 (D3)
9.67
+ 4.56
85.32
- 3.03
11.28
+ 6.15
87.74
- 0.12
0-2 (D4)
1.10
- 0.97
56.74
- 6.55
5.01
+ 2.95
89.46
+ 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
www.nws.noaa.gov 
