Looking Ahead: During the March 8-12, 2012 time period, there is an enhanced probability of precipitation in the Pacific Northwest and ranging from the Southern Plains into the Southeast. Below normal precipitation is expected through much of the West and throughout the Great Lakes and New England.
For the ensuing 5 days (March 13-17, 2012), the odds favor normal to warmer than normal conditions over the entire US with the exception of the Pacific Coast and Alaska, where odds favor below normal conditions. In New England, the extreme Southwest, and Alaska the odds favor below normal precipitation while the northern Pacific Coast and a large are from the South, through the Southeast and into the Ohio Valley and Midwest are expected to see above normal precipitation.
Author: Michael Brewer, National Climatic Data Center, NOAA
D0 ... Abnormally Dry ... used for areas showing dryness but not yet in drought, or for areas recovering from drought.
Drought Intensity Categories
D1 ... Moderate Drought
D2 ... Severe Drought
D3 ... Extreme Drought
D4 ... Exceptional Drought
Drought or Dryness Types
S ... Short-Term, typically <6 months (e.g. agricultural, grasslands)
L ... Long-Term, typically >6 months (e.g. hydrology, ecology)