Updated on Thursday, May 17, 2007
Updated as needed during the month of June
Drought conditions as of May 17, the majority of western South Dakota was classified as being in moderate (D1) drought conditions with the exception of the extreme southwestern corner which improved to severe (D2) drought and the northern Black Hills which was classified as abnormally dry (D0). Northeastern Wyoming also improved to abnormally dry (D0). No drought conditions were depicted over south central South Dakota.
Temperatures and precipitation during April were slightly below average. For the most part, temperatures were 1 to 2 degrees below average while precipitation amounts ranged from 0.49 inches in Spearfish to 2.93 inches in Winner.
Neutral ENSO (El Nino – Southern Oscillation) conditions continued into May. At this time weak La Nina conditions are expected to develop for the June through August time period. There is a great deal of uncertainty on how strong the La Nina will be. The strength of La Nina impacts the expected climate response. The Climate Prediction Center outlook through June calls for above average temperatures and below average precipitation.
According to the United States Geological Survey (USGS), most stream flows across the area were between the 10th and 74th percentile.
Reservoirs around the region remain well below capacity. The table below shows reservoir percent of normal capacity and change in elevation over the past 30 days as calculated by the United States Bureau of Reclamation (USBR).
|Reservoir||Percent of Normal||Elevation Change|
|Belle Fourche||63%||+2.8 ft|
If you have any questions or comments about this drought information please contact,
Melissa Smith or Lee Czepyha
Drought Focal Points
National Weather Service
300 East Signal Drive
Rapid City South Dakota 57701
E-mail firstname.lastname@example.org or email@example.com
The drought monitor is a multi-agency effort involving NOAA's National Weather Service (NWS) and National Climatic Data Center, the United States Department of Agriculture (USDA), state and regional center climatologists, and the National Drought Mitigation Center. Information for this statement has been gathered from NWS and Federal Aviation Administration observation sites, state cooperative extension services, USDA, USBR, and USGS.