Hydrologic Summary for August 2003 for the Area Served by the NWS Forecast Office at Sioux Falls, SD

Summary

August was a very hot and dry month across the area. There were no heavy rain events and no flooding.

Flooding

There was no flooding across southeast South Dakota, southwest Minnesota, northwest Iowa, or extreme northeast Nebraska in August.

General Hydrologic Information

Temperatures in August were above normal across the region, generally ranging from 2 to 3 degrees above the 30 year average.
 
Precipitation for the month was below to much below normal for most of the region. A few isolated areas received near normal to slightly above normal rainfall, but on average, the region was very dry in August. Monthly rainfall totals were generally 0.75 to 1.75 inches, with isolated amounts of 3 to 3.5 inches. This was ½ to 1 ½ inches below normal for the majority of the area, and near normal to 1 inch above normal for the lucky few locations that received the heavier rainfall.
 
Soil Moisture conditions at the end of August were 1 to 3 inches below normal for locations in South Dakota, and 3 to 4 inches below normal in northwest Iowa and southwest Minnesota. The National Drought Monitor showed abnormal dryness for most of eastern South Dakota…and moderate drought across the adjacent areas of Minnesota and Iowa, as well as along the Missouri River in south central South Dakota.
 
Mike Gillispie
September 9, 2003
 

  • National Weather Service
  • Sioux Falls, SD Weather Forecast Office
  • 26 Weather Lane
  • Sioux Falls, SD 57104-0198
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  • Page last modified: January 5th 2006 9:26 PM
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