March 27, 2013
Supply and Demand
Wells and Aquifers in Iowa
Supply and Demand Concerns
Demand Concerns
Northwest Iowa August 23, 2012
Central Iowa – August 20, 2012
Skunk River near Ames
Trumbull Lake Clay County, Iowa September 2012
Last 180 days - % of normal
Last 30 days - % of normal
Last 14 days - % of normal
Last 7 days - % of normal
200 cfs
6000 cfs
1000 cfs
Wells and Aquifers in Iowa
Supply and Demand Concerns
Demand Concerns
Alluvial Wells
4 ft.
2 ~3 ft.
1ft.
<1ft.
www.iowadnr.gov– search for “water summary update”
Short-Term
Monitor Your ConditionsSupply and Demand
Pay close attention to the Drought Monitor, local streamflow and precipitation, or other available data.
Write, review, and/or update a Drought Preparedness and Response Plan
U.S. Drought Monitor (USDM):
droughtmonitor.unl.edu
• State-of-the-art drought assessment in the U.S. since 1999• Collaborative effort between NOAA, USDA and NDMC
• Composite indicator blends objective indicators and indices with field input from over 350 experts
• Policy implications in Farm Bill/USDA, IRS, NOAA-NWS and several state drought task forces
• “Go to source” for media and the public
Early Warning? Early warning:
Early warning involves forecasts based on climate projections and the area’s drought history, possible outcomes of developing drought events, and answering questions about how long a drought might last and how severe it might be.
Effective early warning systems should involve both technology and all interested parties in drought planning and response.
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