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Central Oregon Interagency Dispatch Center
This site is experiencing technical difficulties and is not currently being updated. Please check back frequently as we are working on a solution. In the interim, please visit the Deschutes and Ochoco National Forests website at http://www.fs.usda.gov/centraloregon, the Prineville BLM at http://www.blm.gov/or/districts/prineville/ or the Prineville/Sisters Units of Central Oregon District of the Oregon Department of Forestry at http://www.oregon.gov/ODF/Pages/field/jd/aboutus.aspx
Palmer Drought Index Map
The Drought Severity Index (Palmer 1965) was developed to measure the departure of the moisture supply at specific locations. The index is based on the supply-and-demand concept of the water balance equation, taking into account precipitation and temperature data, as well as the local Available Water Content (AWC) of the soil. The objective of the Palmer Drought Index was to provide measurements of moisture conditions that were standardized so that comparisons using the index could be made between locations and between months.
If you cannot see the map below, you may view it directly on the WFAS web site.