| 1. | They use the NWS rainfall estimates to factor into the drought index.
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| 2. | The Palmer Drought Index is based on a supply-and-demand model of soil moisture.
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| 3. | A drought index of even 400 this time of year can create a serious potential for fires.
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| 4. | Because drought affects farmers so much, DOF began about three years ago calculating the drought index for every four kilometers.
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| 5. | In some parts of Central Florida, drought index readings have topped 600 on an 800-point scale, with 800 representing bone-dry.
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| 6. | The temperatures on Thursday reached a record high 95 degrees here, and the drought index went above 600 in several counties.
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| 7. | The " Keetch-Byram Drought Index " relates fuels to how quickly they could ignite and to what percentage they should burn.
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| 8. | The index, formally the Keetch-Byram Drought Index, is a measure of the amount of moisture available to plants in the soil.
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| 9. | In fact, the drought index varied from 26 in eastern parts of the county to 662 on the west side on Thursday.
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| 10. | "We have a drought index, and the Phoenix area qualifies as being in a drought, " said Ellis, the Weather Service spokesman.
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