Texas A&M Forest Service’s daily drought index row puts Guadalupe County’s average at 582, two points above the previous day.
The same row records a low of 448 and a high of 650 within the county. Residents can inspect the Forest Service’s Keetch-Byram Drought Index summary for the reported figures.
From the source record
The Keetch-Byram Drought Index runs from 0 (saturated soil) to 800 (extreme drought).Texas A&M Forest Service ↗
The countywide figure gives Guadalupe County residents a broad measure of dry conditions, while the recorded range of 448 to 650 shows that conditions vary within the county. The index runs from zero, meaning saturated soil, to 800, meaning extreme drought. A county average describes the row as a whole; it does not give the reading at any particular address.
The two-point change is a comparison with the preceding daily row, not a forecast. The next daily index row will show whether the county average and its range move again. For now, residents using this number to understand conditions should keep the countywide average and the spread of readings together rather than treating 582 as a reading for every part of Guadalupe County.