Keetch-Byram Drought Index (KBDI) Interactive Map

Welcome to the KBDI interactive mapping service. If this is your first time using our services, please take a few moments to read the entire page before proceeding to the mapping site.

Launch the KBDI interactive map

What can I find on the interactive map?

Using ArcIMS technology, a powerful GIS application, you can view the current Keetch-Byram Drought Index (KBDI) for each county in Texas.

Keetch-Byram Drought Index (KBDI) is an index used to determining forest fire potential. The drought index is based on a daily water balance, where a drought factor is balanced with precipitation and soil moisture (assumed to have a maximum storage capacity of 8-inchs) and is expressed in hundredths of an inch of soil moisture depletion.

What do the colors on the map represent?

Each color on the map represents the drought index at that location. The drought index ranges from 0 to 800, where a drought index of 0 represents no moisture depletion, and an index of 800 represents absolutely dry conditions.

To see the range of KBDI values for each color shown on the map, click the "Map Layers & Legend" button in the upper-left corner of the mapping application window.

Where can I go to learn how to use the available mapping tools such as Zoom In, Identify and Print?

To learn more about our Interactive Mapping Service, and to learn about the mapping tools,
please refer to our online help file.