Many factors influence how much time and energy states devote to monitoring drought and water conditions. Some states such as North Carolina rely on the U.S. Drought Monitor or other national indices to show where drought is affecting them. Other states, particularly in mountainous areas with highly managed water supplies, may consult a variety of regional or local scale indicators to produce detailed assessments of water availability.
Local and regional data are available from many sources, including Regional Climate Centers and from volunteer networks such as the Community Collaborative Rain, Hail and Snow Network. Many agencies make local data available to web users who start at the national level and then navigate -- "drill down" -- to smaller spatial scales. For example, the U.S. Geological Survey's WaterWatch page gives users several ways to select smaller-scale data.
A large amount of state and local scale drought monitoring resources are available from state, federal, regional, and tribal agencies. The NDMC maintains a collection of these drought monitoring resources, sorted by state.