Current Map

The live interactive Combined Drought Index for the latest week. Hover, zoom, and jump to any state.

Open Current Map →

Compare Two Weeks

Two live maps side by side. Pick any two weeks to see how drought conditions changed.

Open Compare Two Weeks →

Comparison Slider

Drag a handle to wipe between an older week and a newer one, both rendered live.

Open Comparison Slider →

Animations

Play the weekly CDI record back through time at your chosen frame rate.

Open Animations →

Map Archive

Render any week from July 2021 to the present, then zoom and inspect.

Open Map Archive →

Hydrometeorological Conditions

Rainfall (SPI), runoff (SRI) and soil-moisture (SSMI) conditions at multiple accumulation periods.

Open Hydrometeorological Conditions →