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The Drought.gov team reformats data from multiple partners into web- and GIS-ready formats, which we use throughout Drought.gov. These data, hosted on Google Cloud Storage, are free for all to download or reference directly from their web applications.

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Maps
Map
Dataset Name

USGS Streamflow Conditions

Update Schedule
Data Valid
Last Update
07/11/25

Streamflow data were available in a GIS format from the U.S. Geological Survey (USGS) WaterWatch. 

Source(s)
Update Schedule

This map updates daily on Drought.gov. View the most recent real-time streamflow data via USGS.

Map
Dataset Name

USGS Streamflow Conditions: 28-Day Average

Update Schedule
Data Valid
Last Update
07/11/25

Streamflow data were available in a GIS format from the U.S. Geological Survey (USGS) WaterWatch. 

Source(s)
Update Schedule

This map updates daily on Drought.gov. View the most recent real-time streamflow data via USGS.

Map
Dataset Name

Quantitative Precipitation Forecast: Day 1–7

Last Update
07/11/25

Produced by the National Weather Service's Weather Prediction Center, this Quantitative Precipitation Forecast shows the amount of liquid precipitation expected to fall over the next 7 days. (In the case of snow or ice, the forecast represents the amount of liquid that will be measured when the precipitation is melted.) Precipitation amounts can vary significantly over short distances, especially when thunderstorms occur, so the Quantitative Precipitation Forecast is defined as the expected "areal average" (on a 20 x 20 km grid) in inches. Learn more.

Quantitative Precipitation Forecast (QPF) data were available in a GIS format from the National Weather Service's Weather Prediction Center. The QPF maps on Drought.gov are updated daily and are valid from 12z (7 a.m. Eastern) that day.

Source(s)
Update Schedule

The Quantitative Precipitation Forecast maps on Drought.gov are updated once a day and are valid from 7 a.m. Eastern that day.