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Keetch-Byram Drought Index (KBDI) – U.S. Forest Service

The Keetch-Byram Drought Index assesses the risk of fire by representing the net effect of evapotranspiration and precipitation in producing cumulative moisture deficiency in deep duff and upper soil layers.

Data Coverage
United States
Period of Record
1997 - Present
File Format
images
Data Type
Land-based Station

Soil Climate Analysis Network (SCAN)

The Soil Climate Analysis Network (SCAN) provides soil and climate data to support natural resource assessments and conservation activities, focusing on agricultural areas of the U.S.

Data Coverage
United States
Period of Record
1991 - Present
File Format
csv
other
Data Type
Land-based Station

Surface Hydrology Maps

Weekly and monthly hydrological data from the North-American Land Data Assimilation System (NLDAS).

Data Coverage
United States
Period of Record
Current Conditions
File Format
images
geotiff
Data Type
Model

GFS Soil Moisture Anomaly

A soil moisture tool for the next 2 weeks based on the National Weather Service (NWS) Global Forecast System (GFS) model.

Data Coverage
United States
Period of Record
Current Conditions, Forecasts
File Format
images
Data Type
Model

Climate Prediction Center Soil Moisture Products

Soil moisture conditions at the daily and monthly scales depicting total soil moisture, percentiles and anomalies, as well as monthly and seasonal change.

Data Coverage
United States
Period of Record
2008 - Present
File Format
images
shapefile
Data Type
Land-based Station

CPC Soil Moisture Outlooks - Monthly and Seasonal

The National Weather Service (NWS) Climate Prediction Center (CPC) produces monthly and seasonal drought outlooks based on Soil Moisture (CAS).

Data Coverage
United States
Period of Record
Forecasts
File Format
images
Data Type
Model

North-American Land Data Assimilation System (NLDAS)

NLDAS Drought Monitor Products: an experimental drought monitor derived from near real-time soil moisture output from both the NASA MOSAIC and NCEP Noah land surface models.

 

 

Data Coverage
North America
Period of Record
Current Conditions, Forecasts
File Format
images
Data Type
Model

NationalSoilMoisture.com

The research-based website NationalSoilMoisture.com provides high-resolution gridded soil moisture products derived from in situ soil moisture measurements, Natural Resources Conservation Service SSURGO soil characteristics, and PRISM data.

Data Coverage
United States
Period of Record
January 2018 - present
File Format
csv
geotiff
Data Type
Model
2019 in Review: A Look Back at Drought across the United States in 10 Maps
Published on

Including Weekly Maps from the U.S. Drought Monitor, the Most Intense Drought Map, the Weeks in Drought Map, the Cumulative Drought Index, the USDM 1 Year Change Map, the USDA Drought Designated Counties Map, the 12-Month SPI Map, the Annual Departure from Normal Precipitation Map, the Palmer Drought Severity Index, and the Soil Moisture Anomaly Monthly Maps.

What Does Flash Drought Look Like in Your Region?
Published on

Flash drought can quickly deplete soil moisture and dramatically increase evaporative stress on the environment, leading to significant impacts on agriculture. A recently completed study, led by researchers from the University of Oklahoma and published in the journal Environmental Research Communications, performed a regional analysis across the United States to explore geographic differences of flash droughts.

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