Skip Navigation Links www.nws.noaa.gov 
NOAA logo - Click to go to the NOAA home page National Weather Service   NWS logo - Click to go to the NWS home page
Climate Prediction Center

Drought Indices
   • Standardized
     Precipitation
     Index (SPI)

       • Monitoring
       • Prediction
          • Seasonal
          • Subseasonal

   • Soil Moisture
     Percentile (SMP)
       •
Monitoring
       • Prediction

   • Standardized
     Runoff Index (SRI)


   • Palmer Drought
     Severity Index
     (PDSI)


   • Crop Moisture
     Index (CMI)


Flash Drought
   • Monitoring
   • Development
   • Tendency Forecast

Accumulated Precipitation
   • CONUS
   • AK

Surface Temperature
   • Maximum/Minimum
   • Mean

Surface Hydrology
(based on NLDAS)

   • Total Soil Moisture
       • Monitoring
       • Prediction
   • Total SM Change
       • Monitoring
       • Prediction
   • MOSAIC Soil
     Moisture Profile

   • NOAH Soil
     Moisture Profile

   • NOAH Soil T Profile
   • Evaporation
       • Monitoring
       • Prediction
   • E-P
   • Runoff
       • Monitoring
       • Prediction
   • Snow Cover
   • Snow Water Equiv.

Topsoil Moisture
(based on USDA)



About Us
   Our Mission
   Who We Are

Contact Us
   CPC Information
   CPC Web Team

 

HOME > U.S. Drought > Drought Indices: Standardized Runoff Index (3-Month)

Drought Indices
Standardized Runoff Index
3-Month
23Apr2021-23Jul2021
Topo Map
3 Month Runoff Index Ensemble
3 Month Runoff Index Mosaic
3 Month Runoff Index NOAH
3 Month Runoff Index SAC
3 Month Runoff Index VIC
Boundaries
Rivers
Legend
               
Notes about this product:
  • Drought classification: D1 -0.8 > SRI > -1.2; D2 -1.3 > SRI > -1.5; D3 -1.6 > SRI > -1.9; and D4 SRI < -2.
  • Data source: North American Land Data Assimilation System (NLDAS)
  • GeoTIFF: Undefined value is -999.
Related Links:
Contacts: L. Gwen Chen (lichuan.chen@noaa.gov) & Li Xu (li.xu@noaa.gov)



NOAA/ National Weather Service
NOAA Center for Weather and Climate Prediction
Climate Prediction Center
5830 University Research Court
College Park, Maryland 20740
Page Author: Climate Prediction Center Internet Team
Page last modified: Aug 19, 2016
Disclaimer
Information Quality
Credits
Glossary
Privacy Policy
Freedom of Information Act (FOIA)
About Us
Career Opportunities