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

 
HOME > Climate & Weather Linkage > Madden-Julian Oscillation > Operational GFS MJO Forecast
 

Shown below are MJO forecast products using information from the operational GFS (i.e., single, higher-resolution run). The Wheeler and Hendon (2004) methodology is applied to the model forecast data and are equivalent to those perfomed on observations with necessary adjustments due to the use of realtime model forecast data. Please inquire for additional details if needed. The anomalies (with the seasonal cycle and interannual variability removed) are then projected onto EOFs based on observed data.

Operational GFS Phase Diagram
Phase diagram of the MJO index from the operational GFS

Phase diagram showing the evolution of the last 40 days of observations along with the 15 day operational GFS forecast. Blue line is the operational GFS forecast with the green line (Ensemble Mean GFS) displayed for comparison. Thick (thin) lines refer to week 1 and week 2 respectively.


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: December 19, 2005
Disclaimer
Information Quality
Credits
Glossary
Privacy Policy
Freedom of Information Act (FOIA)
About Us
Career Opportunities