Official guidance for many NCEP operational systems can be found at the Model Analysis and Guidance (MAG) web page. The MAG page is supported 24 hours a day and 7 days a week.

EMC maintains numerous research and development (R&D) web sites of operational model guidance. These assist EMC scientists in system validation, verification against experimental tests, dissemination of experimental results, and robust diagnostic evaluation of NCEP's numerical guidance. These R&D guidance pages are not subject to 24/7 support, and thus may be unavailable during system outages. Note : All pages listed below are EMC-generated unless otherwise noted.

• Global/Climate Modeling Systems:
  • NCEP Global Forecast System
  • GFS v16 Dashboard
  • GFS v16 Official Evaluation Web page with links to graphics
  • Seasonal Forecasts from NCEP Climate Forecast System (maintained by NCEP Climate Prediction Center)
  • NCEP Global Ensemble Guidance Main Page
  • NCEP Global Ensemble Plumes
  • NCEP Global Ensemble QPF Probability (Details)
  • NCEP Global Ensemble Calibrated (Bias-corrected and Downscaled) 6hr and 24h QPF/PQPF
  • NCEP Global Ensemble 500hPa height relative measure of predictability (Details)
  • Climatology-Calibrated Precipitation Analysis (CCPA) (Journal of Hydrometeorogy Article)
    • Real-time CCPA Maps
    • CCPA Image Animation

• Mesoscale Modeling / Analysis Systems
  • NCEP Mesoscale Systems Master Web Page List (Model Graphics, Verification Sites, List of Regional/Mesoscale System Implementations since 1993)
  • NAM Meteograms for 12-km parent domain
  • RAP Meteograms
  • NAM 12-km domain : CONUS, North America, Alaska, Hawaii, North/East Pacific, Tropical Atlantic
  • NAM 12-km domain : CONUS Convective parameters
  • NAM 3-km CONUS Nest
  • NAM 3-km Alaska Nest
  • NAM 3-km Hawaii Nest
  • NAM 3-km Puerto Rico Nest
  • NAM 1.5-km Fire Weather Nest
  • Short-Range Ensemble Forecast (SREF)
  • Rapid Refresh (ESRL/GSD web page)
  • High Resolution Rapid Refresh (ESRL/GSD web page)
  • HiResWindow Forecasts
  • High Resolution Ensemble Forecast (HREF) for CONUS, Alaska, Hawaii, Puerto Rico
  • Parallel HIRESW/HREFv3 Graphics for CONUS, Alaska, Hawaii, Puerto Rico
  • Operational Mesoscale Analysis Page (RTMA, URMA, RTMA-RU, URMA Time Series, URMA QPE)
  • Hourly/6-hourly Precipitation Analysis (Stage II/IV, RTMA/URMA QPE)
  • Parallel HREF for CONUS, Alaska, Hawaii, Puerto Rico (link inactive when not running)
  • Parallel RAP/HRRR (link will be inactive when parallel is not running)

• Marine / Ocean Modeling and Analysis Systems
  • Global Real-time Ocean Forecast System (RTOFS)
  • NOAA WAVEWATCH III
  • Global Wave Ensemble System (GWES)
  • NCEP Nearshore Wave Prediction System
  • NCEP Sea Ice Analysis 
  • Climate Forecast System Reanalysis / CFSv2 Sea Ice Concentration / Thickness: Analysis, 6-h Forecast
  • NCEP Sea Surface Temperature Analysis (NSST)
  • Sea Ice Validation
  • Ocean Fronts (Gulf Stream, Loop Current, Kuroshio)
  • Florida Cable Transports
  • Class-1 Satellite Validation (coming soon)

• Air Quality Modeling Systems
  • NCEP Air Quality Model
  • Operational GEFS-Aerosol forecast guidance graphics
  • HYSPLIT Smoke Forecasts

• Hurricane Modeling Systems
  • Hurricane WRF (HWRF)
  • Hurricanes in a Multi-scale Ocean coupled Non-hydrostatic model (HMON)