TYPES OF NWP MODELS RUN AT NCEP

Check out the NCEP web site for current information on model types

• Global models:
  • GFS
  • ECMWF
  • UKMET (European model)
• Regional Models:
  • Eta
  • RUC
  • NAM
• The also run ocean models and an ensemble

Forecast Types

Based on forecast length of time:

• Nowcast: 0-2 hr forecast
  • nowcasts are created using the trend technique and  monitoring observations
• short-range forecast: 6-60 hours
  • generated with model output and forecaster experience/expertise
• medium-range forecast: 3 - 8.5 days
  • generated with medium-range forecast models such as the GFS
• Long-range forecasts:
  • also known as outlooks