Longest Forecast Period -------------------------------------------------------------------------------------> Shortest Forecast Period
Lowest Resolution ----------------------------------------------------------------------------------------------> Highest Resolution
Global Forecasting System
Created by the National Centers for Environmental Prediction (NCEP)
Outputs data 4 times a day (00z, 06z, 12z, 18z)
Forecast period: up to 16 days (384 hours)
European Centre for Medium-Range Weather Forecasts
Established in 1975 and is headquartered in the United Kingdom
Outputs data 4 times a day (00z, 06z, 12z, 18z)
Forecast period: up to 10 days (240 hours)
North American Mesoscale Forecast System
Created by the National Centers For Environmental Prediction (NCEP)
Outputs data 4 times a day (00z, 06z, 12z, 18z)
Forecast period: up to 3.5 days (84 hours)
High-Resolution Rapid Refresh
Created by NOAA hellohellohellohellohellohellohellohellohellohellohello
Outputs data hourly lohellohello
Forecast period: up to 0.75 days (18 hours)