The NCEP ETA SREF component has 5 members, runs twice a day (09z and 21z)
at a forecast length of 63hr with 48km ETA model. Three types of
ensemble products are available now for selected variables: (1) Mean and
Spread; (2) Spaghetti Diagrams; and (3) Probability Charts.
More ensemble products will be developed in future. If you have any
suggestions or requests about ensemble products, welcome to contact us
at Jun.Du@noaa.gov or Steve.Tracton@noaa.gov.