IRI FD Flexible_Forecast precipitation

• climatology mean for IRI (unitless) [ Longitude Latitude lead S ]
• climatology standard deviation for IRI (unitless) [ Longitude Latitude lead S ]
• IRI forecast mean (unitless) [ Latitude Longitude lead S ]
• IRI forecast standard deviation (unitless) [ Latitude Longitude lead start ]
• forecast time (months since 1960-01-01) [ S lead ]
• Length of forecast time (days) [ S lead ]