A plume shows how member forecasts evolve near your selected location. It helps you compare timing, ranges and groups of outcomes that a single forecast value can hide.
Access: GEFS precipitation plumes are free without signing in. GEFS temperature and EPS/AIFS precipitation and temperature plumes require Premium.
Go to interactive viewerRead the guideEnter a place, airport identifier or coordinates, confirm the selected location, and choose a model and plume. Read the run, time axis and panel units before comparing traces.
A model-grid sample is not an observation at your property. A mean can hide wet/dry scenarios; liquid-equivalent precipitation is not snow depth.
Check initialization, valid time and units. Use official forecasts and warnings for safety decisions.