Here is an example of the type of output for this display. This format is the easiest and quickest to understand.
The station id and model run are given in light blue at the top of the image. The timestamp format for the model run is YYYYMMDDHH in UTC time.
The top panel are the forecasts for high (red) and low (blue) temperature. The middle panel (green) is for forecasts of 12-hr probability of precipitation. The bottom panel (cyan) is for forecasts of 24-hr probability of precipitation.
In all three cases time runs forward to the right.
The colored boxes and the "T's" above and below them are a measure of the forecast range from the 12 different ensembles. The black dot in the middle of each is the MEAN forecast from the 12 ensembles. The colored box is the measure of variability in the 12 runs (1 standard deviation from the mean). The wider this colored box is in the vertical, the more uncertainty exists in the ensemble forecasts. The "T's" (thin black horizontal bars) above and below the colored boxes are the extremes in the 12 ensembles. For reference, the grey dot is the Operational "Official" MRF Forecast value.
A legend at the lower left corner summarizes these details.