GEFS plumes for:
Available GEFS forecasts (scroll for more):
20250904
20250903
20250902
20250901
20250831
20250830
20250829
20250828
Available fields
2-m Temperature
2-m Dewpoint
2-m Relative Humidity
850mb Temperature
Mixed-layer CAPE
10-m wind speed
10-m wind direction
PWAT
MSLP
3-hr QPF
Total QPF
Total Snow
Snow Depth

About this webpage...
  • Plume data populates 4-6hr after initiation time (00 UTC GEFS plumes become available between 4-6 UTC).
  • GEFS data is bi-linearly interpolated using the 0.5 degree GEFS data from AWS. Precipitation type uses the closest grid point to each station rather than interpolation.
  • Blue line is operational GFS, using 0.5 degree GFS data from AWS and same interpolation as GEFS.
  • Boxplots constructed using 10th, 25th, 75th, and 90th percentiles. Solid black line is ensemble mean.
  • Wind barbs indicate ensemble mean wind speed/direction.
  • Colored dots show dominant precip type (none, snow, rain, fzra, sleet) along with the probability of >= 0.01" QPF