Disclaimer: The content provided on this page supports model development. These are not official NWS products and should not to be relied upon for operational purposes.
This web site is not subject to 24/7 support, and thus may be unavailable during system outages.
About the plumes: Data for each station is interpolated from a 0.5-degree grid for both the GEFS (gray lines for control and perturbed members; black for mean) and GFS (blue line), though the native resolution of the GFS is ~13 km vs ~33 km in the GEFS. The precipitation-type plot uses the closest gridpoint to each station as opposed to interpolation and does not contain a trace for the GFS. In the 3-h accumulation plots, F00 values are derived from the previous cycle's forecast. All observed data are derived from hourly station reports. Zoom for more CONUS stations.
This site is not operational; therefore, data will be missing occasionally. The contact for this site is: firstname.lastname@example.org
start total accumulated QPF and snowfall at 0 inches
when adjusting forecast hours spanned
plot observed temperature, dew point, wind, SLP, and
accumulated precipitation when available