Generate soundings from RUC, Rapid Refresh, FIM, GFS, NAM, and other Model Analyses and Forecasts, RAOBS, Profilers, Radiometers, or Aircraft (restricted)

The new URL for this page is http://rucsoundings.noaa.gov/
The new URL for non-java soundings is http://rucsoundings.noaa.gov/gifs/
(The old URLs will continue to work for the forseeable future.)

Archival model soundings at these RAOB sites, for 0 and 12 UTC available as follows:
Bak20 23 Feb 2006 - 5 Jan 2009
Op20 starting 4 Jan 2007
GFS starting 6 Dec 2007
NAM starting 30 Jan 2008 		FIM starting 26 Feb 2008
RRnc starting 24 May 2008
RR1h starting 11 Dec 2008
Bak13 soundings for every hour for the past two weeks are available at these airports.

Latest version: 3-Aug-2009. See change details for more information.

For up-to-date information about the status of RUC runs, see the RUC forum. (You can subscribe to this forum to get email copies of new posts.) Please also see the RUC FAQ.

Latest Op40 analysis is valid at 23:00 24-Aug-09 UTC | Latest Bak40 analysis is valid at 23:00 24-Aug-09 UTC

Initial data source: Op40 (to 12h, NCEP 13km RUC on 40km grid, hourly, formerly "RUC2") or
Bak40 (to 48h, Backup 13km RUC on 40km grid, hourly, formerly "MAPS") or
Bak13 (Archival analyses and 3h forecasts, available at these airports) or
FIM (to 5 days, Global, 0.5° grid, 12-hourly) or
GFS (to 5 days, Global, 0.5° grid, 12-hourly) or
NAM (to 15h, 3-hourly) or
RAOBs or Profilers or Radiometers or Aircraft (restricted) or

--- slower-to-load, high-server-load, or special purpose soundings below ---
RETRO (special restores) or CIMSS (special RAOBs)
RR1h, (Rapid Refresh, hourly cycle) or RRnc (Rapid Refresh, non-cycling, every 12h) or
Op20 (NCEP 13km RUC on 20km grid) or Bak20 (Backup 13km RUC on 20km grid)
dev (no TAMDAR, 20km, ended 1/5/09) or dev2 (with TAMDAR, 20km, ended 1/5/09) or
Dev1320 (Dev13 on 20 km grid)

Start Time: Latest, or - : UTC
Number of hours:
Name(s), "lat,lon",
or RAOB-WMO-ID(s):
Site(s):
Site info: METARs, Airports, Profilers, Radiometers,
RAOB locations, latest RAOB times.
(Explanation of GSD format.)
For information on interpreting these soundings, please see the following:
  		• The NWS Publication The Front from Feb 2004. (The web site has been updated a bit from what is shown in the article, but this is an excellent reference for pilots nonetheless.)
  		• Tutorial on upper air plots from UNISYS
  		• Tutorial from Texas A & M

    We reserve the right to deny access to any individual or organization that we determine is abusing this service. Examples of abuse include automated transfers resulting in excessive data requests (because it hinders others from accessing the service) and attempting to gain access to documents and host machines not intended for public use.

    Please send comments about this page to Bill Moninger.
    MAPS data provided by Stan Benjamin and Kevin Brundage,
    Profiler data provided by GSD's Demonstration Division,
    Radiometer data provided by Radiometrics
    RAOB data provided by Mark Govett and Brian Jamison

    Last modified: Mon Aug 3 16:42:20 GMT 2009

    U.S. Department of Commerce National Oceanic and Atmospheric Administration Earth System Research Laboratory Global Systems Division Privacy Policy Accessibility Disclaimer