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Rapid Refresh (RAP) and High-Resolution Rapid Refresh (HRRR) Forum

Hourly data out to 9h now available at NCEP

Posted By: Stan Benjamin
Date: 5-September-05 1109Z

To RUC users:
NCEP has made changes to allow access to RUC hourly output to be available via ftp out to 9h on every hourly run. For instance, it is now possible to access 20z forecast run with output at 0h,1,2,3,4,5,6,7,8,9h. This is available only for the isobaric ('pgrb' files) data at 20km resolution (from the RUC run at 13km resolution). Previously, it was available only out to 3h forecasts at non-3h initial times (e.g., 01z, 02, 04, 05, 07, 08...). The extension of the RUC forecasts out to 9h every hour occurred with the RUC13 implementation on 28 June 2005, and this ftp change at NCEP now allows access to a wider user group.

An additional change -- hourly output to 12h is now available for the 3-h initial times, run at 00z, 03z, 06z... So, now 10h and 11h output is now available at times for the first time via ftp.

More details on the NCEP ftp access is available at http://ruc.fsl.noaa.gov/ruc20.data-access.html.

Stan Benjamin

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