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300 NOXX10 KWBC 252103 DATA MGT MESSAGE 02-02.12 TO AWIPS/NOAAPORT USERS... FAMILY OF SERVICES /FOS/ SUBSCRIBERS EMERGENCY MANAGERS WEATHER INFORMATION NETWORK /EMWIN/NATIONAL WEATHER SERVICE /NWS/ CUSTOMERS... WAFS USERS... GTS USERS... NWS FAX CHART USERS FROM RTH WASHINGTON DATA MANAGEMENT EFFECTIVE MARCH 27... 2002... FORECAST DATA FROM ALL FOUR RUNS OF THE AVN MODEL WILL BE AVAILABLE OUT TO 384 HOURSON THE NWS FTP SERVERS. THIS WILL NOT AFFECT MESSAGES SENT TO COMMUNICATIONS LINES OR BROADCASTS. THESE RUNS WILL BE MADE AT T170L42 RESOLUTION /APPROXIMATELY 1 DEGREE HORIZONTAL RESOLUTION/ OUT TO 180 HOURS WITH OUTPUT IN 3- HOUR INCREMENTS. FROM 192 TO 384 HOURS THE RESOLUTION OF THESE RUNS WILL BE REDUCED TO T62L28 /APPROXIMATELY 2.5 DEGREE HORIZONTAL RESOLUTION/ WITH OUTPUT IN 12-HOUR INCREMENTS. THE FOLLOWING DIRECTORIES ON THE NWS FTP SERVERS WILL BE AFFECTED BY THIS CHANGE /SL.US008001/ST.OPNL/MT.AVN/UNDERSCORE/CY.HH/RD.YYYYMMDD/ PT.GRID/UNDERSCORE/DF.GR1. THIS DIRECTORY CONTAINS TWO MAIN FILE TYPES... A 3-D GRIB FILE AND A GRIB FILE OF SURFACE FLUXES... PLUS THEIR INDEX FILES. AT 12 UTC A MUCH REDUCED GRID AT 2.5 DEGREE RESOLUTION IS ALREADY AVAILABLE OUT TO 120 HOURS... BUT THIS IS A RELATIVELY SMALL FILE COMPARED TO THE OTHERS. THE APPROXIMATE DATA VOLUME CHANGE IN THIS DIRECTORY ARE AS FOLLOWS CURRENTLY 1445 MB OF DATA ARE STORED AT BOTH 00 AND 12 UTC.. AND 975 MB AT BOTH 06 AND 18 UTC FOR A GRAND TOTAL OF ABOUT 4.8 GB PER DAY. THIS IMPLEMENTATION WILL ADD 690 MB OF DATA AT BOTH 00 AND 12 UTC AND 1160 MB AT 06 AND 18 UTC WHICH WILL BRING THE TOTAL TO 2135 MB PER CYCLE OR 8.5 GB PER DAY. THE APPROXIMATE AVAILABILITY TIMES OF THESE NEW DATA SETS ARE AS FOLLOWS 00 UTC FORECAST HOUR 129 - 384 AVAILABLE STARTING 0400 UTC WITH FINAL PRODUCT AVAILABLE 30 MINUTES LATER 06 UTC FORECAST HOUR 87 - 384 AVAILABLE STARTING 0945 UTC WITH FINAL PRODUCT AVAILABLE 50 MINUTES LATER 12 UTC FORECAST HOUR 129 - 384 AVAILABLE STARTING 1600 UTC WITH FINAL PRODUCT AVAILABLE 30 MINUTES LATER. 18 UTC FORECAST HOUR 87 - 384 AVAILABLE STARTING 2145 UTC WITH FINAL PRODUCT AVAILABLE 50 MINUTES LATER. PLEASE NOTE THAT THERE ARE CURRENTLY NO PLANS TO DISSEMINATE THESE ADDITIONAL DATA ANYWHERE EXCEPT FOR THE NWS AND NCEP FTP SERVERS. FOR FOS/NOAAPORT AND NON-AWIPS CUSTOMERS - IF YOU HAVE ANY QUESTIONS REGARDING THIS NOTICE... PLEASE CONTACT DATA MANAGEMENT LOWER CASE EMAIL NWS.DM/AT SYMBOL//NOAA.GOV THIS INFORMATION IS ALSO POSTED ON THE NWS DATA MANAGEMENT CHANGE NOTICES WEB PAGE THE URL IS LISTED BELOW HTTP/COLON///WWW.NWS.NOAA.GOV/DATAMGMT/NOTICES.SHTML DATA MANAGEMENT TELECOMMUNICATION OPERATIONS CENTER RTH WASHINGTON SENDS ---------- End Forwarded Message ----------
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