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
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