-------- Original Message --------
948
NOUS41 KWBC 031955
PNSWSH
TECHNICAL IMPLEMENTATION NOTICE 08-89
NATIONAL WEATHER SERVICE HEADQUARTERS WASHINGTON DC
255 PM EDT MON NOV 3 2008
TO: SUBSCRIBERS:
-FAMILY OF SERVICES
-NOAA WEATHER WIRE SERVICE
-EMERGENCY MANAGERS WEATHER INFORMATION NETWORK
-NOAAPORT
OTHER NWS PARTNERS...USERS AND EMPLOYEES
FROM: JASON TUELL
CHIEF...SCIENCE PLANS BRANCH
OFFICE OF SCIENCE AND TECHNOLOGY
SUBJECT: REPLACEMENT OF ETA-BASED MOS GUIDANCE WITH NAM-BASED
MOS GUIDANCE: EFFECTIVE DECEMBER 9 2008
REFER TO: PUBLIC INFORMATION STATEMENT...COMMENT PERIOD RELEASED
JULY 21 2008.
EFFECTIVE TUESDAY DECEMBER 9 2008 WITH THE 1200 UNIVERSAL
COORDINATED TIME /UTC/ CYCLE RUN...THE NWS WILL REPLACE THE
MODEL OUTPUT STATISTICS /MOS/ GUIDANCE BASED ON THE ETA MODEL
WITH MOS GUIDANCE BASED ON THE NORTH AMERICAN MESOSCALE /NAM/
MODEL.
A PUBLIC INFORMATION STATEMENT WAS ISSUED ON JULY 21 2008
REQUESTING COMMENTS ON THE PROPOSED REPLACEMENT OF THE ETA-BASED
MOS GUIDANCE WITH NAM-BASED MOS GUIDANCE. BASED ON THE RESPONSES
RECEIVED...THE DECISION WAS MADE TO REPLACE THE ETA MOS WITH NEW
NAM MOS GUIDANCE. FOR DETAILS ABOUT THIS DECISION PLEASE SEE THE
MEMORANDUM FOR THE RECORD AT /USE LOWER CASE LETTERS/:
HTTP://WWW.WEATHER.GOV/INFOSERVICECHANGES/ETAMOSDECISION.PDF
THE NAM MOS GUIDANCE WILL BE ISSUED FOR THE SAME ELEMENTS AS THE
ETA MOS GUIDANCE AND WILL BE AVAILABLE FOR ONE TO THREE DAYS IN
ADVANCE OF THE 0000 AND 1200 UTC MODEL RUN TIMES. GUIDANCE WILL
BE AVAILABLE IN ALPHANUMERIC TEXT MESSAGES AND BUFR PRODUCTS
WHICH WILL USE THE SAME WMO HEADINGS AND AWIPS IDS AS THE
CURRENT ETA MOS PRODUCTS. THE WMO HEADINGS FOR THE PRODUCTS ARE
OUTLINED IN TABLE 1 BELOW. THE PRODUCTS WILL BE DISSEMINATED ON
THE SATELLITE BROADCAST NETWORK /SBN/...NOAAPORT...AND THE NWS
FTP SERVER.
USERS WILL SEE THE FOLLOWING CHANGES DUE TO THE REPLACEMENT OF
THE ETA MOS WITH NAM MOS:
1. STATISTICAL EQUATIONS FOR SOME ELEMENTS REDEVELOPED USING NAM
MODEL DATA AS INPUT
2. CHANGES TO THE STATIONS FOR WHICH GUIDANCE IS AVAILABLE
3. THUNDERSTORM GUIDANCE NOW AVAILABLE TO 72 HOURS IN TEXT
PRODUCT
4. PRODUCT DELIVERY APPROXIMATELY 10 MINUTES LATER DUE TO LONGER
MODEL RUN TIME
5. ETA MOS LABEL IN TEXT AND BUFR PRODUCTS CHANGED TO NAM MOS
PLEASE REFER TO THE WEBSITE LISTED BELOW FOR MORE SPECIFIC
DETAILS ABOUT THE CHANGES OUTLINED ABOVE: /USE LOWER CASE
LETTERS/
HTTP://NWS.NOAA.GOV/MDL/SYNOP/NAM.PHP
A TECHNICAL PROCEDURES BULLETIN DESCRIBING THE FORMAT OF THE NAM
MOS TEXT PRODUCTS IS AVAILABLE AT THE FOLLOWING WEB SITE /USE
LOWER CASE LETTERS/:
HTTP://NWS.NOAA.GOV/MDL/SYNOP/TPB/MDLTPB08-01.PDF
TABLE 1. COMMUNICATION IDENTIFIERS FOR THE NAM-BASED MOS
GUIDANCE.
NOTE THAT THESE IDENTIFIERS ARE CURRENTLY USED TO DISSEMINATE
THE ETA MOS GUIDANCE. ON DECEMBER 8 2008 THE NAM GUIDANCE WILL
BE SENT UNDER THESE HEADINGS.
WMO HEADING AWIPS ID PRODUCT TYPE
FOPA40 KWNO METPA0 TEXT
FOUS44 KWNO METNE1 TEXT
FOUS45 KWNO METSE1 TEXT
FOUS46 KWNO METNC1 TEXT
FOUS47 KWNO METSC1 TEXT
FOUS48 KWNO METRM1 TEXT
FOUS49 KWNO METWC1 TEXT
FOAK47 KWNO METAJK TEXT
FOAK48 KWNO METAFC TEXT
FOAK49 KWNO METAFG TEXT
JSML10 KWNO N/A BUFR
JSML11 KWNO N/A BUFR
JSML12 KWNO N/A BUFR
JSML13 KWNO N/A BUFR
JSML14 KWNO N/A BUFR
JSML15 KWNO N/A BUFR
JSML16 KWNO N/A BUFR
JSML17 KWNO N/A BUFR
IF YOU HAVE QUESTIONS ABOUT THESE PRODUCTS OR THE MOS
GUIDANCE...PLEASE CONTACT:
KATHRYN GILBERT
MDL/SILVER SPRING MARYLAND
PHONE: 301-713-0023 EXT. 130
E-MAIL: KATHRYN.GILBERT@xxxxxxxx
LINKS TO THE MOS PRODUCTS...ALONG WITH DESCRIPTIONS...CAN BE
FOUND ONLINE AT /USE LOWER CASE LETTERS/:
HTTP://WWW.NWS.NOAA.GOV/MDL/SYNOP
NWS TECHNICAL IMPLEMENTATION NOTICES ARE ONLINE AT /USE LOWER
CASE LETTERS/:
HTTP://WWW.NWS.NOAA.GOV/OM/NOTIF.HTM
$$
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