-------- Original Message --------
010
NOUS41 KWBC 061201
PNSWSH
TECHNICAL IMPLEMENTATION NOTICE 08-49
NATIONAL WEATHER SERVICE HEADQUARTERS WASHINGTON DC
800 AM EDT FRI JUN 6 2008
TO: SUBSCRIBERS:
-FAMILY OF SERVICES
-NOAA WEATHER WIRE SERVICE
-EMERGENCY MANAGERS WEATHER INFORMATION NETWORK
OTHER NWS PARTNERS...AND NWS EMPLOYEES
FROM: KEN GRAHAM
CHIEF...METEOROLOGICAL SERVICES DIVISION
SUBJECT: HAZARD ELEMENT TO BECOME EXPERIMENTAL IN THE NATIONAL
DIGITAL FORECAST DATABASE /NDFD/ ON JULY 08 2008 AT
1400 UTC /JULY 09 2008 AT MIDNIGHT LOCAL TIME IN GUAM/
REFER TO: TIN 08-50 ANNOUNCING QPF...SKY AND SNOW ELEMENTS
BECOMING OPERATIONAL IN THE NDFD ON THE SAME DATE
EFFECTIVE JULY 08 2008 AT 1400 COORDINATED UNIVERSAL TIME
/UTC/...JULY 09 2008 AT MIDNIGHT LOCAL TIME IN GUAM...NWS WILL
ADD THE HAZARD ELEMENT TO THE NATIONAL DIGITAL FORECAST DATABASE
/NDFD/ IN EXPERIMENTAL STATUS.
THE HAZARD ELEMENT WILL CONTAIN ALL THE ACTIVE LONG DURATION
WATCH...WARNING...AND ADVISORY HAZARDS AVAILABLE FROM THE NDFD AT
A 5 KILOMETER SPATIAL RESOLUTION FOR THE CONTERMINOUS U.S.
/CONUS/...THE 16 PRE-DEFINED NDFD CONUS SUBSECTORS...ALASKA...
PUERTO RICO AND THE VIRGIN ISLANDS...HAWAII AND GUAM. THE HAZARD
GRIDS ARE ISSUED FOR ONE HOUR PERIODS OUT TO 72 HOURS THEN AT 6
HOUR PERIODS OUT TO 120 HOURS.
SUPPLEMENTAL NDFD HAZARD IMAGES WILL BECOME AVAILABLE IN
EXPERIMENTAL STATUS AT THREE HOURLY RESOLUTION TO 72 HOURS AND
SIX HOURLY RESOLUTION FOR DAYS 4 AND 5. THIS REDUCED TEMPORAL
RESOLUTION FOR THE NDFD HAZARD IMAGES WILL CONTINUE UNTIL THE NWS
WEB FARM HAS SUFFICIENT CAPACITY TO GENERATE ONE HOURLY
RESOLUTION IMAGES.
THE HAZARD GRIDS DO NOT INCLUDE THE FOLLOWING HAZARDS:
-TORNADO WARNING
-SEVERE THUNDERSTORM WARNING
-EXTREME WIND WARNING
-FLASH FLOOD WARNING
-SPECIAL MARINE WARNING
-AREAL FLOOD WARNING
-FLOOD WATCH FOR FORECAST POINTS
-FLOOD WARNING FOR FORECAST POINTS
IN ADDITION...ALASKA REGION WFOS WILL NOT PROVIDE MARINE HAZARD
GRIDS.
MORE DETAILS REGARDING THE HAZARDS ELEMENT WILL BE PROVIDED IN A
PRODUCT DESCRIPTION DOCUMENT /PDD/ WHICH WILL BE ADDED TO THE
ONLINE CATALOG OF NWS PRODUCTS AND SERVICES BEFORE THE
IMPLEMENTATION DATE. REFER TO /USE LOWER CASE LETTERS/:
HTTP://PRODUCTS.WEATHER.GOV/VIEWLISTE.PHP
A DETAILED LISTING OF ALL HAZARDS INCLUDED IN THE HAZARDS ELEMENT
WILL BE INCLUDED IN THE PDD: SEE APPENDIX A.
WITH THIS IMPLEMENTATION...THE HAZARD GRIDS WILL BE AVAILABLE
FROM NDFD IN THREE OF THE STANDARD METHODS:
- GRIDDED BINARY /GRIB2/ FILES VIA HYPERTEXT TRANSFER
PROPOCOL /HTTP/ AND FILE TRANSFER PROTOCOL /FTP/
- IN EXTENSIBLE MARKUP LANGUAGE /XML/ VIA SIMPLE OBJECT
ACCESS PROTOCOL /SOAP/
- GRAPHICS VIA WEB BROWSER
THE HAZARD GRIDS WILL NOT BE AVAILABLE IN GEOGRAPHY MARKUP
LANGUAGE /GML/ THROUGH THE NDFD WEB FEATURE SERVICE /WFS/.
USERS WHO PULL NDFD ELEMENTS IN GRIDDED BINARY EDITION 2 /GRIB2/
FORMAT FROM THE NWS ANONYMOUS FILE TRANSFER PROTOCOL /FTP/ SERVER
OR THE HYPERTEXT TRANSFER PROTOCOL /HTTP/ SERVER...MAY NEED TO
UPDATE THEIR PROCEDURES AND SCRIPTS TO ACCESS THIS NEW ELEMENT.
FOR CUSTOMERS WHO KEY ON THE WORLD METEOROLOGICAL ORGANIZATION
/WMO/ SUPER HEADINGS TO ACCESS NDFD ELEMENTS...THE LIST OF SUPER
HEADINGS FOR THE EXPERIMENTAL HAZARDS ELEMENT IS ONLINE AT /USE
LOWER CASE LETTERS/:
HTTP://WWW.WEATHER.GOV/NDFD/RESOURCES/HAZARD_WMO_HDG_NDFD.PDF
CUSTOMERS WHO USE THE NDFD IN XML VIA WEB SERVICE OR THE ONLINE
NDFD GRAPHICS VIA WEB BROWSER CAN USE THE SAME METHODS THEY
CURRENTLY USE TO ACQUIRE THESE NEW EXPERIMENTAL ELEMENTS. THE
HAZARDS NDFD GRAPHICS WILL BE LABELED EXPERIMENTAL.
MORE SPECIFIC INFORMATION ABOUT ACCESSING THESE NEW ELEMENTS
USING THE STANDARD NDFD ACCESS METHODS IS AVAILABLE ONLINE AT
/USE LOWER CASE LETTERS/:
HTTP://WWW.WEATHER.GOV/NDFD/HAZARDS_NDFD_EXPER_IMPLEM.HTM
IF JULY 08 2008 IS A CRITICAL WEATHER DAY...THIS IMPLEMENTATION
MAY BE POSTPONED. IN THAT CASE USERS WILL BE NOTIFIED OF THAT
DECISION VIA A TECHNICAL IMPLEMENTATION NOTICE AS FAR IN ADVANCE
AS POSSIBLE.
GENERAL INFORMATION ON ACCESSING AND USING NDFD ELEMENTS IS
AVAILABLE ONLINE AT /USER LOWER CASE LETTERS/:
HTTP://NDFD.WEATHER.GOV/TECHNICAL.HTM
COMMENTS AND FEEDBACK ON THE EXPERIMENTAL HAZARDS ELEMENT WILL BE
ACCEPTED THROUGH JANUARY 8 2009. LINKS TO ONLINE SURVEYS FOR NDFD
CUSTOMERS ARE /USE LOWER CASE LETTERS/:
GRIB2 USERS:
HTTP://WWW.WEATHER.GOV/SURVEY/NWS-SURVEY.PHP?CODE=NDFD-GRIDS
USERS OF XML SOAP SERVICE:
HTTP://WWW.WEATHER.GOV/SURVEY/NWS-SURVEY.PHP?CODE=XMLSOAP
USERS OF THE NDFD IMAGES:
HTTP://WWW.WEATHER.GOV/SURVEY/NWS-SURVEY.PHP?CODE=GFP
THE NEW HAZARDS ELEMENT WILL REMAIN EXPERIMENTAL UNTIL ALL
FEEDBACK RECEIVED BY THE CLOSE OF THE COMMENT PERIOD HAS BEEN
ASSESSED AND A TECHNICAL ANALYSIS IS COMPLETED. AT THAT TIME NWS
WILL DETERMINE WHETHER TO TRANSITION THESE EXPERIMENTAL ELEMENTS
TO OPERATIONAL STATUS... DISCONTINUE THEM...OR REVISE AND RETAIN
THEM AS EXPERIMENTAL ELEMENTS.
FOR GENERAL QUESTIONS REGARDING THE NDFD...PLEASE EMAIL:
NWS.NDFD@xxxxxxxx
FOR TECHNICAL QUESTIONS REGARDING THE NDFD DATA...PLEASE CONTACT:
DAVID RUTH
CHIEF...MESOSCALE PREDICTION BRANCH
NATIONAL WEATHER SERVICE
OFFICE OF SCIENCE AND TECHNOLOGY
1325 EAST WEST HIGHWAY
SILVER SPRING MARYLAND 20910
EMAIL: DAVID.RUTH@xxxxxxxx
FOR QUESTIONS REGARDING THIS NOTICE...PLEASE CONTACT:
MARK TEW
NATIONAL MARINE PROGRAM LEADER
OFFICE OF CLIMATE WATER AND WEATHER SERVICES
MARINE AND COASTAL WEATHER SERVICES BRANCH
1325 EAST WEST HIGHWAY
SILVER SPRING MARYLAND 20910
EMAIL: MARK.TEW@xxxxxxxx
NWS TECHNICAL IMPLEMENTATION NOTICES RELATED TO NDFD ARE ONLINE
AT /USE LOWER CASE LETTERS/:
HTTP://WWW.WEATHER.GOV/NDFD/TINS.HTM
NWS TECHNICAL IMPLEMENTATION NOTICES ARE ONLINE AT
/USE LOWER CASE/:
HTTP://WWW.NWS.NOAA.GOV/OM/NOTIF.HTM
$$