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-------- 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 POINTSIN 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.PHPA 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 BROWSERTHE 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.PDFCUSTOMERS 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.HTMIF 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.HTMCOMMENTS 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=GFPTHE 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@xxxxxxxxNWS TECHNICAL IMPLEMENTATION NOTICES RELATED TO NDFD ARE ONLINE AT /USE LOWER CASE LETTERS/:
HTTP://WWW.WEATHER.GOV/NDFD/TINS.HTMNWS TECHNICAL IMPLEMENTATION NOTICES ARE ONLINE AT /USE LOWER CASE/:
HTTP://WWW.NWS.NOAA.GOV/OM/NOTIF.HTM $$
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