-------- Original Message --------
983
NOUS41 KWBC 161159
PNSWSH
SERVICE CHANGE NOTICE 07-12
NATIONAL WEATHER SERVICE HEADQUARTERS WASHINGTON DC
800 AM EDT FRI MAR 16 2007
TO: FAMILY OF SERVICES /FOS/ SUBSCRIBERS...NOAA WEATHER
WIRE SERVICE /NWWS/ SUBSCRIBERS...EMERGENCY
MANAGERS WEATHER INFORMATION NETWORK /EMWIN/
SUBSCRIBERS...NOAAPORT SUBSCRIBERS...NATIONAL WEATHER
SERVICE /NWS/ PARTNERS AND OTHER USERS...AND NWS
EMPLOYEES
FROM: THOMAS GRAZIANO
ACTING CHIEF...HYDROLOGIC SERVICES DIVISION
SUBJECT: INCLUSION OF EXPERIMENTAL VALID TIME EVENT CODE
/VTEC/ IN AREAL FLOOD PRODUCTS ISSUED BY SELECTED
WEATHER FORECAST OFFICES: EFFECTIVE APRIL 2 2007
REFER TO: SERVICE CHANGE NOTICE /SCN/ 06-02 TRANSMITTED
JANUARY 19 2006 AND CORRECTED SCN 06-02 TRANSMITTED
JANUARY 26 2006
EFFECTIVE APRIL 2 2007 AT 1200 COORDINATED UNIVERSAL TIME
/UTC/... SELECTED NWS WEATHER FORECAST OFFICES /WFO/ WILL BEGIN
INCLUDING EXPERIMENTAL VTEC IN THE FOLLOWING AREAL FLOOD
PRODUCTS:
FLASH FLOOD WARNING /FFW/
FLASH FLOOD STATEMENT /FFS/
AREAL FLOOD WARNING /FLW/
FLOOD STATEMENT - FOLLOW UP TO AREAL FLOOD WARNING /FLS/
FLOOD STATEMENT - AREAL ADVISORIES /FLS/
NOTE: EXPERIMENTAL VTEC FOLLOWS ALL VTEC STANDARDS AS DESCRIBED
IN NWS INSTRUCTION 10-1703...BUT USES THE EXPERIMENTAL /X/
PRODUCT CLASS CODE.
AS INDICATED IN SCN 06-02 AND CORRECTED SCN 06-02...INCLUSION OF
HYDROLOGIC VTEC HAS BEEN PLANNED FOR AREAL FLOOD PRODUCTS FOR
SOME TIME. MORE TIME WAS NEEDED TO ENSURE VTEC WAS READY FOR
THESE PRODUCTS.
THE IMPLEMENTATION OF EXPERIMENTAL VTEC AT SELECTED WFOS IS
BEING DONE AS PART OF A RISK REDUCTION ACTIVITY TO DETERMINE
READINESS FOR NATIONAL IMPLEMENTATION. PENDING A SUCCESSFUL RISK
REDUCTION ACTIVITY...NATIONWIDE IMPLEMENTATION OF EXPERIMENTAL
VTEC IN THE ABOVE PRODUCTS IS PLANNED TO OCCUR BY SEPTEMBER 13
2007. FULL OPERATIONAL IMPLEMENTATION IS SLATED FOR OCTOBER 17
2007. THE ONLY CHANGE TAKING PLACE ON OCTOBER 17 WILL BE A
SWITCH FROM USING THE EXPERIMENTAL /X/ PRODUCT CLASS CODE TO THE
OPERATIONAL /O/ PRODUCT CLASS CODE.
THE LATEST AVAILABLE INFORMATION ON IMPLEMENTATION OF VTEC IN
ALL NWS HYDROLOGIC PRODUCTS...INCLUDING TABLES LISTING THE WFOS
PARTICIPATING IN THIS RISK REDUCTION ACTIVITY...CAN BE FOUND ON
THE HYDROLOGIC VTEC WEBSITE AT /USE LOWER CASE LETTERS/:
HTTP://WWW.WEATHER.GOV/OS/VTEC/HYDRO_VTEC.SHTML
TO SUBSCRIBE TO NOTIFICATIONS VIA RSS FEED WHEN ANY ITEM ON THE
HYDROLOGIC VTEC WEBSITE IS UPDATED...CLICK THE RSS/XML LOG AT
THE TOP OF THE WEB PAGE....OR ADD THE FOLLOWING RSS FEED URL:
HTTP://WWW.NWS.NOAA.GOV/OS/VTEC/HYDRO/HYDROVTEC.XML.RSS /USE
LOWER CASE LETTERS/ TO YOUR RSS READER TO SUBSCRIBE.
GENERAL BACKGROUND INFORMATION ON VTEC CAN BE FOUND AT THE VTEC
WEBSITE AT /USE LOWER CASE LETTERS/:
HTTP://WWW.NWS.NOAA.GOV/OS/VTEC
IF YOU HAVE ANY QUESTIONS OR COMMENTS...PLEASE CONTACT:
TIM HELBLE
NATIONAL HYDROLOGIC POLICY PROGRAM LEADER
SILVER SPRING MD
PHONE: 301-713-0006 EXT. 152
E-MAIL: TIMOTHY.HELBLE@xxxxxxxx
THIS AND OTHER NWS SERVICE CHANGE NOTICES ARE AVAILABLE ONLINE
AT /USE LOWER CASE LETTERS/:
HTTP://WWW.NWS.NOAA.GOV/OS/NOTIF.HTM
$$
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