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846
NOUS41 KWBC 251449
PNSWSH
SERVICE CHANGE NOTICE 05-24...UPDATED
NATIONAL WEATHER SERVICE HEADQUARTERS WASHINGTON DC
1050 AM EDT TUE OCT 25 2005
TO: FAMILY OF SERVICES /FOS/ SUBSCRIBERS...
NOAA WEATHER WIRE SERVICE /NWWS/ SUBSCRIBERS...
EMERGENCY MANAGERS WEATHER INFORMATION NETWORK
/EMWIN/ SUBSCRIBERS...NOAAPORT SUBSCRIBERS...
OTHER NATIONAL WEATHER SERVICE /NWS/ CUSTOMERS
AND PARTNERS...AND NWS EMPLOYEES
FROM: ROBERT J. MCLEOD
CHIEF...AWARENESS BRANCH
OFFICE OF CLIMATE...WATER...AND WEATHER SERVICES
SUBJECT: OPERATIONAL IMPLEMENTATION OF THE VALID TIME EVENT
CODE /VTEC/ IN SEVEN NWS EVENT-DRIVEN PRODUCTS AND
TWO ROUTINE MARINE PRODUCTS: EFFECTIVE NOVEMBER 1
2005: REMINDER AND UPDATE
UPDATED TO INCLUDE FLEXIBILITY IN IMPLEMENTING VTEC FOR WEATHER
FORECAST OFFICES /WFOS/ EXPERIENCING HAZARDOUS WEATHER LOCALLY ON
NOVEMBER 1 2005.
ON TUESDAY... NOVEMBER 1 2005 AT 1800 COORDINATED UNIVERSAL TIME
/UTC/... ALL WFOS IN THE CONTIGUOUS UNITED STATES /CONUS/ WILL
TRANSITION FROM EXPERIMENTAL VALID TIME EVENT CODE /VTEC/ TO
OPERATIONAL VTEC IN SEVEN NWS EVENT-DRIVEN OR NON-ROUTINE PRODUCT
CATEGORIES...INCLUDING ONE NATIONAL EVENT-DRIVEN PRODUCT CATEGORY.
TWO WFO ROUTINE MARINE FORECASTS ALSO WILL TRANSITION FROM USE OF
EXPERIMENTAL VTEC TO OPERATIONAL VTEC ON NOVEMBER 1 2005.
IF NOVEMBER 1 2005 IS DECLARED A NATIONAL CRITICAL WEATHER DAY...
IMPLEMENTATION WILL OCCUR ON THE NEXT WEEKDAY NOT DECLARED A
CRITICAL WEATHER DAY.
UPDATED INFORMATION...IN THE EVENT OF LOCAL HAZARDOUS WEATHER...
WFO/S MAY CHOOSE TO IMPLEMENT VTEC ANYTIME ON NOVEMBER 1 2005
BEGINNING AT 0000 UTC OR...IF NECESSARY...DELAY IMPLEMENTATION
UNTIL THE NEXT DAY.
BEGINNING ON THE IMPLEMENTATION DATE...THE FOLLOWING NWS TEXT
PRODUCT CATEGORIES ISSUED BY CONUS WFO/S WILL CONTAIN OPERATIONAL
VTEC:
WFO EVENT-DRIVEN PUBLIC PRODUCTS
WATCH COUNTY NOTIFICATION WCN
WINTER WEATHER MESSAGE WSW
NON-PRECIPITATION WEATHER MESSAGE NPW
WFO EVENT-DRIVEN HYDROLOGIC PRODUCTS
FLOOD WATCH AND FLASH FLOOD WATCH FFA
WFO EVENT-DRIVEN COASTAL AND MARINE PRODUCTS
COASTAL HAZARD MESSAGE AND LAKESHORE HAZARD
MESSAGE /INCLUDING HIGH SURF/ CFW
WFO EVENT-DRIVEN FIRE WEATHER PRODUCTS
RED FLAG WARNING AND FIRE WEATHER WATCH RFW
NATIONAL EVENT-DRIVEN PRODUCT
WATCH OUTLINE UPDATE /AS NEEDED UPDATES/ WOU
WFO ROUTINE MARINE FORECASTS
COASTAL WATERS FORECAST CWF
GREAT LAKES NEARSHORE FORECAST NSH
THESE OPERATIONAL VTEC PRODUCT CATEGORIES WILL JOIN THE FIVE
PRODUCT CATEGORIES FROM ALL WFO/S WHICH BEGAN USING OPERATIONAL
VTEC ON FEBRUARY 8 2005 AND MARCH 16 2005:
SEVERE THUNDERSTORM WARNING SVR
TORNADO WARNING TOR
SEVERE WEATHER STATEMENT SVS
SPECIAL MARINE WARNING SMW
MARINE WEATHER STATEMENT /FOLLOW-UP TO SMW/ MWS
COMPLETE INFORMATION ON VTEC CAN BE FOUND IN NWS INSTRUCTION 10-
1703 AND AT THE VTEC WEB SITE AT /USE LOWER CASE LETTERS/:
HTTP://WWW.NWS.NOAA.GOV/OS/VTEC
IF YOU HAVE ANY QUESTIONS OR COMMENTS...PLEASE CONTACT:
HERB WHITE MARK TEW
DISSEMINATION SERVICES OR PUBLIC WEATHER WARNING
MANAGER PROGRAM MANAGER
SILVER SPRING MARYLAND SILVER SPRING MARYLAND
PHONE: 301-713-0090 X 146 301-713-1867 X 103
E-MAIL: HERBERT.WHITE@xxxxxxxx MARK.TEW@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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