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-------- Original Message --------297 NOUS41 KWBC 211527
PNSWSH SERVICE CHANGE NOTICE 06-46 NATIONAL WEATHER SERVICE HEADQUARTERS WASHINGTON DC 1027 AM EST THU DEC 21 2006 TO: FAMILY OF SERVICES /FOS/ SUBSCRIBERS...NOAA WEATHERWIRE SERVICE /NWWS/ SUBSCRIBERS...EMERGENCY MANAGERS WEATHER INFORMATION NETWORK /EMWIN/ SUBSCRIBERS... NOAAPORT SUBSCRIBERS...OTHER NATIONAL WEATHER SERVICE /NWS/ CUSTOMERS AND PARTNERS...NWS EMPLOYEES
FROM: ELI JACKS
FIRE AND PUBLIC WEATHER SERVICES BRANCH CHIEF
SUBJECT: UNIVERSAL GEOGRAPHIC CODE /UGC/ CHANGE FOR AVALANCHE
WATCHES/WARNINGS IN CERTAIN MOUNTAINOUS AREAS
EFFECTIVE IMMEDIATELY
EFFECTIVE IMMEDIATELY CERTAIN NWS WEATHER FORECAST OFFICES /WFO/ IN MOUNTAINOUS AREAS OF NWS CENTRAL...SOUTHERN...AND WESTERN REGIONS MAY BEGIN USING THE ZONE /Z/ FORM OF THE UNIVERSAL GEOGRAPHIC CODE /UGC/ INSTEAD OF THE COUNTY /C/ FORM OF THE UGC FOR AVALANCHE WATCH /AVA/ AND AVALANCHE WARNING /AVW/ PRODUCTS. THE UGC CODE IS EMBEDDED WITHIN THE VALID TIME EVENT CODE /VTEC/ OF THESE PRODUCTS.
AFFECTED WFOS WILL WORK CLOSELY WITH THEIR USERS OF AVA/AVW PRODUCTS TO ENSURE USERS ARE AWARE OF THIS CHANGE IF IT AFFECTS AVA/AVW PRODUCTS THEY ISSUE. USERS UNSURE WHETHER THIS CHANGE AFFECTS AVA/AVW PRODUCTS THEY USE SHOULD CONTACT THE ISSUING WFO FOR GUIDANCE.
RECENT EXPERIENCE HAS SHOWN THAT USING THE COUNTY /C/ FORM OF THE UGC FOR AVA/AVW PRODUCTS IN MOUNTAINOUS AREAS OVERSTATES THE INTENDED WATCH/WARNING AREA. IN ADDITION USING THE ZONE /Z/ FORM OF THE UGC FOR AVA/AVW PRODUCTS MORE CLOSELY ALIGNS THESE PRODUCTS WITH OTHER WINTER WEATHER PRODUCTS THAT USE THE ZONE /Z/ FORM OF THE UGC.
TABLE 1 BELOW DETAILS THE GENERIC AWIPS ID AND WMO HEADINGS OF AVA/AVW PRODUCTS AFFECTED BY THIS CHANGE.
TABLE 1. AVA/AVW AWIPS ID AND WMO HEADINGSPRODUCT AWIPS ID WMO HEADING
AVALANCHE WATCH AVAXXX WOUSII KYYY AVALANCHE WARNING AVWXXX WOUSII KYYYNOTE: XXX IS THE THREE-LETTER WFO IDENTIFIER AND YYY IS THE AWIPS NODE.
AGAIN ...AFFECTED WFOS WILL WORK CLOSELY WITH THEIR USERS OF AVA/AVW PRODUCTS TO ENSURE USERS ARE AWARE OF THIS CHANGE IF IT AFFECTS AVA/AVW PRODUCTS THEY ISSUE. USERS UNSURE WHETHER THIS CHANGE AFFECTS AVA/AVW PRODUCTS THEY USE SHOULD CONTACT THE ISSUING WFO FOR GUIDANCE. ALTHOUGH THIS NOTIFICATION IS LESS THAN THE REQUIRED 120 DAYS AS SPECIFIED BY NWSI 10-1805... THE NWS BELIEVES IMMEDIATE IMPLEMENTATION IS WARRANTED BECAUSE AVALANCHE DANGER ALREADY EXISTS FOR WFOS WITH WARNING RESPONSIBILITY FOR MOUNTAINOUS AREAS.
IF YOU HAVE QUESTIONS ABOUT THESE CHANGES... PLEASE CONTACT:
PAUL STOKOLS
NATIONAL WEATHER SERVICE
1325 EAST WEST HIGHWAY
SILVER SPRING MD 20910
PHONE: 301-713-1867
EMAIL: PAUL.STOKOLS@xxxxxxxx
THIS AND OTHER NWS SERVICE CHANGE NOTICES ARE POSTED AT
/USE LOWER CASE LETTERS/:
HTTP://WWW.NWS.NOAA.GOV/OM/NOTIF.HTM
$$
--
Linda Miller - lmiller@xxxxxxxxxxxxxxxx
Community Services, Unidata
University Corporation for Atmospheric Research
P.O. Box 3000
Boulder, CO 80307-3000
303-497-8646 fax: 303-497-8690
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