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PNSWSH

SERVICE CHANGE NOTICE 10-21
NATIONAL WEATHER SERVICE HEADQUARTERS WASHINGTON DC
750 AM EDT THU APR 1 2010

TO:       SUBSCRIBERS:
          -FAMILY OF SERVICES
          -NOAA WEATHER WIRE SERVICE
          -EMERGENCY MANAGERS WEATHER INFORMATION NETWORK
          -NOAAPORT
          OTHER NWS PARTNERS...AND NWS EMPLOYEES

FROM:     ELI JACKS
          CHIEF...FIRE AND PUBLIC WEATHER SERVICES BRANCH

SUBJECT:  NWS FORECAST OFFICE RIVERTON WY WILL SPLIT ITS FIRE
          WEATHER ZONE WYZ289 INTO TWO FIRE WEATHER ZONES
          EFFECTIVE MAY 01 2010

EFFECTIVE SATURDAY MAY 01 2010 AT 1200 COORDINATED UNIVERSAL 
TIME /UTC/...THE NWS WEATHER FORECAST OFFICE /WFO/ IN RIVERTON 
WYOMING /RIW/ WILL SPLIT ITS GRANITE/GREEN/FERRIS/RATTLESNAKE 
MOUNTAINS FIRE WEATHER ZONE /WYZ289/ INTO TWO SEPARATE FIRE 
WEATHER ZONES. THE TWO FIRE WEATHER ZONES WILL BE A TRUNCATED 
GRANITE/GREEN/FERRIS/RATTLESNAKE MOUNTAINS FIRE WEATHER ZONE 
/WYZ289/ AND A NEW CASPER MOUNTAIN FIRE WEATHER ZONE /WYZ300/.  
THIS CHANGE WILL IMPROVE FIRE WEATHER SERVICES INCLUDING 
IMPROVED WATCH...WARNING AND FORECAST PRODUCTS.

GRANITE/GREEN/FERRIS/RATTLESNAKE MOUNTAINS FIRE WEATHER ZONE 
/WYZ289/ WILL RETAIN ITS ZONE NAME AND NUMBER BECAUSE THE 
CLIMATOLOGY OF THE ZONE WILL NOT CHANGE SIGNIFICANTLY AS A 
RESULT OF THE TRUNCATION. CASPER MOUNTAIN FIRE WEATHER ZONE 
/WYZ300/ IS ASSIGNED A NEW ZONE NAME AND NUMBER TO ACCOUNT FOR 
ITS DIFFERING CLIMATOLOGY.

GRAPHICAL DEPICTIONS OF THIS CHANGE ARE ONLINE AT  
/USE LOWERCASE/:

  HTTP://WWW.WEATHER.GOV/OM/NOTIFICATION/IMAGES/RIW1.GIF
AND
  HTTP://WWW.WEATHER.GOV/OM/NOTIFICATION/IMAGES/RIW2.GIF

TABLE 1. NEW FIRE WEATHER ZONE /Z/ FORM OF THE UNIVERSAL 
GEOGRAPHIC CODE /UGC/ AND NAMES FOR WFO RIW USERS:

NEW FIRE             NEW        OLD FIRE              OLD
 ZONE NAME           UGC /Z/     ZONE NAME            UGC /Z/
-------------        -------    -------------         -------
GRANITE/GREEN/       WYZ289     GRANITE/GREEN/        WYZ289
 FERRIS/RATTLESNAKE              FERRIS/RATTLESNAKE
 MOUNTAINS                       MOUNTAINS

CASPER MOUNTAIN      WYZ300     N/A                   N/A

TABLE 2 PRODUCTS AFFECTED BY THIS CHANGE

PRODUCT NAME                  WMO HEADER     AWIPS ID
------------                  ----------     --------
FIRE WEATHER WATCH            WWUS85 KRIW    RFWRIW
RED FLAG WARNING              WWUS85 KRIW    RFWRIW
FIRE WEATHER PLANNING         FNUS55 KRIW    FWFRIW
 FORECAST

NWS PARTNERS AND USERS SHOULD TAKE APPROPRIATE ACTION/S/ TO 
ENSURE SYSTEMS/S/ RECOGNIZE THE NEW UGC AND ZONE ALIGNMENTS.

AN UPDATED FIRE WEATHER FORECAST ZONE SHAPEFILE IS ONLINE AT 
/USE LOWER CASE/:

   HTTP://WWW.WEATHER.GOV/GEODATA/CATALOG/WSOM/HTML/FIREZONE.HTM

IF YOU HAVE ANY QUESTIONS...PLEASE CONTACT: 

ANDREW CHURCH
FIRE WEATHER PROGRAM LEADER
NATIONAL WEATHER SERVICE
12744 WEST U.S. HIGHWAY 26
RIVERTON WYOMING 82501
307-857-3898
ANDREW.CHURCH@NOAA.GOV

CHRIS JONES
WARNING COORDINATION METEOROLOGIST
NATIONAL WEATHER SERVICE
12744 WEST U.S. HIGHWAY 26
RIVERTON WYOMING 82501
307-857-3898 X726
CHRIS.JONES@NOAA.GOV

NATIONAL SERVICE CHANGE NOTICES ARE ONLINE AT /USE LOWERCASE/:

    HTTP://WWW.WEATHER.GOV/OS/NOTIF.HTM

$$
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