Hydrologic Product Format Changes and VTEC Implementation for Certain Hydrologic Products

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SERVICE CHANGE NOTICE
NATIONAL WEATHER SERVICE DODGE CITY KANSAS
300 PM CDT MON 24 APR 2006
 

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...NWS EMPLOYEES

FROM:      LARRY J. RUTHI  
                  METEOROLOGIST IN CHARGE             
           
SUBJECT: UPCOMING CHANGES IN HYDROLOGIC PRODUCT FORMATS...IMPLEMENTATION
OF VTEC FOR CERTAIN HYDROLOGIC PRODUCTS

THE NEW FORMATS ARE SCHEDULED TO BE IMPLEMENTED ON MAY 23 2006. ANY
CHANGE TO THE IMPLEMENTATION DATE WILL BE ANNOUNCED IN FOLLOW UP
SERVICE CHANGE NOTICES.  THE NEW FORMATS WILL BE FOR THE FOLLOWING
PRODUCTS...

    1. FLOOD WARNING FOR FORECAST POINTS /FLW/
    2. FLOOD STATEMENT - FOLLOW UP FLOOD WARNING FOR FORECAST POINTS /FLS/
    3. AREAL FLOOD WARNING /FLW/
    4. FLOOD STATEMENT - FOLLOW UP AREAL FLOOD WARNING /FLS/
    5. FLOOD STATEMENT - AREAL ADVISORIES /FLS/
    6. FLOOD ADVISORY FOR FORECAST POINTS /FLS/
    7. FLOOD WATCH FOR FORECAST POINTS /FFA/

THESE NEW FORMATS INVOLVE SEGMENTATION OF ALL SEVEN PRODUCTS LISTED ABOVE
AND BULLETING OF ALL BUT PRODUCT NUMBER 4.

SOME HIGHLIGHTS OF THE NEW HYDROLOGIC PRODUCT FORMATS ARE AS
FOLLOWS...
    1.  FLOOD WARNINGS FOR FORECAST POINTS ON RIVERS AND STREAMS WILL
BE BULLETED AND USE A ONE FORECAST POINT PER SEGMENT FORMAT...
WITH EACH SEGMENT ENDING WITH A DOUBLE DOLLAR SIGN /$$/.

    2.  EACH SEGMENT IN A FLOOD WARNING FOR FORECAST POINTS WILL HAVE
ITS OWN UNIVERSAL GEOGRAPHIC CODE/S/ /UGC/ LISTED WITH THE
ASSOCIATED FORECAST POINT. THIS MEANS THE SAME UGC COULD OCCUR IN
MULTIPLE SEGMENTS IF A COUNTY HAS MORE THAN ONE FORECAST POINT.

    3.  AREAL FLOOD WARNINGS AND ADVISORIES WILL USE A BULLETED...
SEGMENTED FORMAT.

VTEC ENCODED HYDROLOGIC PRODUCTS FOR FORECAST POINTS ARE SCHEDULED
TO BE IMPLEMENTED ON MAY 23 2006. THIS IMPLEMENTATION WILL INCLUDE THE
FOLLOWING HYDROLOGIC PRODUCTS:

    1. FLOOD WARNING FOR FORECAST POINTS /FLW/
    2. FLOOD STATEMENT - FOLLOW UP FLOOD WARNING FOR FORECAST POINTS /FLS/
    3. FLOOD ADVISORY FOR FORECAST POINTS /FLS/
    4. FLOOD WATCH FOR FORECAST POINTS /FFA/

THE START DATES FOR VTEC ENCODED AREAL HYDROLOGIC PRODUCTS WILL BE ANNOUNCED
IN SUBSEQUENT SERVICE CHANGE NOTICES. THIS PHASED IMPLEMENTATION
WILL OCCUR OVER THE NEXT YEAR AND WILL INCLUDE THE FOLLOWING
HYDROLOGIC PRODUCTS:

        1. FLASH FLOOD WARNINGS /FFW/
        2. FLASH FLOOD STATEMENTS /FFS/
        3. AREAL FLOOD WARNING /FLW/
        4. FLOOD STATEMENT - FOLLOW UP AREAL FLOOD WARNING /FLS/     
        5. FLOOD STATEMENT - AREAL ADVISORIES /FLS/

EXAMPLES OF HYDROLOGIC PRODUCTS WITH THE NEW FORMATS AND VTEC CAN
BE FOUND IN THE LATEST DRAFT OF NWS MANUAL 10-923...WHICH IS
AVAILABLE ONLINE AT /USE LOWER CASE LETTERS/:

     HTTP://WWW.WEATHER.GOV/OS/VTEC/PDFS/10-923_FUTURE.PDF

PROCEDURES ON THE CONTENT...FORMAT...AND APPLICATION OF VTEC IN
HYDROLOGIC PRODUCTS CAN BE FOUND IN NWS INSTRUCTION 10-922...
WHICH IS AVAILABLE AT /USE LOWER CASE LETTERS/:

     HTTP://WWW.WEATHER.GOV/OS/VTEC/PDFS/10-922_FUTURE.PDF

BACKGROUND INFORMATION ON VTEC CAN BE FOUND AT THE VTEC WEB SITE
AT /USE LOWER CASE LETTERS/:

     HTTP://WWW.WEATHER.GOV/OS/VTEC

THE LATEST AVAILABLE INFORMATION ON HYDROLOGIC VTEC... INCLUDING
NWSLI INFO AND SCHEDULES FOR RISK REDUCTION... OT&E... AND
OPERATIONAL IMPLEMENTATION WILL BE POSTED ON THE FOLLOWING WEB
SITE /USE LOWER CASE LETTERS/:

     HTTP://WWW.WEATHER.GOV/OS/VTEC/HYDRO_VTEC.SHTML

IF YOU HAVE ANY QUESTIONS OR COMMENTS...PLEASE CONTACT:

     RICHARD SLOAN
     NWS SERVICE HYDROLOGIST
     DODGE CITY KS 67801
     PHONE:  620-225-6514 EXT. 493
     E-MAIL: RICHARD.SLOAN@NOAA.GOV

THIS SERVICE CHANGE NOTICE IS AVAILABLE ON LINE AT /USE LOWER CASE
LETTERS/

HTTP://WWW.NWS.NOAA.GOV/DDC/  UNDER "TOP NEWS OF THE DAY".

NATIONAL SERVICE CHANGE NOTICES ARE AVAILABLE ONLINE AT /USE LOWER CASE LETTERS/

     HTTP://WWW.NWS.NOAA.GOV/OM/NOTIF.HTM/

$$

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