20070307: radiosonde replacement schedule-Fwd: ADMIN NOTICE NOUS41 KWBC]

[Linda Miller]

-------- Original Message --------

439 
NOUS41 KWBC 071751
PNSWSH

TECHNICAL IMPLEMENTATION NOTICE 07-16
NATIONAL WEATHER SERVICE HEADQUARTERS WASHINGTON DC
152 PM EST WED MAR 7 2007
         
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:  JIM OSULLIVAN       
  ACTING CHIEF... OBSERVING SERVICES DIVISION 
  OFFICE OF CLIMATE, WATER, AND WEATHER SERVICES 

SUBJECT:  FY 2007 SCHEDULE OF RADIOSONDE REPLACEMENT SYSTEM 
          /RRS/ IMPLEMENTATION WITH TERMINATION OF OPERATIONS OF
          RADIOTHEODOLITE TRACKING /ART/ AND RADIO DIRECTION 
          FINDING RADIOSONDES

THIS FISCAL YEAR NWS WILL TERMINATE UPPER AIR OBSERVATIONS FROM 
RADIO DIRECTION FINDING RADIOSONDES AND AUTOMATED RADIOTHEODOLITE 
TRACKING AT 13 SITES LISTED BELOW ON OR ABOUT THE DATES 
INDICATED.

SID       STATION NAME        OUTAGE DATE

72210     TAMPA BAY FL        12 MAR 2007
72426     WILMINGTON OH       26 MAR 2007
72202     MIAMI FL            23 APR 2007     
72327     NASHVILLE TN        07 MAY 2007     
74389     TUCSON AZ           22 MAY 2007      
72582     ELKO NV             04 JUN 2007     
72694     SALEM OR            18 JUN 2007     

SID       STATION NAME        OUTAGE DATE

72768     GLASGOW MT          02 JUL 2007  
74560     LINCOLN IL          16 JUL 2007   
72440     SPRINGFIELD MO      30 JUL 2007    
72634     GAYLORD MI          13 AUG 2007    
72562     NORTH PLATTE NE     28 AUG 2007      
72558     VALLEY NE           08 SEP 2007    

NWS UPPER AIR OBSERVATIONS WILL RESUME APPROXIMATELY 2 WEEKS 
LATER. NWS WILL USE THE RRS WITH GLOBAL POSITIONING SYSTEM /GPS/ 
RADIOSONDES.  EACH OF THESE SITES WILL BE OUT OF SERVICE FOR UP 
TO 2 WEEKS. WHEN RESTORED PARTS OF THE UPPER AIR CODED MESSAGES 
WILL BE SIGNIFICANTLY LONGER.

NWS HAS COORDINATED WITH ITS PARTNERS ON THE LONGER LENGTH OF 
THESE MESSAGES.

THE FORMAT OF THE MESSAGES WILL BE THE SAME WMO FORMAT FOR CODED 
UPPER AIR MESSAGES IN USE WITH THE MICROART LEGACY SYSTEM. THE 
NUMBER OF LEVELS IN THE CODED MESSAGES WILL BE TWO TO THREE TIMES 
GREATER FOR THE TTBB AND TTDD. AS A RESULT TWO CATEGORIES OF 
AWIPS TEXT PRODUCTS WILL INCREASE IN SIZE: SGL AND ABV. THE 
NUMBER OF LEVELS IN THE TTAA...TTCC...PPBB AND PPDD PARTS WILL 
BE RELATIVELY UNCHANGED. THESE CHANGES REFLECT UPDATED CODING 
PRACTICES AND HIGHER RESOLUTION LEVEL SELECTION CRITERIA. THE 
MAXIMUM SIZE LIMITS OF THE PARTS OF THE CODED MESSAGES ARE AS 
FOLLOWS: 

     TTAA:  15  LEVELS  
     TTCC:  10  LEVELS     
     TTBB: 135  LEVELS      
     TTDD:  40  LEVELS 
     PPBB:  40  LEVELS  
     PPDD:  40  LEVELS 

IN ADDITION THE 31313 MESSAGE INDICATOR ASSOCIATED WITH VARIOUS 
PARTS OF THE MESSAGE WILL BE INCLUDED WITH EACH PART OF THE 
THERMODYNAMIC MESSAGE PARTS. FOR ADDITIONAL INFORMATION ON THE 
MESSAGE REQUIREMENTS...REFERENCE WMO 306...MANUAL ON CODES... 
INTERNATIONAL CODES...VOLUME 1.1 PART A-ALPHANUMERIC CODES... 
AND WMO 306...MANUAL ON CODES...REGIONAL CODES AND NATIONAL 
CODING PRACTICES...VOLUME II. USERS CAN FIND INFORMATION ON THE 
LEVELS SELECTION CRITERIA USED IN NWS CODING SOFTWARE ONLINE AT  
/USE LOWERCASE LETTERS/:

     HTTP://WWW.UA.NWS.NOAA.GOV

IF YOU HAVE QUESTIONS OR FEEDBACK...PLEASE CONTACT:

     DOMINIC BOSCO
     NATIONAL WEATHER SERVICE / OPS11
     1325 EAST WEST HIGHWAY
     SILVER SPRING MARYLAND 20910
     PHONE: 301-713-1841 EXT. 123 
     E-MAIL: DOMINIC.BOSCO at NOAA.GOV

THIS AND OTHER NWS TECHNICAL IMPLEMENTATION NOTICES ARE AVAILABLE 
ONLINE AT /USE LOWER CASE LETTERS/:

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

$$


-- 
Linda Miller - lmiller at unidata.ucar.edu
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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