PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
830 AM EDT WED JUL 27 2011

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

FROM:    FIONA HORSFALL
         CHIEF, CLIMATE SERVICES DIVISION

SUBJECT: CHANGE TO NEW 1981-2010 CLIMATE NORMALS
         EFFECTIVE AUGUST 1.

THE NWS WILL INCORPORATE THE NEW 1981-2010 CLIMATE NORMALS INTO OUR
CLIMATE TEXT PRODUCTS ON AUGUST 1. THE PRODUCTS AFFECTED WILL BE:

     DAILY CLIMATOLOGICAL REPORT (CLI)
     MONTHLY CLIMATOLOGICAL REPORT (CLM)
     QUARTERLY CLIMATOLOGICAL REPORT (CLQ)
     SEASONAL CLIMATOLOGICAL REPORT (CLS)
     ANNUAL CLIMATOLOGICAL REPORT (CLA)
     PRELIMINARY LOCAL CLIMATOLOGICAL DATA REPORT (CF6)

ANY PRODUCT THAT HAS DATA THAT CROSSES THE AUGUST 1 IMPLEMENTATION DATE,
SUCH AS THE QUARTERLY, SEASONAL AND ANNUAL CLIMATOLOGICAL REPORTS, WILL
USE THE NEW 1981-2010 CLIMATE NORMALS FOR REQUIRED CALCULATIONS FOR THE
ENTIRE PERIOD.

PRODUCTS ISSUED PRIOR TO THE CHANGE DATE WILL NOT BE REISSUED USING THE
NEW CLIMATE NORMALS.

CLIMATE NORMALS ARE CALCULATED EVERY 10 YEARS AND ARE AN AVERAGE OF 30
YEARS OF CLIMATE DATA.  THE CALCULATIONS ARE DONE BY THE NATIONAL CLIMATIC
DATA CENTER.  MORE INFORMATION CAN BE FOUND AT;

HTTP://WWW.NCDC.NOAA.GOV/OA/CLIMATE/NORMALS/USNORMALS.HTML

IF YOU HAVE ANY QUESTION OR COMMENTS, PLEASE CONTACT:

   JIM ZDROJEWSKI
   CLIMATE DATA PROGRAM ANALYST
   SILVER SPRING, MD 20910
   301-713-1970 X181
   JAMES.ZDROJEWSKI@NOAA.GOV

NATIONAL PUBLIC INFORMATION STATEMENTS ARE ONLINE:

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

$$

BARRY

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