PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
810 AM CST MON FEB 11 2008
...UPDATED RECORD DATA FOR NORTH PLATTE NEBRASKA...
...UPDATED RECORD DATA FOR VALENTINE NEBRASKA...
TO: FAMILY OF SERVICES SUBSCRIBERS
NOAA WEATHER WIRE SERVICE SUBSCRIBERS
EMERGENCY MANAGERS WEATHER INFORMATION NETWORK
NOAAPORT SUBSCRIBERS
NATIONAL WEATHER SERVICE PARTNERS AND OTHER USERS
FROM: BRIAN HIRSCH
METEOROLOGIST IN CHARGE
NWS NORTH PLATTE NEBRASKA
SUBJECT: NOAA UPDATES ITS LONG TERM STATION EXTREMES OF DAILY
TEMPERATURE AND PRECIPITATION DATA THROUGH 2007.
LONG TERM TEMPERATURE AND PRECIPITATION DATA HAVE BEEN UPDATED
THROUGH 2007 FOR KEY U.S. WEATHER STATIONS.
FOR THE AREA COVERED BY THE NORTH PLATTE NEBRASKA NWS OFFICE...THIS
INCLUDES THE FOLLOWING CITIES...
STATION PERIOD OF RECORD WMO HEADING AWIPS ID
NORTH PLATTE 1874 TO 2008 CDUS43 OMACLILBF
VALENTINE 1885 TO 2008 CDUS43 OMACLIVTN
NORTH PLATTE 1874 TO 2008 CXUS53 OMACLMLBF
VALENTINE 1885 TO 2008 CXUS53 OMACLMVTN
IN ORDER TO PROVIDE THE LONGEST POSSIBLE PERIOD OF RECORD AT EACH
STATION TO DETERMINE EXTREMES...A PROJECT CALLED THREADEX /FOR
THREADED EXTREMES/ PIECES OR 'THREADS' STATION DATA TOGETHER TO FORM
A SINGLE...LONG TERM SET OF DAILY DATA. THE THREADEX PROJECT IS
OUTLINED AT:
HTTP://THREADEX.RCC-ACIS.ORG/ (USE LOWER CASE)
NOAA HAS BUILT "THREADS" FOR THE APPROXIMATELY 268 LOCATIONS
NATIONWIDE...INCLUDING THE STATION LISTED ABOVE...THAT ARE
PUBLISHED IN NCDC/S LOCAL CLIMATOLOGICAL DATA /LCD/. THE EXTREMES
DERIVED FROM THE THREADS ARE USED IN THE NWS'S DAILY AND MONTHLY
CLIMATE REPORTS /CLI AND CLM/...INCLUDING THE REPORTS LISTED ABOVE.
THREADEX ADDRESSES THE ISSUE OF FRAGMENTED WEATHER DATA OVER TIME
DUE TO STATION RELOCATIONS...WHICH HAVE HISTORICALLY INCLUDED
INSTRUMENTATION MOVES FROM CITY LOCATIONS TO AIRPORTS...AND MOVES
AT AIRPORTS DUE TO EXPANSIONS. OBTAINING A LONG TIME SERIES /ONE
HUNDRED YEARS OR MORE/ IS DIFFICULT UNLESS RECORDS AT VARIOUS
LOCATIONS ARE THREADED TOGETHER.
THREADING A STATION INVOLVES A NUMBER OF STEPS. THE RECORD OF A
CURRENTLY ACTIVE STATION IS USED AS THE STARTING POINT FOR A STATION
THREAD. THIS STATION/S CURRENT RECORD IS USED AS FAR BACK IN TIME AS
POSSIBLE. OTHER LOCAL WEATHER STATIONS NEARBY ARE THEN IDENTIFIED
TO EXTEND THE THREAD FURTHER BACK IN TIME...WITH PREFERENCE GIVEN TO
NATIONAL WEATHER SERVICE/BUREAU STATIONS. THE THREAD IS EXTENDED
BACK IN TIME AS FAR AS POSSIBLE USING NOAA DAILY DATA AVAILABLE IN
DIGITAL FORM. INPUT FROM PARTNERS...INCLUDING NWS WEATHER FORECAST
OFFICES...WAS THEN SOLICITED AND THIS LOCAL EXPERTISE WAS USED TO
FINE TUNE THE STATION THREADS.
THREADEX IS A COLLABORATIVE EFFORT BETWEEN THE NWS...NOAA'S
NATIONAL CLIMATIC DATA CENTER...THE NORTHEAST REGIONAL CLIMATE
CENTER...AND STATE CLIMATOLOGISTS.
IF YOU HAVE QUESTIONS REGARDING THE THREADEX PROJECT...PLEASE CONTACT:
MARK BYRD
OBSERVING PROGRAM LEADER
NWS NORTH PLATTE NEBRASKA
5250 E. LEE BIRD DRIVE
NORTH PLATTE, NEBRASKA 69101
PHONE: 308-532-0921
EMAIL: MARK.BYRD@NOAA.GOV
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