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550 NOUS41 KWBC 162129 PNSWSH TECHNICAL IMPLEMENTATION NOTICE 04-12 NATIONAL WEATHER SERVICE HEADQUARTERS WASHINGTON DC 430 PM EST TUE MAR 16 2004 TO: FAMILY OF SERVICES /FOS/ SUBSCRIBERS...NOAA WEATHER WIRE SERVICE /NWWS/ SUBSCRIBERS...EMERGENCY MANAGERS WEATHER INFORMATION NETWORK /EMWIN/ SUBSCRIBERS...OTHER NATIONAL WEATHER SERVICE /NWS/ CUSTOMERS OF AVIATION...CLIMATOLOGICAL DATA AND FORECASTS...NWS EMPLOYEES FROM: RAINER DOMBROWSKY CHIEF...OBSERVING SERVICES DIVISION SUBJECT: AUTOMATED SURFACE OBSERVING SYSTEM /ASOS/ PRECIPITATION ACCUMULATION SENSOR REPLACEMENT...BEGINNING APRIL 2004 THE FOLLOWING CHANGES HAVE NO DIRECT IMPACT ON NOAA WEATHER WIRE SERVICE SUBSCRIBERS. THE ASOS PRODUCT IMPROVEMENT PROGRAM WILL SOON BEGIN REPORTING DATA FROM A NEW PRECIPITATION GAUGE...THE ALL WEATHER PRECIPITATION ACCUMULATION GAUGE /AWPAG/. THE PRESENT GAUGE...A HEATED TIPPING BUCKET /HTB/ GAUGE IS PRONE TO UNDER-REPORTING FROZEN AND FREEZING PRECIPITATION. THE AWPAG IS A HEATED WEIGHING GAUGE AND IS MORE ACCURATE IN MEASURING AND REPORTING FREEZING AND FROZEN PRECIPITATION. THE AWPAG HAS FIELD TESTED THROUGHOUT THE PAST WINTER. BEGINNING IN APRIL 2004...THE NWS WILL BEGIN TO INSTALL THE AWPAG AT 332 LOCATIONS. INSTALLATIONS ARE EXPECTED TO BE COMPLETED BY OCTOBER OF 2004. NWS OFFICES WILL PROVIDE ADDITIONAL NOTICES THROUGH LOCAL PUBLIC INFORMATION STATEMENTS AS EACH LOCATION BECOME OPERATIONAL. MORE DETAILED IMPLEMENTATION INFORMATION...INCLUDING AWPAG LOCATIONS...IS AVAILABLE ON THE SURFACE OBSERVATION PROGRAM WEB PAGE AT /USE LOWER CASE LETTERS EXCEPT S IN SURFACE/: http://www.nws.noaa.gov/ops2/Surface/implementation.htm THEN CLICK ON AWPAG IMPLEMENTATION SITES IF YOU HAVE ANY QUESTIONS ABOUT THIS CHANGE...PLEASE CONTACT ONE OF THE FOLLOWING INDIVIDUALS AT NWS HEADQUARTERS IN SILVER SPRING MARYLAND: STEVEN PRITCHETT SURFACE OBSERVATIONS PROGRAM MANAGER PHONE: 301-713-1792 X 181 E-MAIL: STEVEN.PRITCHETT@xxxxxxxx OR DAVID MANNARANO SURFACE OBSERVING SYSTEMS IMPLEMENTATION MANAGER PHONE: 301-713-2093 X 103 E-MAIL: DAVID.MANNARANO@xxxxxxxx OR RICHARD AHLBERG ASOS PRODUCT IMPROVEMENT PROGRAM MANAGER PHONE: 301-713-1975 X 160 E-MAIL: RICHARD.AHLBERG@xxxxxxxx THIS AND OTHER NWS TECHNICAL IMPLEMENTATION NOTICES ARE AVAILABLE ONLINE AT /USE LOWER CASE LETTERS/: HTTP://WWW.NWS.NOAA.GOV/OM/NOTIF.HTM $$ ---------- End Forwarded Message ----------
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