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498 NOUS41 KWBC 101432 PNSWSH PUBLIC INFORMATION STATEMENT...SERVICE CHANGE NOTICE 00-70 NATIONAL WEATHER SERVICE HEADQUARTERS WASHINGTON DC 1040 AM EDT MON JUL 10 2000 TO FAMILY OF SERVICES/FOS/SUBSCRIBERS...NOAA WEATHER WIRE SERVICE/NWWS/SUBSCRIBERS...OTHER NATIONAL WEATHER SERVICE/NWS/CUSTOMERS...NWS EMPLOYEES FROM THERESE PIERCE...CHIEF...HYDROMETEOROLOGICAL SERVICES SUBJECT EXPANDED CODED CITIES FORECAST AND DIGITAL FORECAST PRODUCTS FROM BALTIMORE/WASHINGTON D.C ...EFFECTIVE SEPTEMBER 1 2000 ON FRIDAY SEPTEMBER 1 2000...AT 400 AM EDT... THE NATIONAL WEATHER SERVICE IN BALTIMORE/WASHINGTON WILL OFFICIALLY BEGIN ISSUING AN EXPANDED VERSION OF THE CODED CITIES FORECAST AND A NEW EXPERIMENTAL PRODUCT CALLED THE DIGITAL ZONE FORECAST. THE DIGITAL FORMAT OF THESE PRODUCTS WILL FACILITATE THEIR USE WITH COMPUTERS. THE EXPANDED CODED CITIES FORECAST WILL BE SIMILAR TO THE EXISTING PRODUCT FOR DAYS 1 AND 2...BUT WILL INCLUDE FORECASTS OUT TO FIVE DAYS. THE WMO HEADER WILL BE CONTINUE TO BE FPUS41 KWBC. THE NWWS HEADER WBCCCFWBC WILL ALSO REMAIN UNCHANGED. CUSTOMERS WILL NOT NEED TO MAKE ANY COMMUNICATION CHANGES TO CONTINUE RECEIVING THIS PRODUCT. THE FOLLOWING IS AN EXAMPLE OF THE EXPANDED CODED CITIES FORECAST... FPUS41 KLWX 052000 CCFWBC BWI TA 055/074 038/059 038 25375 0000/0000/0000 ABB 073/048 074/050 070 0000000 DCA TA 055/074 038/059 038 25375 0000/0000/0000 ABB 073/048 074/050 070 0000000 MRB TA 055/074 038/059 038 25375 0000/0000/0000 ABB 073/048 074/050 070 0000000 HGR TA 055/074 038/059 038 25375 0000/0000/0000 ABB 073/048 074/050 070 0000000 NHK TA 055/074 038/059 038 25375 0000/0000/0000 ABB 073/048 074/050 070 0000000 CHO TA 055/074 038/059 038 25375 0000/0000/0000 ABB 073/048 074/050 070 0000000 IAD TA 055/074 038/059 038 25375 0000/0000/0000 ABB 073/048 074/050 070 0000000 THE THIRD LINE IS IDENTICAL TO THE OLD CODED CITIES FORECAST... EXCEPT FOR THE ADDITION OF THREE...FOUR-DIGIT GROUPS...EACH SEPARATED BY A SLANT SYMBOL. EACH FOUR DIGIT GROUP REPRESENTS A SNOWFALL RANGE FOR THE FIRST...SECOND AND THIRD PERIODS RESPECTIVELY. SO FOR EXAMPLE... A CODE OF 0001/0306/0204 REPRESENTS A FORECAST OF 0-1 INCHES OF SNOW IN THE FIRST 12 HOURS...3-6 INCHES IN THE SECOND 12 HOUR PERIOD AND 2-4 INCHES IN THE THIRD 12 HOUR PERIOD. ON THE FOURTH LINE...ABB IS AN EXAMPLE OF A STRING OF THREE ONE-LETTER WEATHER FORECASTS FOR DAYS 3...4...AND 5...FOLLOWED BY THE TEMPERATURE FORECAST FOR THE LAST FIVE PERIODS. THE STRING OF ZEROES AT THE END OF THE LINE WILL EVENTUALLY BE REPLACED WITH PRECIPITATION PROBABILITIES FOR SEVEN PERIODS. THE DIGITAL ZONE FORECAST IS A PRODUCT WHICH DISPLAYS FORECASTED WEATHER PARAMETERS IN 3-HOUR INTERVALS. THIS PROVIDES A MORE DETAILED FORECAST AND ALSO MAKES IT EASIER FOR THE USER TO OBTAIN THE WEATHER PARAMETER/S/ OF CHOICE. IT IS ESSENTIALLY A DIGITAL DISPLAY OF THE ZONE FORECAST IN MUCH GREATER DETAIL AND WITH FORECAST PROJECTIONS OUT TO 5 DAYS. THE NARRATIVE VERSION OF THE ZONE FORECAST WILL STILL BE AVAILABLE. THE WMO HEADER AND NWWS HEADER WILL BE FOUS51 KLWX AND WBCRDFLWX...RESPECTIVELY. THE FOLLOWING IS AN EXAMPLE OF THE DIGITAL ZONE FORECAST... FOUS51 KLWX 101600 RDFLWX DIGITAL ZONE FORECAST NATIONAL WEATHER SERVICE BALTIMORE/WASHINGTON 1236 PM EDT MON APR 10 2000 MDZ002-WVZ048>049-090300- ALLEGANY MD-GRANT-MINERAL 1236 PM EDT MON APR 10 2000 TUE 04/11/00 WED 04/12/00 EDT 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 POP 12HR 0 0 0 10 20 QPF 12HR 0 0 0 0 MAX QPF 0 0 0 0 SNOW 12HR 00-00 00-00 00-00 MN/MX 49 77 54 75 53 TEMP 71 73 69 60 55 52 52 61 71 75 72 64 60 57 61 67 75 72 DEWPT 36 36 39 42 44 45 46 48 49 48 49 51 52 52 55 57 57 57 RH 28 26 33 51 66 77 80 62 46 38 44 63 75 83 81 70 54 59 WIND DIR S S S S S S S S S S S S S S S S S S WIND SPD 8 10 5 5 2 2 2 10 12 12 8 5 5 2 2 10 12 12 8 8 8 8 CLOUDS CL CL SC SC BK BK BK BK BK BK BK BK BK BK BK BK BK BK BK BK BK BK THU 04/13/00FRI 04/14/00SAT 04/15/00 EDT 09 15 21 03 09 15 21 03 09 15 21 03 09 POP 12HR 40 40 40 40 30 30 MN/MX 72 56 77 57 77 57 CLOUDS BK BK BK BK BK BK RAIN SHWRS C C C C C C TSTMS C C C C S S $$ THE NATIONAL WEATHER SERVICE IN CHARLESTON WV IS ALREADY USING THE DIGITAL ZONE FORECAST. FURTHER DETAILS ON HOW TO INTERPRET THIS PRODUCT CAN BE FOUND ON THEIR INTERNET WEB SITE AT /LOWER CASE/ WWW.NWS.NOAA.GOV/ER/RLX/PRODEX/RDFEXPLANATION.HTML/. IF YOU HAVE QUESTIONS OR COMMENTS ABOUT THESE PRODUCTS...PLEASE CALL 703-260-0107 FOR BARBARA WATSON...EXT 223 OR JAMES TRAVERS...EXT 222. THIS NOTICE AND OTHER SERVICE CHANGE NOTICES ARE ON THE INTERNET AT /ALL LOWER CASE/ WWW.NWS.NOAA.GOV/OM/NOTIF.HTM END ---------- End Forwarded Message ----------
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