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PUBLIC INFORMATION STATEMENT...SERVICE CHANGE NOTICE 01-70
NATIONAL WEATHER SERVICE HEADQUARTERS WASHINGTON DC
1045 PM EST WED NOV 28 2001
TO: FAMILY OF SERVICES /FOS/ SUBSCRIBERS...NOAA WEATHER
WIRE SERVICE /NWWS/ CUSTOMERS...OTHER NATIONAL WEATHER
SERVICE /NWS/ CUSTOMERS...NWS EMPLOYEES
FROM: JAMES E. LEE
CHIEF...FIRE AND PUBLIC WEATHER SERVICES BRANCH
SUBJECT: NEW STORM PREDICTION CENTER DAY THREE SEVERE WEATHER OUTLOOKS
EFFECTIVE NOVEMBER 7 2001...THE STORM PREDICTION CENTER BEGAN ISSUING
ROUTINE DAY THREE PROBABILISTIC AND CATEGORICAL SEVERE WEATHER OUTLOOK
GRAPHICS AND AN ASSOCIATED DISCUSSION /SEE TABLE 1/. THESE PRODUCTS
PROVIDE FORECASTS OF SEVERE CONVECTIVE WEATHER THREATS ACROSS THE
CONTIGUOUS 48 STATES...48 TO 72 HOURS IN ADVANCE. THE PROBABILITIES
ARE EXPRESSED AS THE CHANCE OF A SEVERE WEATHER EVENT OCCURRING WITHIN
25 STATUTE MILES OF ANY LOCATION WITHIN A GIVEN AREA.
THE DAY THREE OUTLOOK CONSISTS OF A GRAPHIC PROVIDING THE COMBINED
PROBABILITY OF TORNADO AND SEVERE CRITERIA HAIL AND WIND THREATS...
A SECOND GRAPHIC WITH THE CATEGORICAL OUTLOOK /SLIGHT...MODERATE...
OR HIGH/ ... AND A PLAIN LANGUAGE DISCUSSION OF THE FORECAST. THE DAY
THREE OUTLOOK IS ISSUED AT 1100 UTC.
IN ORDER TO RECEIVE THESE NEW REDBOOK GRAPHIC PRODUCTS /LISTED IN
TABLE ONE/...ALL CUSTOMERS MUST IMPLEMENT THE NEW WMO HEADERS IN
THEIR DISSEMINATION SYSTEM/S/.
TABLE 1. WMO HEADERS FOR THE NEW DAY THREE SEVERE WEATHER OUTLOOK.
DAY THREE PRODUCT AWIPS ID WMO HEADER
PROBABILISTIC OUTLOOK GRAPHIC RGB0A3 PZNK00 KWNS
CATEGORICAL OUTLOOK GRAPHIC RBG990 PGWK48 KWNS
OUTLOOK DISCUSSION SWODY3 ACUS03 KWNS
FOR CUSTOMERS WITHOUT REDBOOK GRAPHIC DISPLAY CAPABILITIES...
THESE PRODUCTS ARE AVAILABLE ON THE STORM PREDICTION CENTER
INTERNET SITE /USE LOWER CASE/
HTTP://WWW.SPC.NOAA.GOV
FOR MORE INFORMATION AND EXAMPLES OF THE PROBABILITY OUTLOOKS...
SEE THE STORM PREDICTION CENTER INTERNET SITE /USE LOWER CASE/
HTTP://WWW.SPC.NOAA.GOV/PRODUCTS/OUTLOOK/PROBINFO.HTML
IF YOU HAVE ANY QUESTIONS OR COMMENTS... PLEASE CONTACT EITHER OF
THE FOLLOWING PERSONS:
DR. JOSEPH SCHAEFER DOUGLAS YOUNG
STORM PREDICTION CENTER SEVERE STORMS PROGRAM
NORMAN OK SILVER SPRING MD
405-579-0701 301-713-1970 X113
JOSEPH.SCHAEFER@xxxxxxxx DOUGLAS.YOUNG@xxxxxxxx
...NOTE TO INTERNET USERS...
THIS AND ALL OTHER NWS SERVICE CHANGE NOTICES ARE POSTED ON /USE
LOWER CASE/
HTTP://WWW.NWS.NOAA.GOV/OM/NOTIF.HTM
END
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