20000808: 8-14 day outlook-ADMIN NOTICE NOUS41 KWBC (fwd)

• To: nws-changes@xxxxxxxxxxxxxxxx
• Subject: 20000808: 8-14 day outlook-ADMIN NOTICE NOUS41 KWBC (fwd)
• From: Linda Miller <lmiller@xxxxxxxxxxxxxxxx>
• Date: Tue, 08 Aug 2000 12:53:38 -0600

924
NOUS41 KWBC 081756
PNSWSH

PUBLIC INFO STATEMENT...SERVICE CHANGE NOTICE 00-72
NATIONAL WEATHER SERVICE HEADQUARTERS WASHINGTON DC
200 PM EDT TUE AUG 8 2000

TO:       NATIONAL WEATHER SERVICE /NWS/ EMPLOYEES...NOAAPORT
          SUBSCRIBERS...FAMILY OF SERVICES SUBSCRIBERS...NOAA
          WEATHER WIRE SERVICE SUBSCRIBERS...AND OTHER NWS
          CUSTOMERS

FROM:     ROBERT E. LIVEZEY
          CHIEF...CLIMATE SERVICES DIVISION

SUBJECT:  DAILY ISSUANCE OF NATIONAL 8- TO 14-DAY OUTLOOK
          ISSUED BY THE CLIMATE PREDICTION CENTER...EFFECTIVE
          MONDAY OCTOBER 2 2000

ON MONDAY OCTOBER 2 2000...THE CLIMATE PREDICTION CENTER /CPC/
WILL BEGIN DAILY ISSUANCE OF THE NATIONAL 8- TO 14-DAY OUTLOOK.
THE ISSUANCE TIME OF DAY WILL BE AROUND 4:00 PM EASTERN LOCAL
TIME.

THE OUTLOOK WILL BE EXPRESSED IN A 3-CATEGORY...PROBABILISTIC
FORMAT .  I.E... THE TEMPERATURE AND PRECIPITATION
OUTLOOKS WILL BE EXPRESSED AS PROBABILITIES THAT THE AVERAGE
TEMPERATURE OR TOTAL PRECIPITATION FOR THE PERIOD WILL FALL INTO
THE MOST LIKELY OF THREE CLASSES: ABOVE... BELOW...OR NEAR
NORMAL.  THE CLASSES ARE DEFINED AS CLIMATOLOGICALLY EQUALLY
LIKELY:  THE TOP 10 CASES OF A THIRTY YEAR (1961-1990) RECORD
DEFINE THE ABOVE CATEGORY (A)...THE MIDDLE 10 CASES DEFINE THE
NORMAL CATEGORY (N)...AND THE BOTTOM 10 CASES DEFINING THE BELOW
CATEGORY (B) AT EACH LOCATION.

THE PROBABILITIES FOR THE MOST LIKELY CLASS WILL BE GIVEN IN
SOLID CONTOUR LINES. CENTERS OF MAXIMUM PROBABILITY WILL BE
LABELED WITH THE LETTERS A...N... OR B TO DENOTE THE MOST LIKELY
CLASS.  FOR EXAMPLE: IF THE PROBABILITY FOR THE ABOVE AVERAGE
TEMPERATURE CLASS EXCEEDS 40 PERCENT FOR A GIVEN AREA AND IS THE
MOST LIKELY CLASS...THEN THE AREA WILL BE ENCIRCLED BY A
PROBABILITY CONTOUR OF 40 PERCENT ON THE TEMPERATURE OUTLOOK
CHART AND BE LABELED WITH THE LETTER A.

THE TEMPERATURE CHART WILL HAVE DASHED ISOTHERMS OF
THE CLIMATOLOGICAL AVERAGE NORMAL TEMPERATURES FOR THE PERIOD.
THE PRECIPITATION CHART WILL HAVE DASHED ISOYHETS OF
CLIMATOLOGICAL NORMAL TOTAL PRECIPITATION FOR THE PERIOD.

THE CHARTS ARE AS FOLLOWS:

WMO HEADING    AWIPS ID  CHART TITLE

PETT00 KWNC    RBG98E    8- TO 14-DAY PRECIPITATION PROBABILITY
PTTU98 KWNC    RBG98T    8- TO 14-DAY TEMPERATURE PROBABILITY
PHTT50 KWNC    RBG98H    8- TO 14-DAY MEAN 500 MB HEIGHTS
PHTT51 KWNC    RBG98C    8- TO 14-DAY MEAN 500 MB HEIGHT ANOMALY

THE CHARTS WILL ALSO BE AVAILABLE ON THE INTERNET AT CPC/S WEB
SITE AT INTERNET SITE - HTTP://WWW.CPC.NCEP.NOAA.GOV - USE LOWER
CASE.

THE PROGNOSTIC DISCUSSION (NMCPMDMRD  FXUS06 KWBC...ISSUED MONDAY
THROUGH FRIDAY AROUND 400 EASTERN LOCAL TIME...WILL BE EXPANDED
TO INCLUDE TECHNICAL ANALYSIS OF THE 8- TO 14-DAY OUTLOOK. THIS
WILL BE IN ADDITION TO TECHNICAL ANALYSIS OF THE 6- TO 10-DAY
OUTLOOK.

FOR FURTHER INFORMATION...CONTACT

NOAA/NWS
CLIMATE PREDICTION CENTER - W/NP51
5200 AUTH RD.
CAMP SPRINGS MD 20746-4304

OR E-MAIL CPC THROUGH THEIR WEB SITE.

THIS AND OTHER NOTIFICATIONS ARE ON THE INTERNET AT:
HTTP://WWW.NWS.NOAA.GOV/IM/NOTIF.HTM   /USE LOWER CASE/

END


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