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NOUS41 KWBC 251255
PNSWSH
SERVICE CHANGE NOTICE 08-08
NATIONAL WEATHER SERVICE HEADQUARTERS WASHINGTON DC
756 AM EST MON FEB 25 2008
TO: SUBSCRIBERS:
-FAMILY OF SERVICES
-NOAA WEATHER WIRE SERVICE
-EMERGENCY MANAGERS WEATHER INFORMATION NETWORK
OTHER NWS PARTNERS...USERS AND EMPLOYEES
FROM: ELI JACKS
CHIEF...FIRE AND PUBLIC WEATHER SERVICES BRANCH
SUBJECT: DISSEMINATION OF AREAL OUTLINE PRODUCT FOR STORM
PREDICTION CENTER DAY 4-8 CONVECTIVE OUTLOOK:
EFFECTIVE MARCH 25 2008
EFFECTIVE TUESDAY MARCH 25 2008 AT 0400 AM CENTRAL DAYLIGHT TIME /CDT/...0900 COORDINATED UNIVERSAL TIME /UTC/...THE NWS STORM PREDICTION CENTER /SPC/ WILL START DISSEMINATING THE DAY 4-8 CONVECTIVE OUTLOOK AREAL OUTLINE PRODUCT /AWIPS ID: PTSD48/. THIS PRODUCT IS FOR CONUS USE ONLY.
CUSTOMERS WHO WISH TO RECEIVE THIS PRODUCT SHOULD ADD THE COMMUNICATION IDENTIFIER BELOW TO THE APPROPRIATE DATABASES.
PRODUCT WMO HEADER AWIPS ID DAY 4-8 CONVECTIVE WUUS48 KWNS PTSD48 OUTLOOK AREAL OUTLINETHIS PRODUCT WILL COMPLEMENT THE OTHER SPC CONVECTIVE OUTLOOK AREAL OUTLINE PRODUCTS. THE CURRENT SUITE OF CONVECTIVE OUTLOOK PRODUCTS ISSUED BY THE SPC INCLUDING THE NEW PTSD48 PRODUCT ARE:
PRODUCT WMO HEADING AWIPS ID DAY 1 CONVECTIVE OUTLOOK ACUS01 KWNS SWODY1 DAY 1 REDBOOK GRAPHIC PGWE46 KWNS /NONE/ DAY 1 OUTLOOK AREAL OUTLINE WUUS01 KWNS PTSDY1 DAY 2 CONVECTIVE OUTLOOK ACUS02 KWNS SWODY2 DAY 2 REDBOOK GRAPHIC PGWI47 KWNS /NONE/ DAY 2 OUTLOOK AREAL OUTLINE WUUS02 KWNS PTSDY2 DAY 3 CONVECTIVE OUTLOOK ACUS03 KWNS SWODY3 DAY 3 REDBOOK GRAPHIC PGWK48 KWNS /NONE/ DAY 3 OUTLOOK AREAL OUTLINE WUUS03 KWNS PTSDY3 DAY 4-8 CONVECTIVE OUTLOOK ACUS48 KWNS SWOD48 DAY 4-8 REDBOOK GRAPHIC PGNM98 KWNS /NONE/ DAY 4-8 OUTLOOK AREAL OUTLINE WUUS48 KWNS PTSD48THE NEW DAY 4-8 OUTLOOK AREAL OUTLINE PRODUCT CONTAINS LATITUDE AND LONGITUDE POINTS DESCRIBING THE AREAS DISCUSSED IN THE DAY 4-8 CONVECTIVE OUTLOOK PRODUCT AND DEPICTED IN THE DAY 4-8 REDBOOK GRAPHIC PRODUCT.
LAT/LON VALUES IN THE PRODUCT ARE IN DECIMAL DEGREES. FOR EXAMPLE 34760394 IS 34.76N AND 103.94W. NOTE: THE LONGITUDE VALUES ARE CODED AS FOUR DIGITS...SO POINTS WEST OF 99.99W ARE CODED WITH THE HUNDREDS DIGIT REMOVED...THAT IS THE NUMBER ONE /1/ IS NOT INCLUDED. IF AN AREA IS CLOSED...THE FIRST AND LAST LAT/LON POINTS ARE THE SAME. ONLY DEFINED AREAS ARE LISTED.
IF THE POTENTIAL OR PREDICTABILITY FOR SEVERE THUNDERSTORMS IS TOO LOW FOR A GIVEN DAY...NO AREAL OUTLINE IS LISTED FOR THAT DAY. IF THE POTENTIAL OR PREDICTABILITY FOR SEVERE THUNDERSTORMS IS TOO LOW FOR THE ENTIRE 4 TO 8 DAY PERIOD...NO AREAL OUTLINE IS INCLUDED IN THE PRODUCT.
TWO EXAMPLES OF THE PTSD48 PRODUCT ARE SHOWN BELOW:
EXAMPLE 1
DAY 4-8 CONVECTIVE OUTLOOK AREAL OUTLINE
NWS STORM PREDICTION CENTER NORMAN OK
0409 AM CDT FRI JUN 29 2007
VALID TIME 021200Z - 071200Z
SEVERE WEATHER OUTLOOK POINTS DAY 4-8
... ANY SEVERE ...
D6 43738110 41628135 39388310 38558585 38499110 39439365
40109439 41409470 43099400 45318996 46248525
D7 45377505 43397287 41357249 39727395 38537638 37688426
38198516 40098507 42068280 43278023
D4-5 47448528 43528843 42169294 42639686 44470047 45540446
46920612 49600691
EXAMPLE 1 ABOVE INDICATES THE VALID TIME OF THE PRODUCT IS FROM
1200 UTC ON JULY 2 THROUGH 1200 UTC ON JULY 7. IN THIS EXAMPLE
THERE ARE 3 AREAS. THE COMBINED DAYS ARE LISTED LAST...D4-5 IN
THE EXAMPLE. DAY 8 IS NOT LISTED SINCE THE POTENTIAL OR
PREDICTABILITY FOR SEVERE THUNDERSTORMS IS TOO LOW ON DAY 8.
EXAMPLE 2 DAY 4-8 CONVECTIVE OUTLOOK AREAL OUTLINE NWS STORM PREDICTION CENTER NORMAN OK 0417 AM CST THU JAN 17 2008 VALID TIME 201200Z - 251200Z SEVERE WEATHER OUTLOOK POINTS DAY 4-8 ... ANY SEVERE ...IN EXAMPLE 2 THE POTENTIAL OR PREDICTABILITY FOR SEVERE THUNDERSTORMS IS TOO LOW FOR THE ENTIRE 4 TO 8 DAY PERIOD AND NO AREAL OUTLINES ARE INCLUDED.
TO FURTHER ILLUSTRATE DECODING THE LAT/LON POINTS...THE DAY 6 AREA FROM EXAMPLE 1 HAS THE FOLLOWING LAT/LON POINTS:
D6 43738110 41628135 39388310 38558585 38499110 39439365
40109439 41409470 43099400 45318996 46248525
WHICH CAN BE DECODED AS:
43.73N 81.10W
41.62N 81.35W
39.38N 83.10W
38.55N 85.85W
38.49N 91.10W
39.43N 93.65W
40.10N 94.39W
41.40N 94.70W
43.09N 94.00W
45.31N 89.96W
46.24N 85.25W
NOTE...THE LAST POINT IS NOT THE SAME AS THE FIRST POINT AND
INDICATES THE AREA IS NOT A CLOSED AREA AND ENDS AT THE CANADIAN
BORDER.
THE FORMAT OF THIS PRODUCT IS SIMILAR TO THE SPC CONVECTIVE OUTLOOK AREAL OUTLINE PRODUCTS:
WUUS01 KWNS PTSDY1 WUUS02 KWNS PTSDY2 WUUS03 KWNS PTSDY3THIS PRODUCT IS A REPACKAGING OF EXISTING DAY 4-8 CONVECTIVE OUTLOOK INFORMATION IN A MORE MACHINE READABLE FORMAT. ADDITIONAL INFORMATION ON SPC PRODUCTS CAN BE FOUND IN NWS INSTRUCTION 10-512 /NATIONAL SEVERE WEATHER PRODUCTS SPECIFICATION/ AT /USE LOWER CASE LETTERS/:
HTTP://WWW.NWS.NOAA.GOV/DIRECTIVES/SYM/PD01005012CURR.PDF FOR QUESTIONS...PLEASE CONTACT: DR. RUSSELL SCHNEIDER GREGORY GROSSHANS CHIEF SCIENCE SUPPORT BRANCH METEOROLOGIST STORM PREDICTION CENTER STORM PREDICTION CENTER 120 DAVID L. BOREN BLVD. 120 DAVID L. BOREN BLVD. NORMAN OK 73072 NORMAN OK 73072 RUSSELL.SCHNEIDER@xxxxxxxx GREGORY.GROSSHANS@xxxxxxxxNWS SERVICE CHANGE NOTICES ARE AVAILABLE ONLINE AT /USE LOWER CASE LETTERS/:
HTTP://WWW.NWS.NOAA.GOV/OM/NOTIF.HTM690
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