NOTE: The nws-changes mailing list is no longer active. The list archives are made available for historical reasons.
-------- Original Message --------799 NOUS41 KWBC 241954
PNSWSH
SERVICE CHANGE NOTICE 08-45
NATIONAL WEATHER SERVICE HEADQUARTERS WASHINGTON DC
400 PM EDT TUE JUN 24 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: FORMAT CHANGE TO THE LATITUDE/LONGITUDE
INFORMATION IN STORM PREDICTION CENTER MESOSCALE
DISCUSSIONS EFFECTIVE OCT 21 2008
EFFECTIVE TUESDAY OCT 21 2008 AT 0800 CENTRAL DAYLIGHT TIME
/CDT/...1300 COORDINATED UNIVERSAL TIME /UTC/...THE NWS STORM
PREDICTION CENTER /SPC/ WILL CHANGE THE LATITUDE/LONGITUDE
INFORMATION IN THE MESOSCALE DISCUSSIONS /AWIPS ID: SWOMCD/...
FOR CONUS USE ONLY.
THIS CHANGE STANDARDIZES THE FORMAT FOR LATITUDE LONGITUDE DATA WITHIN SPC PRODUCTS. AN ADDITIONAL EFFORT TO STANDARDIZE THE LATITUDE LONGITUDE FORMAT WITHIN THE NWS IS UNDER CONSIDERATION.
THE FORMAT CHANGE CONSISTS OF TWO ITEMS:1. THE PHRASE LAT...LON WILL BE LISTED IN FRONT OF THE LATITUDE LONGITUDE POINTS CONSISTENT WITH OTHER SPC PRODUCTS CONTAINING LATITUDE LONGITUDE DATA.
2. THE LIST OF LATITUDE LONGITUDE POINTS WILL ALWAYS DESCRIBE A CLOSED AREA...SO THE LAST POINT LISTED WILL BE THE SAME AS THE FIRST POINT LISTED.
AN EXAMPLE OF THE CURRENT SWOMCD PRODUCT FORMAT IS SHOWN BELOW: EXAMPLE 1: ACUS11 KWNS 231710 SWOMCD SPC MCD 231710 FLZ000-231815- MESOSCALE DISCUSSION 0984 NWS STORM PREDICTION CENTER NORMAN OK 1210 PM CDT FRI MAY 23 2008 NARRATIVE TEXT ..SPC.. 05/23/2008 ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... ATTN...WFO...MFL...MLB...TBW...JAX... 26058012 25718094 26818213 27738262 28948261 28998209 28748103 26898001 26557996 && END OF EXAMPLE 1AN EXAMPLE OF THE NEW SWOMCD PRODUCT FORMAT AFTER 1300 UTC ON OCTOBER 21 2008 IS SHOWN BELOW:
EXAMPLE 2:
ACUS11 KWNS 221710
SWOMCD
SPC MCD 221710
FLZ000-221815-
MESOSCALE DISCUSSION 0984
NWS STORM PREDICTION CENTER NORMAN OK
1210 PM CDT WED OCT 22 2008
NARRATIVE TEXT
..SPC.. 10/22/2008
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...MFL...MLB...TBW...JAX...
LAT...LON 26058012 25718094 26818213 27738262 28948261
28998209 28748103 26898001 26557996 26058012
&&
END OF EXAMPLE 2
LATITUDE LONGITUDE VALUES IN THE PRODUCT ARE IN DECIMAL DEGREES.
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. FOR EXAMPLE...34760394 IS
DECODED AS 34.76N AND 103.94W.
TO FURTHER ILLUSTRATE DECODING LATITUDE LONGITUDE POINTS...THE AREA FROM EXAMPLE 2 HAS THE FOLLOWING LATITUDE LONGITUDE POINTS:
LAT...LON 26058012 25718094 26818213 27738262 28948261
28998209 28748103 26898001 26557996 26058012
WHICH CAN BE DECODED AS:
26.05N 80.12W
25.71N 80.94W
26.81N 82.13W
27.73N 82.62W
28.94N 82.61W
28.99N 82.09W
28.74N 81.03W
26.89N 80.01W
26.55N 79.96W
26.05N 80.12W
NOTE...THE PHRASE LAT...LON PRECEDES THE POINTS AND THE LAST
POINT IS THE SAME AS THE FIRST POINT AND INDICATES THE AREA IS A
CLOSED AREA.
IF YOU HAVE ANY 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 SUITE 2500 SUITE 2500 NORMAN OK 73072 NORMAN OK 73072 405-325-2462 703-325-2466 RUSSELL.SCHNEIDER@xxxxxxxx GREGORY.GROSSHANS@xxxxxxxxTHIS AND OTHER NWS SERVICE CHANGE NOTICES ARE AVAILABLE ONLINE AT /USE LOWER CASE LETTERS/:
HTTP://WWW.NWS.NOAA.GOV/OM/NOTIF.HTM $$ NNNN
nws-changes archives: