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NOUS41 KWBC 171400
PNSWSH
SERVICE CHANGE NOTICE 26-67
NATIONAL WEATHER SERVICE HEADQUARTERS SILVER SPRING MD
1000 AM EDT FRI JUL 17 2026
TO: SUBSCRIBERS:
-NOAA WEATHER WIRE SERVICE
-EMERGENCY MANAGERS WEATHER INFORMATION NETWORK
-NOAAPORT
OTHER NWS PARTNERS, USERS AND EMPLOYEES
FROM: DAVID MICHAUD, DIRECTOR
NWS CENTRAL OPERATIONS
SUBJECT: MIGRATION OF NEXRAD LEVEL 2 RADAR DATA DISSEMINATION
FROM NOMADS.NCEP.NOAA.GOV TO TGFTP.NWS.NOAA.GOV EFFECTIVE:
SEPTEMBER 15, 2026
EFFECTIVE SEPTEMBER 15, 2026, AT 1200 COORDINATED UNIVERSAL TIME
(UTC), THE NATIONAL WEATHER SERVICE (NWS) WILL DISCONTINUE THE
URL OF NEXRAD LEVEL 2 RADAR DATA FROM THE NOAA NATIONAL CENTERS
FOR ENVIRONMENTAL PREDICTION (NCEP) NOMADS SERVER.
DISCONTINUED NOMADS HTTPS LOCATION:
HTTPS://NOMADS.NCEP.NOAA.GOV/PUB/DATA/NCCF/RADAR/NEXRAD_LEVEL2/
IDENTICAL NEXRAD LEVEL 2 DATA WITH NO CHANGES IN FORMAT,
FREQUENCY, FILENAME, OR DATA STRUCTURE IS CURRENTLY AVAILABLE
VIA TGFTP. USERS CURRENTLY ACCESSING THE DATA AT THE NOMADS
LOCATION SHOULD TRANSITION TO THE NEW TGFTP DATA URL PRIOR TO
SEPT 15, 2026:
NEW HTTPS LOCATION ON TGFTP:
HTTPS://TGFTP.NWS.NOAA.GOV/DATA/RADAR/NEXRAD_LEVEL2/
NEW FTP LOCATION ON TGFTP:
FTP://TGFTP.NWS.NOAA.GOV/DATA/RADAR/NEXRAD_LEVEL2/
THIS CHANGE DOES NOT AFFECT NEXRAD LEVEL 3 RADAR DATA.
IN THE EVENT THAT THE IMPLEMENTATION DATE IS DECLARED A CRITICAL
WEATHER DAY (CWD), AN ENHANCED CAUTION EVENT (ECE), OR OTHER
SIGNIFICANT WEATHER IS OCCURRING OR IS ANTICIPATED TO OCCUR,
IMPLEMENTATION OF THIS CHANGE WILL TAKE PLACE AT 1200 UTC ON THE
NEXT WEEKDAY NOT DECLARED A CWD AND WHEN NO SIGNIFICANT WEATHER
IS OCCURRING.
PLEASE SUBMIT COMMENTS, QUESTIONS, OR REQUESTS PERTAINING TO
THIS CHANGE TO:
HOLLY UHLENHAKE
NWS CENTRAL OPERATIONS IDP DATAFLOW TEAM LEAD
HOLLY.UHLENHAKE@NOAA.GOV
MARGARET CURTIS
NWS CENTRAL OPERATIONS HPC DATAFLOW TEAM LEAD
NCEP.PMB.DATAFLOW@NOAA.GOV
NATIONAL SERVICE CHANGE NOTICES ARE ONLINE AT:
HTTPS://WWW.WEATHER.GOV/NOTIFICATION/
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