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PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE NEWPORT/MOREHEAD CITY NC
931 AM EDT THU APR 25 2024
SERVICE CHANGE NOTICE
NATIONAL WEATHER SERVICE NEWPORT/MOREHEAD CITY NC
930 AM EDT THU APR 25 2024
TO: SUBSCRIBERS:
-NOAA WEATHER WIRE SERVICE
-EMERGENCY MANAGERS WEATHER INFORMATION NETWORK
-NOAA PORT
OTHER NWS PARTNERS AND NWS EMPLOYEES
FROM: GREG SCHOOR, CHIEF
MARINE, TROPICAL AND TSUNAMI SERVICES BRANCH
SUBJECT: HURRICANE THREATS AND IMPACTS (HTI) MOSAIC TESTING ON
APRIL 11, 2024 (BACKUP DATE: APRIL 25, 2024)
THE NATIONAL WEATHER SERVICE (NWS) WEATHER FORECAST OFFICES(WFOS) IN
HONOLULU, SAN DIEGO, AND LOS ANGELES ALONG WITH MOST WFOS IN THE NWS
SOUTHERN AND EASTERN REGION WILL COMMENCE WITH HURRICANE THREATS AND
IMPACTS (HTI) THREAT GRID MOSAIC TESTING ON THURSDAY, APRIL 11.
APRIL 25 HAS BEEN DESIGNATED AS THE BACKUP TEST DATE IN THE EVENT
THAT TESTING CANNOT BE CONDUCTED ON APRIL 11.
TESTING WILL BEGIN AT APPROXIMATELY 1500 UTC. TEST ACTIVITIES WILL
TAKE APPROXIMATELY 1 HOUR; HOWEVER, NWS DISSEMINATION SYSTEMS MAY
TAKE UP TO AN HOUR AND A HALF TO PURGE ALL TEST DATA. ALL TEST DATA
IS EXPECTED TO BE CLEARED BY 1730 UTC.
FOR THE TEST, HTI GRIDS WILL BE CREATED FOR HURRICANE WIND THREAT,
STORM SURGE THREAT, FLOODING RAIN THREAT, AND TORNADO THREAT AT EACH
PARTICIPATING WFO. THOSE GRIDS ARE STITCHED TOGETHER INTO STORM-
SCALE HTI GRAPHICS. THE HTI MOSAIC GRAPHICS ARE AVAILABLE IN KEYHOLE
MARKUP LANGUAGE (KML) FORMAT ON THE FOLLOWING WEBPAGE:
HTTPS://WWW.WEATHER.GOV/HTI
THE MOSAICS ARE ALSO AVAILABLE THROUGH THE NATIONAL DIGITAL FORECAST
DATABASE AND ON WEB PAGES HOSTED BY THE WEATHER FORECAST OFFICES
(WFOS) AFFECTED BY THE TROPICAL CYCLONE. THESE WEBPAGES USE THE
FOLLWOING URL FORMAT, WHERE "WFO" SHOULD BE REPLACED WITH THE 3
DIGIT IDENTIFIER FOR THE WFO OF INTEREST:
NWS EASTERN REGION WFOS:
HTTPS://WWW.WEATHER.GOV/WFO/TROPICAL#HTI
NWS SOUTHERN AND WESTERN REGION WFOS:
HTTPS://WWW.WEATHER.GOV/SRH/TROPICAL?OFFICE=WFO#HTI
WFO HONOLULU:
HTTPS://WWW.WEATHER.GOV/HFO/HTI
MORE DETAILS ON HTI CAN BE FOUND IN THE PRODUCT DESCRIPTION
DOCUMENT: HTTPS://WWW.WEATHER.GOV/MEDIA/SRH/TROPICL/PDD_HTI.PDF
PERIODIC SOFTWARE AND HARDWARE TESTING IN PREPARATION FOR TROPICAL
CYCLONE EVENTS WILL CONTINUE DURING THE REMAINDER OF 2024.
FOR MORE INFORMATION PLEASE CONTACT:
RYAN ELLIS
SCIENCE AND OPERATIONS OFFICER
NATIONAL WEATHER SERVICE OFFICE
NEWPORT/MOREHEAD CITY, NC 28570
RYAN.ELLIS@NOAA.GOV
NATIONAL PUBLIC INFORMATION STATEMENTS ARE ONLINE AT:
HTTPS://WWW.WEATHER.GOV/NOTIFICATION/
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