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NCZ001>006-018>020-VAZ007-009>020-022>024-032>035-043>047-058-059-
WVZ042>044-507-508-260145-
PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
932 AM EDT THU APR 25 2024
TO: SUBSCRIBERS:
-NOAA WEATHER WIRE SERVICE
-EMERGENCY MANAGERS WEATHER INFORMATION NETWORK
-NOAAPORT
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 25, 2024
WEATHER FORECAST OFFICES (WFOS) IN THE NATIONAL WEATHER SERVICE (NWS)
SOUTHERN AND EASTERN REGIONS WILL COMMENCE WITH HURRICANE THREATS
AND IMPACTS (HTI) THREAT GRID MOSAIC TESTING ON THURSDAY, APRIL 25.
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
FOLLOWING 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 REGION WFOS:
HTTPS://WWW.WEATHER.GOV/SRH/TROPICAL?OFFICE=WFO#HTI
MORE DETAILS ON HTI CAN BE FOUND IN THE PRODUCT DESCRIPTION
DOCUMENT: HTTPS://WWW.WEATHER.GOV/MEDIA/SRH/TROPICAL/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:
BEN GRUVER
LEAD METEOROLOGIST
NATIONAL WEATHER SERVICE OFFICE
BLACKSBURG, VA
BEN.GRUVER@NOAA.GOV
NATIONAL PUBLIC INFORMATION STATEMENTS ARE ONLINE AT:
HTTPS://WWW.WEATHER.GOV/NOTIFICATION/
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