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PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
937 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:
CHRIS STRONG
WARNING COORDINATION METEOROLOGIST
NATIONAL WEATHER SERVICE OFFICE
BALTIMORE/WASHINGTON DC
CHRISTOPHER.STRONG@NOAA.GOV
NATIONAL PUBLIC INFORMATION STATEMENTS ARE ONLINE AT:
HTTPS://WWW.WEATHER.GOV/NOTIFICATION/
CJL
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