034  
NOUS41 KBTV 251341  
PNSBTV  
NYZ026>031-034-035-087-VTZ001>011-016>021-260145-  
 
PUBLIC INFORMATION STATEMENT  
NATIONAL WEATHER SERVICE BURLINGTON VT  
941 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 1100 AM EDT/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 130 PM EDT/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:  
 
PETER BANACOS  
SCIENCE AND OPERATIONS OFFICER  
NATIONAL WEATHER SERVICE BURLINGTON, VERMONT  
PETER.BANACOS@NOAA.GOV  
 
NATIONAL PUBLIC INFORMATION STATEMENTS ARE ONLINE AT:  
HTTPS://WWW.WEATHER.GOV/NOTIFICATION/  
 

 
 
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