176  
NOUS44 KCRP 111344  
PNSCRP  
TXZ229>234-239>247-342>347-442-443-447-111730-  
 
PUBLIC INFORMATION STATEMENT  
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX  
844 AM CDT THU APR 11 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 11, 2024 AND APRIL 25, 2024  
 
THE NATIONAL WEATHER SERVICE (NWS) WEATHER FORECAST OFFICES  
(WFOS) IN HONOLULU, SAN JUAN, SAN DIEGO, AND LOS ANGELES ALONG  
WITH WFOS IN THE NWS SOUTHERN REGION WEST OF THE MISSISSIPPI RIVER  
WILL COMMENCE WITH HURRICANE THREATS AND IMPACTS (HTI) THREAT  
GRID MOSAIC TESTING ON THURSDAY, APRIL 11. A SECOND TEST THAT WILL  
INCLUDE WFOS EAST OF THE MISSISSIPPI RIVER IS PLANNED FOR 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 SOUTHERN AND WESTERN REGION (SAN DIEGO AND LOS ANGELES) 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/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:  
 
JESSICA SCHAUER  
NATIONAL TROPICAL SERVICES PROGRAM MANAGER  
MIAMI, FL  
TROPICAL.PROGRAM@NOAA.GOV  
 
NATIONAL PUBLIC INFORMATION STATEMENTS ARE ONLINE AT:  
HTTPS://WWW.WEATHER.GOV/NOTIFICATION/  
 

 
 
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