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NOUS41 KBTV 251341
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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/

$$