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PUBLIC INFORMATION STATEMENT
National Weather Service Wilmington NC
928 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 web page:
https://www.weather.gov/hti

The mosaics are also available through the National Digital Forecast
Database and on web pages hosted by the WFOs affected by the
tropical cyclone. These web pages 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:

  Steven Pfaff
  Meteorologist in Charge
  National Weather Service Office
  Wilmington, NC 28405
  Steven.Pfaff@noaa.gov

National Public Information Statements are online at:
https://www.weather.gov/notification/

$$