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000
NOUS42 KRAH 251327
PNSRAH
NCZ007>011-021>028-038>043-073>078-083>086-088-089-251730-

PUBLIC INFORMATION STATEMENT
National Weather Service Raleigh NC
927 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:

  Jonathan Blaes
  Meteorologist in Charge
  National Weather Service
  Raleigh, NC 27606
  Jonathan.Blaes@noaa.gov

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



$$