Public Information Statement Issued by NWS Newport/Morehead, NC
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Public Information Statement
National Weather Service Newport/Morehead City NC
226 PM EDT Wed Apr 7 2021
To: Subscribers:
-NOAA Weather Wire Service
-Emergency Managers Weather Information Network
-NOAAPort
Other NWS Partners and NWS Employees
From: Allison Allen
Chief, Marine, Tropical and Tsunami Services Branch
Subject: Hurricane Threats and Impacts (HTI) Mosaic Testing on
April 8, 2021
The NWS Weather Forecast Office (WFO) in Honolulu and WFOs in
the NWS Southern Region and in the NWS Eastern Region will
commence with Hurricane Threats and Impacts (HTI) threat grid
mosaic testing on Thursday, April 8. Thursday, April 22 has
been designated as the backup test date in the event that
testing cannot be conducted on April 8.
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,
Hurricane Storm Surge Threat, Hurricane Flooding Rain Threat, and
Hurricane Tornado Threat. These grids are sent to the National
Digital Forecast Database (NDFD) and can be seen on the NDFD web
viewer at:
https://digital.weather.gov
The Product Description Document for these threat grids can be
found here:
https://www.weather.gov/media/srh/tropical/PDD_HTI.pdf
HTI grids are created by WFOs for their county warning area and
mosaicked together to form a more geographically consistent
depiction of the threat posed by hurricane hazards. The HTI
mosaics can be found in kml format at:
https://weather.gov/hti
When populated HTI grids are posted, they also can be found on the
WFO Tropical Web Portal page linked below under the "Threats and
Impacts" tab:
https://www.weather.gov/srh/tropical
Periodic software and hardware testing in preparation for tropical
cyclone events will continue during the remainder of 2021.
For more information, please contact:
David Glenn
Acting Meteorologist in Charge
National Weather Service Office
Newport, NC 28570
david.glenn@noaa.gov
252-223-5122
National Service Change Notices are online at:
https://www.weather.gov/notification/
$$