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000
NOUS41 KWBC 221400
PNSWSH

Public Information Statement 24-31
National Weather Service Headquarters Silver Spring MD
1000 AM EDT Mon Apr 22 2024

To: Subscribers:
 -NOAA Weather Wire Service
 -Emergency Managers Weather Information Network
 -NOAAPort
 Other NWS Partners, Users and Employees

From: Stephen W. Bieda III, Ph.D, Chief
 Severe, Fire, Public, and Winter Weather Services Branch

Subject: Soliciting Comments on Experimental HeatRisk Grids in the
 National Digital Forecast Database (NDFD) and WPC HeatRisk
CONUS
 Viewer through September 30, 2024

Effective on or about April 22, 2024 and continuing through September
30,
2024, the NWS is seeking user feedback on experimental HeatRisk grids
in
the National Digital Forecast Database (NDFD) and the WPC HeatRisk
contiguous U.S. (CONUS) Viewer.

The experimental NWS HeatRisk is a consistent, science-based approach
that
leverages generalized heat-health science with local climatology and
heat-
health statistics to produce a daily value of expected heat risk for
each
24-hour period within any upcoming 7-day forecast period. This
expected
heat risk is not only based on afternoon heat, but also on the
effects of
overnight temperature in terms of how it either mitigates or augments
the
effects of daytime heat.

Real-time access to the experimental HeatRisk product can be obtained
through the NDFD webpage, available for the CONUS in May 2024:

https://digital.weather.gov/.

An interactive viewer of the experimental HeatRisk is also available
from
the following URL:

https://www.wpc.ncep.noaa.gov/heatrisk/.

The experimental HeatRisk risk-based categorization framework is a
straightforward numeric (0-4) color-based (green/yellow/
orange/red/magenta) system. This type of messaging framework provides
the
public and NWS partners with an uncomplicated manner of risk-based
heat-
related categorizations to aid in decision-making.

Please see the NWS Product Description Document (PDD) for more
details:

https://nsdesk.servicenowservices.com/api/g_noa/nwspc/res2/6a458c0c1b
e9061
4135feb9ce54bcb5c

Users are encouraged to provide feedback on this experimental service
by
using the brief survey and comment form available online at:

https://www.surveymonkey.com/r/ExpNWSHeatRisk_2024

Questions related to the experimental HeatRisk can be directed to:

Kimberly McMahon
NOAA/NWS/Analyze, Forecast and Support Office
Silver Spring, MD
Email: public.program@noaa.gov

National Public Information Statements are online at:

https://www.weather.gov/notification/