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NOUS41 KWBC 041600 AAC
PNSWSH

Public Information Statement 22-42 Updated
National Weather Service Headquarters Silver Spring MD
1200 PM EDT Thu Apr 4 2024

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

From: Dr. Thomas Graziano
 Director, Office of Water Prediction

Subject: Updated: Soliciting Comments on Changing the Issuance Cycle
of
 the Experimental Flood Hazard Outlook (FHO) Product through
 June 30, 2024

Updated to change the issuance cycle of the Experimental Flood Hazard
Outlook (FHO) Product from once to twice daily.

The NWS is soliciting comments and feedback on the Experimental Flood
Hazard Outlook (FHO) through June 30, 2024. The FHO is intended to
provide
a coordinated inland hydrologic flood graphic for use in regional and
national Impact-based Decision Support Services (IDSS) briefings and
support broad messaging of flood threat to NWS stakeholders and
Federal
water partners. These partners include the Federal Emergency
Management
Agency (FEMA), the United States Army Corps of Engineers (USACE), and
the
United States Geological Survey (USGS). The intent of this product is
to
replace the current Significant River Flood Outlook product when the
FHO
becomes operational.

This experimental product combines a depiction of current flood
conditions
based on the latest river level observations with an assessment of
flood
risk leveraging various sources of NWS water resources forecast
information. These sources of information include National Water
Model
guidance, official River Forecast Center (RFC) deterministic and
probabilistic forecasts, and Weather Prediction Center (WPC)
excessive
rainfall outlooks.

This experimental product is issued daily, typically around 2100
Coordinated Universal Time (UTC), and will be increased to twice
daily on
or about May 7, 2024. The added morning issuance will occur typically
around 1200 UTC during Daylight Saving Time / 1300 UTC during
Standard
Time. With the change to routine twice-daily issuance, there will no
longer be a separate 1130 UTC issuance during tropical events.

The graphical depiction of the flood threat with key messages is made
available as an interactive GIS service and a static graphic linked
below
the interactive map on the National Water Prediction Service (NWPS):

https://water.noaa.gov

More information about the Experimental FHO can be found in the
Product
Description Document linked below:

https://nsdesk.servicenowservices.com/api/g_noa/nwspc/res2/12e042771b
fbbd5
0b13387bae54bcb85

Note that the link to the Product Description Document above has been
changed with this update to add the additional morning issuance time.

No other changes have been made to the FHO from the version provided
during the previous comment period.

Please provide feedback on the Experimental FHO as a replacement for
the
current Significant River Flood Outlook, at:

https://www.surveymonkey.com/r/ExtExp_FHO_2023_24

If you have additional questions or comments, please contact:

Russ Barton
National Water Center
Tuscaloosa, AL
Email: russ.barton@noaa.gov

National Public Information Statements are online at:

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