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Public Information Statement

NOUS41 KWBC 091250
Public Information Statement
National Weather Service Headquarters Washington DC
850 AM EDT Tue Aug 9 2011
To:      Subscribers:
         -Family of Services
         -NOAA Weather Wire Service
         -Emergency Managers Weather Information Network
         Other NWS Partners and NWS Employees
From:    Therese Z. Pierce
         Marine and Coastal Services Branch Chief
Subject: Soliciting comments for Experimental Probabilistic
         Tropical Cyclone Inundation Guidance Products through
         November 30, 2011
Effective September 15, 2011 and continuing through November 
30, 2011, the NWS is seeking user feedback on Experimental 
Probabilistic Tropical Cyclone Inundation Guidance Products.
The Experimental Tropical Cyclone Inundation Guidance products 
consist of two suites of probabilities for the Gulf of Mexico 
and Atlantic coastal area:
1. Probabilities, in percent, of inundation exceeding 0 through
   20 feet above ground level, at 1 foot intervals, e.g., the
   probabilities in percent of inundation exceeding 0 feet, 
   1 feet, 2 feet, 3 feet ... 20 feet.
2. Probabilities of inundation heights, above ground level,
   being exceeded. The suite of products range from 10 to 
   90 percent at 10 percent intervals.
The probabilistic inundation products do not account for tide, 
waves and fresh water, i.e., precipitation runoff and river 
inflow. The products are based upon an ensemble of Sea, Lake, 
and Overland Surge from Hurricanes (SLOSH) model runs using
the National Hurricane Center(NHC)official advisory. These
products account for track, size, and intensity errors based
on historical errors.
The probabilistic inundation products will only be generated 
when hurricane watches and/or warnings are in effect for the 
Atlantic and Gulf Coasts of the continental United States.
When produced, graphical versions of the products will be 
posted online at:
ESRI shape files and GRIB2 files will be also be available 
for download from the above Website.
Users are encouraged to provide feedback on these experimental 
products by using the brief survey and comment form online at:
Planning is underway to provide the Probabilistic Tropical 
Cyclone Inundation Guidance Products in GRIB2 format via the 
NWS Telecommunication Gateway in the future.
If you have questions regarding this notice, please contact:
  John Kuhn
  National Weather Service
  Marine and Coastal Services Branch
  Silver Spring Maryland 20910
  301-713-1677 X121
National Public Information Statements are online at: