[nws-changes] 20110809: comments-tropical cyclone guidance prods

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,

   1feet, 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

theNational 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 theProbabilistic 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

  John.F.Kuhn@xxxxxxxx  <mailto:John.F.Kuhn@xxxxxxxx>

National Public Information Statements are online at:




Linda Miller - lmiller@xxxxxxxxxxxxxxxx
Community Services, Unidata
University Corporation for Atmospheric Research
P.O. Box 3000
Boulder, CO 80307-3000
303-497-8646 fax: 303-497-8690