Public Information Statement

NOUS41 KWBC 201513
PNSWSH		

PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE HEADQUARTERS WASHINGTON DC
1015 AM EST WED JAN 20 2010

TO:      SUBSCRIBERS:
         -FAMILY OF SERVICES
         -NOAA WEATHER WIRE SERVICE
         -EMERGENCY MANAGERS WEATHER INFORMATION NETWORK
         -NOAAPORT 
         OTHER NWS PARTNERS...AND NWS EMPLOYEES

FROM:    THERESE Z. PIERCE
         MARINE AND COASTAL SERVICES BRANCH CHIEF 

SUBJECT: SOLICITING COMMENTS FOR EXPERIMENTAL TROPICAL CYCLONE
         PROBABILISTIC STORM SURGE EXCEEDANCE PRODUCTS THROUGH 
         NOVEMBER 30 2010

EFFECTIVE JUNE 1 AND CONTINUING THROUGH NOVEMBER 30 2010...THE 
NWS IS SEEKING USER FEEDBACK ON EXPERIMENTAL TROPICAL CYCLONE 
PROBABILISTIC STORM SURGE EXCEEDANCE PRODUCTS. THE EXPERIMENTAL 
PRODUCTS WILL BE GENERATED WHEN A HURRICANE WATCH OR WARNING IS 
IN EFFECT FOR ANY PORTION OF THE GULF OR ATLANTIC COASTS OF THE 
CONTINENTAL UNITED STATES.

THE 10 THROUGH 90 PERCENT EXCEEDANCE PRODUCT SUITE WAS PROVIDED 
AT 10 PERCENT INCREMENTS ON AN EXPERIMENTAL BASIS DURING 2009.  
IT WILL REMAIN EXPERIMENTAL FOR 2010.

THE EXCEEDANCE HEIGHT IS THE STORM SURGE HEIGHT IN FEET...ABOVE 
NORMAL TIDE LEVELS...SUCH THAT THERE IS AN N...WHERE N EQUALS 10 
THROUGH 90...PERCENT CHANCE OF EXCEEDING IT.

THE PRODUCTS WILL BE POSTED ONLINE AT /USE LOWERCASE/:

HTTP://WWW.WEATHER.GOV/MDL/PSURGE

A COMPREHENSIVE DESCRIPTION AND STATIC EXAMPLES OF THE 
EXPERIMENTAL EXCEEDANCE PRODUCTS ARE POSTED AT THE ABOVE 
WEBSITE. GRIB2 AND ESRI SHAPE FILES WILL ALSO BE AVAILABLE AT 
THIS WEBSITE BY CLICKING ON THE DOWNLOAD TAB.

GRIB2 FILES WILL BE TRANSMITTED ON NOAAPORT WITH THE FOLLOWING 
WMO HEADERS:

LGXP10 KNHC   10 PERCENT CHANCE OF EXCEEDANCE
LGXP20 KNHC   20 PERCENT CHANCE OF EXCEEDANCE 
LGXP30 KNHC   30 PERCENT CHANCE OF EXCEEDANCE
LGXP40 KNHC   40 PERCENT CHANCE OF EXCEEDANCE
LGXP50 KNHC   50 PERCENT CHANCE OF EXCEEDANCE   
LGXP60 KNHC   60 PERCENT CHANCE OF EXCEEDANCE
LGXP70 KNHC   70 PERCENT CHANCE OF EXCEEDANCE
LGXP80 KNHC   80 PERCENT CHANCE OF EXCEEDANCE
LGXP90 KNHC   90 PERCENT CHANCE OF EXCEEDANCE

THE PRODUCTS WILL ALSO BE AVAILABLE IN GRIB2 ON THE NATIONAL 
DIGITAL GUIDANCE DATABASE /NDGD/ AT /USE LOWERCASE EXCEPT 
SL...ST...DF...DC...GT...AR/:

HTTP://WEATHER.NOAA.GOV/PUB/SL.US008001/ST.EXPR/DF.GR2/DC.NDGD/GT.SLOSH/AR.CONUS

WITH FILE NAMES OF DS.SURGEEXCDNN.BIN WHERE NN IS THE EXCEEDANCE 
PROBABILITY 10 THROUGH 90 PERCENT IN INCREMENTS OF 10.
 
USERS ARE ENCOURAGED TO PROVIDE FEEDBACK ON THESE EXPERIMENTAL 
PRODUCTS BY USING THE BRIEF SURVEY AND COMMENT FORM AVAILABLE ON 
LINE AT /USE LOWERCASE/:

HTTP://WWW.WEATHER.GOV/SURVEY/NWS-SURVEY.PHP?CODE=PHSS

IF YOU HAVE TECHNICAL COMMENTS OR QUESTIONS...PLEASE CONTACT: 
ARTHUR TAYLOR
NATIONAL WEATHER SERVICE
METEOROLOGICAL DEVELOPMENT LABORATORY
ARTHUR.TAYLOR@NOAA.GOV
301-713-1613 x163 

FOR POLICY COMMENTS OR QUESTIONS...PLEASE CONTACT:

JOHN KUHN
NATIONAL WEATHER SERVICE
MARINE AND COASTAL WEATHER SERVICES BRANCH
JOHN.F.KUHN@NOAA.GOV
301-713-1677 X121

NATIONAL PUBLIC INFORMATION STATEMENTS ARE ONLINE AT  
/USE LOWERCASE/:

HTTP://WWW.WEATHER.GOV/OS/NOTIF.HTM

$$
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