Public Information Statement - River Forecast Center


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PUBLIC INFORMATION STATEMENT
NWS ALASKA PACIFIC RIVER FORECAST CENTER ANCHORAGE AK
0400 PM ADT THU JUN 03 2014


TO:        FAMILY OF SERVICES /FOS/ SUBSCRIBERS...NOAA WEATHER
           WIRE SERVICE /NWWS/ SUBSCRIBERS...EMERGENCY MANAGERS
           WEATHER INFORMATION NETWORK /EMWIN/ SUBSCRIBERS...
           OTHER NATIONAL WEATHER SERVICE /NWS/ CUSTOMERS AND
           PARTNERS... OTHER NEWS MEDIA AND NWS EMPLOYEES

FROM:      ROBIN RADLEIN REGIONAL HYDROLOGIST... ALASKA REGION

SUBJECT:   DATUM CHANGE AND SUBSEQUENT FLOOD LEVELS CHANGED AT 
           CHILKAT RIVER NEAR KLUKWAN

THE NATIONAL WEATHER SERVICE HAS ESTABLISHED A FLOOD STAGE AT THE 
CHILKAT RIVER NEAR KLUKWAN BUT A REVISION IS NEEDED DUE TO A  
DATUM CHANGE BY THE U.S. GEOLOGICAL SERVICE WHEN THEY ASSUMED 
RESPONSIBILITY FOR THE GAGE. THE FLOOD STAGE IS A RESULT 
OF FIELD AND OFFICE ANALYSES OF KNOWN IMPACTS. FLOOD STAGES THAT 
ESTIMATES OF MINOR... MODERATE... AND MAJOR FLOOD STAGES... 
BANKFULL STAGE... AND ACTION STAGE WERE ESTABLISHED OR 
REVISED WHEN ADDITIONAL INFORMATION WAS DETERMINED. THESE STAGES 
HAVE BEEN IMPLEMWENTED IN ALL EXISTING TEXT AND WEB PRODUCTS. 
THE NATIONAL WEATHER SERVICE DEFINITIONS FOR THESE TERMS ARE 
AVAILABLE ON THE WEB AT:
HTTP://APRFC.ARH.NOAA.GOV/RESOURCES/DOCS/FLOODTERMS.PHP


VALUES IN THE FOLLOWING TABLE ARE REVISIONS FOR SITES WITH PREVIOUSLY
ESTABLISHED VALUES.  BOTH THE OLD AND THE NEW VALUES ARE LISTED.

                                                   FLOOD STAGES

           RIVER           STATUS BANKFULL ACTION MINOR MODERATE MAJOR
.......................................................................

  CKTA2  CHILKAT RIVER       OLD      21.0  21.0   21.5   23.0   25.0
  CKTA2  CHILKAT RIVER       NEW     126.5 126.5  127.0  128.5  130.5

PLEASE NOTE THAT THESE FLOOD STAGES ARE SUBJECT TO CHANGE. THE 
NATIONAL WEATHER SERVICE IN ALASKA WILL CONTINUE TO MONITOR THIS
AND OTHER GAGING LOCATIONS AND MAKE APPROPRIATE CHANGES AS MORE 
INFORMATION BECOMES AVAILABLE. INFORMATION ON THE BASIS FOR EACH OF 
THESE  SELECTED STAGES IS PROVIDED IN A LIST OF IMPACTS FOR EACH SITE 
ON THE RIVER CONDITIONS PAGE OF THE WEB SITE LISTED BELOW. IF YOU HAVE
ANY SPECIFIC DOCUMENTATION OF FLOODING AT THIS OR ANY OTHER LOCATION...
OR HAVE ANY QUESTIONS OR COMMENTS ABOUT THIS PRODUCT... PLEASE CALL OR 
WRITE TO THE FOLLOWING CONTACTS IN ANCHORAGE:

PHONE:    1-800-847-1739
E-MAIL:   BECKY.PERRY@NOAA.GOV
WEB:      HTTP://APRFC.ARH.NOAA.GOV/

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