Public Information Statement
Issued by NWS Northern Indiana

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SERVICE CHANGE NOTICE
NATIONAL WEATHER SERVICE NORTHERN INDIANA
600 PM EDT FRI AUG 8 2014

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

FROM:MARK FRAZIER
METEOROLOGIST IN CHARGE
WEATHER FORECAST OFFICE NORTHERN INDIANA

SUBJECT:CHANGE IN GAUGE ZERO ELEVATION FOR THE RIVER GAUGE
NEAR DAVIS ON THE KANKAKEE RIVER /DAVI3/


EFFECTIVE AT 1200 COORDINATED UNIVERSAL TIME ON APRIL 15 2014 THE
UNITED STATES GEOLOGICAL SURVEY /USGS/ CHANGED THE GAUGE ZERO /GAUGE
DATUM/ ELEVATION FOR THE RIVER GAUGE AT DAVIS ON THE KANKAKEE RIVER
FROM 664.68 FEET ABOVE NATIONAL GEODETIC VERTICAL DATUM OF 1929
/NGVD29/ TO 664.34 FEET ABOVE NORTH AMERICAN VERTICAL DATUM OF 1988
/NAVD88/. FOR THIS LOCATION...GAUGE ZERO IS THE ELEVATION AT WHICH
RIVER STAGE IS ZERO FEET.  THE GAUGE WAS MOVED FROM ITS LOCATION ON
U.S. ROUTE 30 TO A LOCATION ON THE RIVER WHERE IT CROSSES COUNTY
ROAD 1500 SOUTH.

THIS CHANGE WAS MADE DUE TO SAFETY CONCERNS WITH ITS  PREVIOUS LOCATION
ON A BUSY U.S. HIGHWAY NEAR DAVIS AND AS PART OF A RECENT INITIATIVE TO
MODERIZE VERTICAL DATUMS ASSOCIATED WITH THE STREAM GAUGING EQUIPMENT.
THIS CHANGE IN THE GAUGE ZERO DID NOT REQUIRE A CHANGE IN FLOOD
STAGE...FLOOD CATEGORIES OR FLOOD IMPACT STAGE LEVELS.

OBSERVATIONS AND FORECASTS WILL REMAIN AS STAGE REPORTS IN FEET ABOVE
GAUGE ZERO FOR THE STREAM GAUGE NEAR DAVIS ON THE KANKAKEE RIVER
AND CAN BE USED BY PERSONS BETWEEN DAVIS INDIANA AND KOUTS INDIANA.

THE NATIONAL WEATHER SERVICE WELCOMES PUBLIC FEEDBACK.  IF YOU HAVE
ANY QUESTIONS OR COMMENTS ON THE CHANGE...PLEASE CONTACT:

MIKE REHBEIN
SERVICE HYDROLOGIST
NATIONAL WEATHER SERVICE FORECAST OFFICE
7506 E 850 N
SYRACUSE IN  46567

PHONE:  574-834-1104  EXT. 493
EMAIL:  MICHAEL.REHBEIN@NOAA.GOV

$$









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