Columbia, South Carolina

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From: Kimberly Campbell
meteorologist in charge
NWS Columbia South Carolina

Subject: change in gage zero and flood stage at Augusta Georgia
on the Butler Creek/Savannah River

The U.S. Geological survey will change the gage datum on the river
gage at Augusta on the Butler Creek/Savannah River from 95.58 feet
above mean sea level to mean sea level (msl) which is zero. The
change in the gage datum requires a change in the flood stage.

The change will become effective at 1200 coordinated Universal time
on Monday December 21 2009.

The change in the datum to zero will require a change in the flood
stage to insure that there will be no change in the NWS forecast and
warning service for Augusta on the Savannah River.

The new flood stage will be set at 117.5 feet above mean sea level.
The previous flood stage was 22 feet (117.58 feet msl). The new
flood stage is rounded to the nearest half foot.

The National Weather Service welcomes public feedback. If you have
any questions or comments on this change... please contact:

Gregory lamberty
service hydrologist
National Weather Service Columbia South Carolina
2909 aviation way
West Columbia South Carolina 29170
phone number: 803-822-8135