Change in Minor Flood Stage at Clay City, beginning Thursday February 7th.
-Family of Services
-NOAA Weather Wire Service
-Emergency Managers Weather information Network
Other NWS partners, users and employees
From: Darrin Hansing
NWS Lincoln, IL
SUBJECT: Change in minor flood stage at the Little Wabash River
near Clay City from 16 feet to 18 feet, effective February 7,
The National Weather Service (NWS) forecast office in Lincoln,
IL will raise the minor flood stage for the U.S. Geological
Survey river gage, located along the Little Wabash River near
Clay City, from 16 feet to 18 feet. This change will become
effective on February 7, 2013. The NWS location identifier
(NWSLI) at this location is CLAI2.
Through multiple site visits by the National Weather Service
and Clay County Emergency Management, it has been determined
that impacts due to high river levels are not observed until
the river reaches at least 18 feet. At that level,
agricultural land that is not immediately adjacent to the
river begins to flood. Upon reaching a stage of 18.5 feet,
two roads within the reach of the river have water over them.
The adjustment of flood stage will benefit the residents near
Clay City by allowing the National Weather Service to more
accurately convey the threat of flooding, thereby reducing
the amount of unnecessary flood warnings issued for this
location. This change has been coordinated with the U.S.
Geological Survey (USGS) and the local Emergency Management.
Minor flood stage is the river level at which minimal human
impact from floodwaters begins, and the level the National
Weather Service uses as a threshold for issuing river flood
warnings. Moderate and major flood levels are levels at which
human impact increases noticeably. Numerous secondary roads
are often inundated and some outbuildings may be flooded. At
major levels, primary roads and highways can become flooded
along with residences and businesses.
River forecast and flood information is available from the NOAA
NWS Advanced Hydrologic Prediction Service (AHPS) page by
clicking on the Rivers and Lakes link on the left hand menu of
the NWS Lincoln web site at...
River forecast information is also broadcast on NOAA Weather
The National Weather Service welcomes public feedback. If you
have any questions or comments about these service changes,
National Weather Service Forecast Office
1362 State Route 10
Lincoln, IL 62656
Phone: 217-732-4029 X493