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Indiana Department of Natural Resources

Water > Water Availability / Use / Rights > Water Resource Updates (updated monthly) > Monthly Water Resource Summary Monthly Water Resource Summary

October, 2014

Precipitation

October 2014 Indiana precipitation was generally above normal across most of the state. Temperature on the whole was slightly above normal. The statewide monthly precipitation average was about 145 percent of normal. The overall monthly temperature average for Indiana was 53.8 degrees Fahrenheit or 0.2 degrees below normal.

Eight of Indiana’s nine climate divisions received above-normal precipitation for the month of October. The west-central climate division received the highest (186.9) percentage of normal precipitation for the month, while the east-central division received the lowest (95.2) percentage.

For the year to date, each of the nine climate divisions have received above-normal precipitation, ranging from 107.2 percent for the southeastern climate division to 129.9 percent for the northwestern division. Starting from January 2013, each of the state’s climate divisions has received above-normal precipitation. Those ranges are from 107.3 percent for the southeastern division to 118.2 percent for the northwestern division.

For the Standardized Precipitation Index (SPI) long-term 12-month index, four of Indiana’s nine climate divisions are in the “near normal” category. The northwestern division is in the “very wet” range, and the west-central, east-central, southwestern, and south-central divisions lie in the “moderately wet” category. The six-month index shows the northwestern climate division in the “extremely wet” range. The rest of the state is in the “near normal” category. For the three-month index, the northwestern climate division is in the “very wet” range and the southwestern division is in the “moderately wet” category. The remaining divisions are within the “near normal” range. The one-month index shows the west-central, southwestern, and south-central climate divisions in the “moderately wet” category. The rest of the state lies within the “near normal” range.

U. S. Drought Monitor
The period ending Oct. 28, 2014 showed abnormally dry conditions for portions of north-central and northeastern Indiana. About 97 percent of Indiana showed no drought conditions.

Streamflow
Mean monthly flows for two of the 12 monitored streams were below their historical mean monthly flow for the month of October. The St. Marys River at Decatur had the lowest mean monthly flow with 81 percent of the historical mean flow for the month. The Kankakee River at Shelby had the highest mean monthly flow with 238 percent of the historical mean flow for the month..

Detailed Information on Streamflow

Lake Michigan
The lake Michigan-Huron water level for October was one inch above last month’s water level, and 22 inches above the October 2013 water level. Comparison of October monthly mean water levels to long-term (1918-present) averages shows that Michigan-Huron water levels were about 4 inches above average. On Oct. 31, 2014, the Michigan-Huron water level was 579.19 feet. The water level was about 33 inches above the previously lowest recorded monthly mean level for October, set in 1964.

The U.S. Army Corps of Engineers predicts the lake Michigan-Huron water level to decrease 2 inches over the next month

Reservoirs
The water levels in five of the eight Indiana reservoirs being monitored by the U.S. Army Corps of Engineers were below their normal pool elevation on Nov. 2, 2014. The normal pool deviation ranged from -5.1 feet (Salamonie) to 1.0 feet (Patoka).

One of the three reservoirs monitored by Citizens Water--Morse, Geist, and Eagle Creek-- was below its normal pool elevation as of Oct. 31, 2014. The reservoirs’ deviation from their normal pools ranged from -1.34 feet (Eagle Creek) to 0.15 feet (Morse).

Ground Water Levels
As of Oct. 31, 2014, recent water-level data are available for each of the nine wells being monitored. The water level for the observation wells is above normal for LaPorte 9, Fulton 7, Vigo 7, Harrison 8, and Posey 3; near normal for Morgan 4, Randolph 3, and Clark 20; and below normal for LaGrange 2. Groundwater levels are expected to increase through November for much of the state.

Real-time data are available for all nine observation wells. The real-time information may be accessed on the following U.S. Geological Survey website: http://waterdata.usgs.gov/in/nwis/current/?type=gw

Acknowledgments
This report has been compiled from Division of Water data and from information supplied by the following:

Precipitation data:
National Oceanic and Atmospheric Administration, National Weather Service, Midwestern Regional Climate Center

Standard Precipitation Index (SPI):
National Drought Mitigation Center (NDMC) and Western Regional Climate Center (WRCC)

Streamflow:
U.S. Geological Survey and State of Indiana cooperative program

Lake Michigan level data:
U.S. Army Corps of Engineers, Detroit District 

Reservoir data:
U.S. Army Corps of Engineers, Louisville District

Ground water level data:
U.S. Geological Survey and State of Indiana cooperative program 

Palmer Drought Severity Index:
U.S. Department of Commerce, National Oceanic and Atmospheric Administration, National Weather Service

Temperature data:
Indiana State Climate Office, Purdue University