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Monthly Water Resource Summary

January 2024

Precipitation

January 2024 Indiana precipitation was above normal, with average temperature above normal. The statewide monthly precipitation average was 181.0 percent of normal. The overall monthly temperature average for Indiana was 27.6 degrees Fahrenheit or 1.6 degrees above normal.

All nine climate divisions received much above normal precipitation for January (see Percent of Normal Precipitation Table).  Climate Division 1 (NW) received the highest (199.2) percentage of normal precipitation for the month, while Climate Division 6 (EC) received the lowest (157.8) percentage.

Precipitation for the Water Year (2024) ranges from 80.5% to 132.8% through January. Over the longer duration (from February 2022) four of the nine climate divisions have received slightly below normal precipitation ranging from 85.9% for Climate Division 6 (EC) to 97.3% for Climate Division 8 (SC).

The 12-month, 6-month, and 3-month SPI indices shows all climate divisions in the “near normal” category.  The 1-month SPI indices shows climate divisions 1 (NW), 2 (NC), 3 (NE) and 4 (WC) in the “very wet” category; and climate divisions 5 (C), 6 (EC), 7 (SW), 8 (SC), and 9 (SE) in the “near normal” category.

U. S. Drought Monitor

For January 30, 2024, the U.S. Drought Monitor shows a large area on a diagonal from Sullivan County in Southwest Indiana across central Indiana to the southern part of Allen County is experiencing “Abnormally Dry” conditions.  The rest of the state is no longer experiencing any drought conditions, The U.S. Seasonal Drought Outlook predicts drought conditions to end by the end of April 2024.

Streamflow

In January 2024, Seven of the twelve streams included in drought reporting since 1999 had much below normal stream flow. The White River at Petersburg had the lowest mean monthly flow at 47%, and the Eel River at North Manchester had the highest mean monthly flow at 195%.

Detailed Information on Streamflow

Lake Michigan

On February 2, 2024, the Lake Michigan-Huron forecasted water level was 1 inch below the measurement taken on January 2, 2024, and the same as the measurement taken on February 2, 2023. On January 31, 2024, the Michigan-Huron level was 578.77 feet, which is 33 inches above the lowest recorded monthly mean level for January set in 2013. Comparison of January monthly mean water levels to the long-term (1918-present) average shows Lakes Michigan-Huron water levels were about 5 inches above the average. All Lake Michigan-Huron data are referenced to the International Great Lakes Datum 1985.

The Lake Michigan-Huron water level is forecast by the U.S. Army Corps of Engineers to fall 1 inch over the next month.

Reservoirs

On January 31, 2024, the water levels for all eight reservoirs monitored by the U.S. Army Corps of Engineers were above the normal pool elevation. The deviation from normal pool ranged from +1.2 feet (Monroe) to +12.8 feet (Harden).

Two of the three reservoirs monitored by Citizens Water, Morse and Geist, were above their respective normal pool elevations as of January 31, 2024. The deviation from normal pools ranged from -1.42 feet (Eagle Creek) to +0.60 feet (Morse).

Groundwater Levels

As of February 2, 2024, new water level data is available for all nine wells currently monitored. Of the nine wells, data indicates that water levels are above normal for Laporte 9, Harrison 8 and Clark 20. Water levels are near normal for Fulton 7 and below to well below normal for Lagrange 2, Vigo 7, Morgan 4, Randolph 3 and Posey 3. On January 5, 2024, a new record low was set for Morgan 4 at -17.33 feet below land surface.

Real-time data is available for all of the wells and may be accessed on the following U.S. Geological 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

Standardized 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

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

Temperature data:
Midwestern Regional Climate Center and Indiana State Climate Office, Purdue University

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