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Monthly Water Resource Summary

February, 2020

Precipitation

For February 2020, Indiana's precipitation was above normal, with average temperature above normal. The statewide monthly precipitation average was 119.1 percent of normal. The overall monthly temperature average for Indiana was 32.4 degrees Fahrenheit or 1.9 degrees above normal.

Seven of the nine climate divisions received well above normal precipitation for the month of February. Climate Division 6 (EC) received the highest (145.7) percentage of normal precipitation for the month, while Climate Division 2 (NC) received the lowest (79.5) percentage.

For the year to date, eight of the nine climate divisions have received above normal precipitation, ranging from 95.3 percent of normal for Division 2 (NC) to 147.9 percent of normal for Division 6 (EC). For the 2020 water year, which began October 1, 2019, total precipitation is above normal for eight of the nine climate divisions (87.1% to 124.5% percent of normal). Over the longer duration, beginning January 2019, all nine climate divisions have received above normal precipitation. These range from 104.3 percent for Climate Division 2 (NC) to 130.8 percent for Climate Division 7 (SW).

The 12-month Standardized Precipitation Index (SPI) shows Climate Division 7 (SW) in the "very wet" category; climate divisions 1 (NW), 3 (NE) and 8 (SC) in the "moderately wet" category; with the remaining climate divisions in the "near normal" category.   The 6-month SPI indices shows Climate Division 1 (NW) in the "moderately wet" category; with the remaining climate divisions in the "near normal" category. The 3-month SPI indices shows climate division 6 (EC) and 9 (SE) in the "moderately wet" category; with the remaining climate divisions in the "near normal" category.  The 1-month SPI indices shows all climate divisions in the "near normal" category.

U. S. Drought Monitor

For February 25, 2020, the U.S. Drought Monitor shows the state is not experiencing any drought conditions.  The U.S. Seasonal Drought Outlook predicts no drought conditions through the end of May, 2020.

Streamflow

In February 2020, of the twelve streams included in drought reporting since 1999, eleven had stream flow well above normal.  The Eel River at North Manchester had the lowest mean monthly flow at 88%, and the White River near Centerton had the highest mean monthly flow at 164%.     

Detailed Information on Streamflow

Lake Michigan

On February 28, 2020, the Lake Michigan-Huron forecasted water level was two inches below the measurement taken on January 28, 2020, and fifteen inches above the measurement taken on February 28, 2019. On February 29, 2020, the Michigan-Huron level was 581.42 feet, which is about 64 inches above the lowest recorded monthly mean level for February set in 1964. Comparison of February monthly mean water levels to the long-term (1918-present) average shows Lakes Michigan-Huron water levels were about 42 inches above the average. The February monthly mean water level is 5 inches higher than the February record maximum of 581.51 feet set in 1986. 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 rise about two inches over the next month.

Reservoirs

On February 28, 2019, 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 +0.3 feet (Brookville) to +19.7 feet (Cagles Mill). 

Two of the three reservoirs monitored by Citizens Water, Morse and Geist, were above their respective normal pool elevations as of March 2, 2020. Eagle Creek Reservoir was below normal pool elevation. The deviation from normal pools ranged from -1.14 feet (Eagle Creek) to 0.42 feet (Morse).

Groundwater Levels

As of March 2, 2020 new water level data is available for all of the nine wells currently monitored. Of the nine wells monitored, data indicates groundwater levels are currently slightly above to above normal for Lagrange 2, Vigo 7, Morgan 4, Posey 3 and Harrison 8. Groundwater levels are near normal for LaPorte 9, Fulton 7 and Randolph 3 and well below normal for Clark 20. 

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

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