Bloomington climate trends could mean wetter summers, higher lake levels

Three decades from now, Indiana is forecast to see between 6 and 8 percent more rainfall than it averaged in the past, depending on the amount of greenhouse gas emissions during the lead-up to mid-century.

That’s according to a 2018 report from the Purdue Climate Change Research Center.

According to the report, in southern Indiana, the increased precipitation is predicted to come more in the winter and spring months.

But based on records of precipitation and the water levels at Lake Monroe in the past two and a half decades, southern Indiana looks like it could be seeing more rain in the first half of summer.

Earlier this week, the Indianapolis office of the National Weather Service tweeted out a link to a report on the anomaly of this summer’s first half: It has been way wetter than normal.

The abnormal amount of region-wide rainfall has caused high water on Lake Monroe. Last week Indiana’s Department of Natural Resources closed the swim beaches at the lake’s Fairfax SRA and Paynetown SRA and they’ve stayed closed.

Rainfall and lake levels are related, of course. And over the last quarter century, both seem to be showing an upward trend for this time of year. Continue reading “Bloomington climate trends could mean wetter summers, higher lake levels”

At record high for this time of year, Lake Monroe starting to level off

Wednesday morning, a pontoon pilot approached the Lake Monroe causeway—it’s where SR 446 crosses the reservoir, leaving a gap at the south end for boaters to navigate under the road.

Cropped causeway underpass IMG_6348
View looking northwest under the SR 446 causeway across Lake Monroe on June 26, 2019 (Dave Askins/Beacon)

But the captain reversed his engine, brought his craft about, then idled, floating maybe 30 yards west of the underpass. He and his crewmate made quick work of the task that allowed them to navigate through the opening: They unclipped the guy wires and lowered the frame that held the canopy aloft.

They might have had enough clearance to scrape under the bridge, without lowering the sun shade. But the record-high levels of the lake—for this time of year—meant that it would have been close.

The normal level of the lake is 538 feet above sea level. But through Wednesday, Lake Monroe registered about 552.6 feet on the USGS gauge. The U.S. Army Corps of Engineers (USACE), which manages the lake, typically reports water levels using the number of feet above the normal pool. That’s currently 14.6 feet. Continue reading “At record high for this time of year, Lake Monroe starting to level off”