Quoting the Indianapolis Star: "Indianapolis and parts of central Indiana could remain under a flood watch through Sunday as more rain and storms are in the weekend forecast.
Storms Wednesday night dumped up to three inches of rain on Indianapolis creating flash flood warnings across the metro area.
Mike Ryan, meteorologist at the National Weather Service, said multiple waves of rain are expected to drop another 3-5 inches by the end of the weekend, which has the potential to cause more flooding.
“The highest amounts will be south of Indianapolis, more down in south central Indiana, but still, that is going to be a sizable amount of rainfall on top of what we already have occurring last night,” Ryan said.
Experts at Indiana University say the storm Wednesday was an atmospheric river event, akin to those associated with storms on the Pacific Coast. Atmospheric rivers occur when there is a high amount of moisture in the air that meets a strong front and gets a bit of uplift, said Travis O'Brien, associate professor at IU's Department of Earth and Atmospheric Sciences.
"Our best guess right now between yesterday's storm and through Sunday is six to nine inches, which is quite a lot of rain to fall over a several day period," O'Brien said. Some regions may get as much as 15 (inches), so the wording that National Weather Service is using is this going to be a "generational storm.""
The College of Arts